Cisco 200-120

CCNA Cisco Certified Network Associate CCNA
Version: 25.0

Cisco 200-120 Exam
Topic 1, Operation of IP Data Networks
QUESTION NO: 1
Refer to the exhibit:

What will Router1 do when it receives the data frame shown? (Choose three.)
A. Router1 will strip off the source MAC address and replace it with the MAC address
0000.0c36.6965.
B. Router1 will strip off the source IP address and replace it with the IP address 192.168.40.1.
C. Router1 will strip off the destination MAC address and replace it with the MAC address
0000.0c07.4320.
D. Router1 will strip off the destination IP address and replace it with the IP address of
192.168.40.1.
E. Router1 will forward the data packet out interface FastEthernet0/1.
F. Router1 will forward the data packet out interface FastEthernet0/2.
Answer: A,C,F
Explanation:
Remember, the source and destination MAC changes as each router hop along with the TTL
being decremented but the source and destination IP address remain the same from source to
destination.

QUESTION NO: 2
Refer to the exhibit.
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2

Cisco 200-120 Exam

Which three statements correctly describe Network Device A? (Choose three.)
A. With a network wide mask of 255.255.255.128, each interface does not require an IP address.
B. With a network wide mask of 255.255.255.128, each interface does require an IP address on a
unique IP subnet.
C. With a network wide mask of 255.255.255.0, must be a Layer 2 device for the PCs to
communicate with each other.
D. With a network wide mask of 255.255.255.0, must be a Layer 3 device for the PCs to
communicate with each other.
E. With a network wide mask of 255.255.254.0, each interface does not require an IP address.
Answer: B,D,E
Explanation:
If Subnet Mask is 255.255.255.128the hosts vary from x.x.x.0 -x.x.x.127 & x.x.x.128- x.x.x.255,so
the IP Addresses of 2 hosts fall in different subnets so each interfaceneeds an IP an address so
thatthey can communicate each other.
If Subnet Mask is 255.255.255.0 the 2 specified hosts fall in different subnets so they need a
Layer 3 device to communicate.
If Subnet Mask is 255.255.254.0 the 2 specified hosts are in same subnetso are in network
address and can be accommodated in same Layer 2 domainand can communicate with each
other directly using the Layer 2 address.

QUESTION NO: 3
Which layer in the OSI reference model is responsible for determining the availability of the

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3

Cisco 200-120 Exam
receiving program and checking to see if enough resources exist for that communication?
A. transport
B. network
C. presentation
D. session
E. application
Answer: E
Explanation:
This question is to examine the OSI reference model.
The Application layer is responsible for identifying and establishing the availability of the intended
communication partner and determining whether sufficient resources for the intended
communication exist.

QUESTION NO: 4
Which of the following describes the roles of devices in a WAN? (Choose three.)
A. A CSU/DSU terminates a digital local loop.
B. A modem terminates a digital local loop.
C. A CSU/DSU terminates an analog local loop.
D. A modem terminates an analog local loop.
E. A router is commonly considered a DTE device.
F. A router is commonly considered a DCE device.
Answer: A,D,E
Explanation:
The idea behind a WAN is to be able to connect two DTE networks together through a DCE
network. The network’s DCE device (includes CSU/DSU) provides clocking to the DTE-connected
interface (the router’s serial interface).

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4

Cisco 200-120 Exam

A modem modulates outgoing digital signals from a computer or other digital device to analog
signals for a conventional copper twisted pair telephone line and demodulates the incoming
analog signal and converts it to a digital signal for the digital device. A CSU/DSU is used between
two digital lines For more explanation of answer D, in telephony thelocal loop(also referred to as a subscriber
line) is the physical link or circuit that connects from the demarcation point of the customer
premises to the edge of the carrier or telecommunications service provider’s network. Therefore a
modem terminates an analog local loop is correct.

QUESTION NO: 5
Refer to the exhibit.

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5

Cisco 200-120 Exam

Host A pings interface S0/0 on router 3. What is the TTL value for that ping?
A. 252
B. 253
C. 254
D. 255
Answer: B
Explanation:
From the CCNA ICND2 Exam book: “Routers decrement the TTL by 1 every time they forward a
packet; if a router decrements the TTL to 0, it throws away the packet. This prevents packets from
rotating forever.” I want to make it clear that before the router forwards a packet, the TTL is still
remain the same. For example in the topology above, pings to S0/1 and S0/0 of Router 2 have the
same TTL.
The picture below shows TTL values for each interface of each router and for Host B. Notice that
Host A initializes ICMP packet with a TTL of 255:

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6

internet F. application B.actualtests. Any Time. presentation C." . transport E.www. session D. What is the highest layer of the protocol stack that the network administrator is using for this operation? A. "Pass Any Exam.Cisco 200-120 Exam QUESTION NO: 6 A network administrator is verifying the configuration of a newly installed host by establishing an FTP connection to a remote server. data link Answer: A Explanation: FTP belongs to Application layer and it is also the highest layer of the OSI model.com 7 .

which entry will be in the ARP cache of HostA to support this transmission? "Pass Any Exam." . Any Time.Cisco 200-120 Exam QUESTION NO: 7 Refer to the exhibit. After HostA pings HostB.actualtests.com 8 .www.

6." .Thisinformation (IP and MAC address of the default gateway) is saved in its ARP cache for later use.com 9 . Exhibit B C.actualtests.www. Exhibit D E.168.168.Cisco 200-120 Exam A. QUESTION NO: 8 A network interface port has collision detection and carrier sensing enabled on a shared twisted "Pass Any Exam. Exhibit F Answer: A Explanation: Host A knows host B is in another network so it will send the pings to its default gateway 192. Exhibit A B.1. Exhibit C D.1. Host A sends a broadcast frame asking the MAC address of 192. Any Time. Exhibit E F.6.

The Data Link layer formats the message into pieces. QUESTION NO: 9 A receiving host computes the checksum on a frame and determines that the frame is damaged. network topology.Cisco 200-120 Exam pair network. This is an Ethernet port operating at full duplex. session B. Any Time.www. According to this question the frame is damaged and discarded which will happen at the Data Link layer. and flow control. and adds a customized header containing the hardware destination and source address. Answer: C Explanation: Modern Ethernet networks built with switches and full-duplex connections no longer utilize CSMA/CD.actualtests. each called a data frame. At which OSI layer did this happen? A. QUESTION NO: 10 "Pass Any Exam. This is a 10 Mb/s switch port. B. what is known about the network interface port? A. C. This is a 100 Mb/s switch port. D." . The frame is then discarded. From this statement. physical Answer: D Explanation: The Data Link layer provides the physical transmission of the data and handles error notification.com 10 . data link E. Protocols Data Unit (PDU) on Datalink layer is called frame. network D. This is a port on a network interface card in a PC. This is an Ethernet port operating at half duplex. CSMA/CD is only used in obsolete shared media Ethernet (which uses repeater or hub). transport C. E.

Packets are created when the network layer adds Layer 3 addresses and control information to a segment. in TCP. QUESTION NO: 11 Refer to the graphic. For example. "Pass Any Exam. The presentation layer translates bits into voltages for transmission across the physical link. this layer controls the logical addressing of devices. B. E.D Explanation: The transport layer segments data into smaller pieces for transport. Any Time. and routes the data appropriately. First. The data link layer adds physical source and destination addresses and an FCS to the segment.com 11 . the network layer determines the best path to a particular destination network. The transport layer also use flow control to maximize the transfer rate while minimizing the requirements to retransmit. Packets are created when the network layer encapsulates a frame with source and destination host addresses and protocol-related control information. Each segment is assigned a sequence number. so that the receiving device can reassemble the data on arrival.) A. Answer: A. Second. basic flow control is implemented by acknowledgment by the receiver of the receipt of data.actualtests.Cisco 200-120 Exam Which of the following correctly describe steps in the OSI data encapsulation process? (Choose two. The transport layer divides a data stream into segments and may add reliability and flow control information. the sender waits for this acknowledgment before sending the next part. D. C." .www. The Network layer (Layer 3) has two key responsibilities.

These network-layer headers contain source and destination network addresses. Examine the age of the packet.com 12 . The router must ensure that the packet has not come too far to be forwarded. the router discards the packet. The router then strips off the MAC header and examines the networklayer header to determine what to do with the packet. If an IP packet has a TTL value of 1.www. the MAC address of router interface e0 B. and remove the MAC header. the MAC address of the server network interface D. the router must perform the following steps: 1. Routers make forwarding decisions based on the packet's network-layer header (such as an IPX header or IP header). IP headers contain a Time to Live (TTL) value. the IP TTL value decrements as the IP packet is forwarded through each router. the router "Pass Any Exam. 2. IPX headers contain a hop count." . Unlike the IPX hop count. Local devices address packets to the router's MAC address in the MAC header. By default. What will be the source MAC address of the frames received by Host A from the server? A. which increments as the packet is forwarded through each router. Any Time.Cisco 200-120 Exam Host A is communicating with the server. 15 hops is the maximum number of hops (or routers) that a packet can cross. The router checks the packet for MAC-layer errors. routers can look further into the packet to discover the network for which a packet is destined. If a packet has a hop count of 15. the MAC address of router interface e1 C. the MAC address of host A Answer: A Explanation: Whereas switches can only examine and forward packets based on the contents of the MAC header. After receiving the packets. Check the incoming packet for corruption.actualtests. For example.

The number of collision domains would decrease. C. Finally. QUESTION NO: 12 Refer to the exhibit. The number of broadcast domains would decrease. The number of broadcast domains would remain the same." . F.com 13 . "Pass Any Exam.) A. The MAC header includes the router's MAC address and the final destination's MAC address or the MAC address of the next router in the path. Determine the route to the destination. Any Time. and the distance to those networks. B. the direction to the desired network (the outgoing interface number). The number of broadcast domains would increase. the router builds a new MAC header for the packet. The number of collision domains would remain the same.Cisco 200-120 Exam discards the packet.) 4. A router cannot decrement the TTL value to 1 and then forward the packet. (If you want to read the IP routing tables on a Windows 95/98 workstation.www. What two results would occur if the hub were to be replaced with a switch that is configured with one Ethernet VLAN? (Choose two. type ROUTE PRINT in the DOS box. D. E.actualtests. Build the new MAC header and forward the packet. the router must build a new header. After determining which direction to forward the packet. 3. The number of collision domains would increase. Routers maintain a routing table that lists available networks.

you break up collision domains by switching packets bound for other collision domains. a broadcast domain can contain multiple collision domains. The simple way to look at it is this way: switches break up collision domains. we have TWO broadcast domains. Also. however. don't allow broadcasts through by default. but a collision domain can never have more than one broadcast domain associated with it. you generally have one collision domain to a PC. An example for Broadcasting would be DHCP Request from a Client PC. A Router is used to separate Broadcast-Domains (we could also call them Subnets . it doesn't get forwarded. Collision Domain: A group of Ethernet or Fast Ethernet devices in a CSMA/CD LAN that are connected by repeaters and compete for access on the network. this meant you had a lot of collisions. These days. so when a broadcast hits a router (or the perimeter of a VLAN). Broadcast Domain: Broadcasting sends a message to everyone on the local network (subnet).Cisco 200-120 Exam Answer: C. hub. But only the DHCP Server will answer to the Request. all these devices are in ONE Broadcast domain (assuming a single VLAN). Routers.or call them VLANs). if a router stands between all these devices. broadcasts can traverse collision domains freely. and the other devices in the domain listen to the network in order to avoid data collisions.D Explanation: Basically. Any Time." . In the old days of hubs. but the client does not know how to reach the DHCP Server. if they are connected with a repeater. Since switches and bridges allow for broadcast traffic to go unswitched. Collision Domain: "Pass Any Exam. Broadcast domains are exactly what they imply: they are network segments that allow broadcasts to be sent across them. So. How to count them? Broadcast Domain: No matter how many hosts or devices are connected together. while routers (and VLANs) break up collision domains and broadcast domains. a collision domain is a network segment that allows normal network traffic to flow back and forth. With switches.www. The Client is asking for a IP Address.com 14 . So the client sends a DHCP Discover packet to EVERY PC in the local subnet (Broadcast). since we mostly use switches to connect computers to the network. A collision domain is sometimes referred to as an Ethernet segment. and the old CSMA/CD would be working overtime to try to get those packets re-sent every time there was a collision on the wire (sinceEthernetallows only one host to be transmitting at once without there being a traffic jam).actualtests. Only one device in the collision domain may transmit at any one time. switch or bridge.

If a switch receives a frame for an unknown destination.Cisco 200-120 Exam Each connection from a single PC to a Layer 2 switch is ONE Collision domain. B. Note: Microsegmentation decreases the number of collisions but it increases the number of collision domains. In a properly functioning network with redundant switched paths. Spanning Tree Protocol allows switches to automatically share VLAN information. Microsegmentation reduces and can even eliminate collisions because each segment is its own collision domain ->. each switched segment will contain one root bridge with all its ports in the forwarding state. Each network device gets the full bandwidth of the segment and does not have to share the segment with other devices. Microsegmentation decreases the number of collisions on the network. F. we have 5 Collision domains. Establishing VLANs increases the number of broadcast domains. D. If 5 Devices are connected to a Hub. C. Switches that are configured with VLANs make forwarding decisions based on both Layer 2 and Layer 3 address information.E Explanation: Microsegmentation is a network design (functionality) where each workstation or device on a network gets its own dedicated segment (collision domain) to the switch. For example. this is ONE Collision Domain. if 5 PCs are connected with separate cables to a switch. E. we have one collision domain more. Answer: B.www." . Each device that is connected to a Layer 1 device (repeater.com 15 . All other switches in that broadcast domain will have only one root port. hub) will reside in ONE single collision domain. If this switch is connected to another switch or a router. internet "Pass Any Exam. Any Time.D.) A. application B. QUESTION NO: 13 Which three statements accurately describe Layer 2 Ethernet switches? (Choose three.actualtests. QUESTION NO: 14 Where does routing occur within the DoD TCP/IP reference model? A. it uses ARP to resolve the address.

Notice that the Internet Layer of TCP/IP is equivalent to the Network Layer which is responsible for routing decision." . transport Answer: B Explanation: The picture below shows the comparison between TCP/IP model & OSI model.Cisco 200-120 Exam C.www. network D.com 16 . Any Time. QUESTION NO: 15 Refer to exhibit: "Pass Any Exam.actualtests.

QUESTION NO: 16 For what two purposes does the Ethernet protocol use physical addresses? (Choose two.com 17 . it replaces the source MAC address with itsown E1 interface’s MAC address and replaces the destination MAC address with Host C’s MAC address before sending to Host C. Any Time.www. the MAC address of Host C E.Cisco 200-120 Exam Which two destination addresses will be used by Host A to send data to Host C? (Choose two. the MAC address of Switch 1 C. So in this case Host A will use the IP address of Host C and the MAC address of E0 interface to send data. the IP address of Host C D. to uniquely identify devices at Layer 2 B. the MAC address of the router's E0 interface Answer: C.) A. the IP address of Switch 1 B. When the router receives this data. the source and destination IP addresses are not changed. Only the source and destination MAC addresses are changed. to allow communication with devices on a different network "Pass Any Exam.actualtests." .F Explanation: While transferring data through many different networks.) A. the IP address of the router's E0 interface F.

Switch C. Switch A. QUESTION NO: 17 Refer to the exhibit. Switch D. because it has the lowest priority F. because it is the most centrally located switch E. If not. to differentiate a Layer 2 frame from a Layer 3 packet D. Any Time. each frame has the same priority to transmit by default ->. MAC addresses are only used to communicate on the same network. which switch will be elected root bridge and why? A. Switch C. because it has the highest MAC address D. to allow communication between different devices on the same network F. Switch A. Layer 3 packet also contains physical address ->. On Ethernet. Based on the information given. they cannot communicate ->. to establish a priority system to determine which device gets to transmit first E.com 18 . because it has the lowest MAC address B. because it is the most centrally located switch C. Layer 2 frame and Layer 3 packet can be recognized via headers.actualtests.www.Cisco 200-120 Exam C. To communicate on different network we have to use Layer 3 addresses (IP addresses) -> B is not correct.E Explanation: Physical addresses or MAC addresses are used to identify devices at layer 2. because it has the highest priority "Pass Any Exam. Switch B. All devices need a physical address to identify itself." . to allow detection of a remote device when its physical address is unknown Answer: A.

There are four collision domains in the network. Answer: A. The switch having the lowest prioritywill win the election process.If Priority Value is the same then it checks the MAC Address. F.www. There are six broadcast domains in the network. D.com 19 . There are five collision domains in the network. first check the priority value. Any Time. B.actualtests. QUESTION NO: 18 Which of the following statements describe the network shown in the graphic? (Choose two. C. There are four broadcast domains in the network.F Explanation: Only router can break up broadcast domains so in the exhibit there are 2 broadcast domains: from e0 interface to the left is a broadcast domain and from e1 interface to the right is another "Pass Any Exam. the switch having the lowest MAC Address will become the root bridge.) A. There are seven collision domains in the network." .In this case. E. There are two broadcast domains in the network.Cisco 200-120 Exam Answer: E Explanation: To elect the root bridge in the LAN. switch C has the lowest MAC Address so it becomes the root bridge.

Both router and switch can break up collision domains so there is only 1 collision domain on the left of the router (because hub doesn’t break up collision domain) and there are 6 collision domains on the right of the router (1 collision domain from e1 interface to the switch + 5 collision domains for 5 PCs in Production) ->. it will wait for a specified amount of time before attempting to transmit. QUESTION NO: 19 In an Ethernet network. Any Time.actualtests. when the medium is idle E. Use a hub to connect the four VLANS with a Fast Ethernet interface on the router. QUESTION NO: 20 A router has two Fast Ethernet interfaces and needs to connect to four VLANs in the local network. Add a second router to handle the VLAN traffic. When there is no traffic detected. a device will transmit its message. when they receive a special token B. Add two more Fast Ethernet interfaces. While this transmission is occurring. the device returns to its default listening mode. when there is a carrier C." . If more than one device transmits simultaneously. using the fewest physical interfaces and without decreasing network performance? A.) A. "Pass Any Exam.www. If a device detects another device is sending. when they detect no other devices are sending D.com 20 .Cisco 200-120 Exam broadcast domain ->. How can you accomplish this task. under what two scenarios can devices transmit? (Choose two. the device continues to listen for traffic or collisions on the LAN. when the server grants access Answer: C. B. C.D Explanation: Ethernet network is a shared environment so all devices have the right to access to the medium. After the message is sent. the signals collide and cannot reach the destination.

Router C will use ICMP to inform Router B that Host 2 cannot be reached.www." . D. E. Router C will send a Destination Unreachable message type.) A. Router A. F. Router C will send a Source Quench message type. "Pass Any Exam. Router C will send a Router Selection message type. B. Answer: A. Router C will use ICMP to inform Host 1 that Host 2 cannot be reached.com 21 . Which of the following are true? (Choose two. and Router B that Host 2 cannot be reached. Any Time. Implement a router-on-a-stick configuration. C. The e0 interface on Router C is down.D Explanation: Host 1 is trying to communicate with Host 2. QUESTION NO: 21 Host 1 is trying to communicate with Host 2. Router C will use ICMP to inform Host 1. The e0 interface on Router C is down. Answer: D Explanation: A router on a stick allows you to use sub-interfaces to create multiple logical networks on a single physical interface. Router C will send ICMP packets to inform Host 1 that Host 2 cannot be reached.actualtests.Cisco 200-120 Exam D.

a modem converts analog signals from a router to a leased line. (Not all options are used.actualtests. while a modem is used to convert digital signals over a regular POTS line. Any Time.com 22 .) Answer: "Pass Any Exam. Answer: D Explanation: CSU/DSU is used to convert digital signals from a router to a network circuit such as a T1.Cisco 200-120 Exam QUESTION NO: 22 What is the difference between a CSU/DSU and a modem? A. A CSU/DSU converts analog signals from a router to a phone line. a modem converts digital signals from a router to a phone line. A CSU/DSU converts digital signals from a router to a phone line. A CSU/DSU converts analog signals from a router to a leased line. a modem converts digital signals from a router to a leased line. C. A CSU/DSU converts digital signals from a router to a leased line. D." .www. QUESTION NO: 23 DRAG DROP Drag the cable type on the left to the purpose for which it is best suited on the right. B. a modem converts analog signals from a router to a phone line.

Server Group 2:Hub.) "Pass Any Exam.To connecttwo serial interfacesof 2 routers we useserial cable – To specify when we use crossover cable or straight-through cable. host to host…) QUESTION NO: 24 DRAG DROP Match the terms on the left with the appropriate OSI layer on the right. hub to host.actualtests. switch to hub. hub to server… and we use crossover cable to connect switch to switch. Host.www. switch to host. (Not all options are used.com 23 . we should remember: Group 1:Router." . Any Time. Switch One device in group 1 + One device in group 2: usestraight-through cable Two devices in the same group: usecrossover cable For example: we use straight-through cable to connect switch to router. router to router.Cisco 200-120 Exam Explanation: To remember which type of cable you should use. follow these tips: .

" .Cisco 200-120 Exam Answer: Explanation: "Pass Any Exam.www. Any Time.com 24 .actualtests.

actualtests.www." . Drag the correct frame and packet addresses to their place in the table.Cisco 200-120 Exam QUESTION NO: 25 DRAG DROP Refer to the exhibit. Any Time. Answer: Explanation: "Pass Any Exam.com 25 . PC_1 is exchanging packets with the FTP server. Consider the packets as they leave RouterB interface Fa0/1 towards RouterA.

PC_1 is sending packets to the FTP server.3333MAC 0000.com 26 .16.0c89. Drag the correct frame and packet address to their place in the table.actualtests.9999IP 172.7 QUESTION NO: 26 DRAG DROP Refer to the exhibit.0c89.16." . Consider the packets as they leave RouterA interface Fa0/0 towards RouterB. Answer: "Pass Any Exam.250IP 172.Cisco 200-120 Exam Source Mac AddressDestination Mac AddressSource IP addressDestination MAC address MAC 0000. Any Time.34.21.www.

Not all the names or descriptions will be used.Cisco 200-120 Exam Explanation: QUESTION NO: 27 DRAG DROP Refer to the exhibit." . Answer: Explanation: "Pass Any Exam. Complete this network diagram by dragging the correct device name or description to the correct location. Any Time.com 27 .www.actualtests.

actualtests. Any Time. "Pass Any Exam.www.com 28 .Cisco 200-120 Exam Topic 2. LAN Switching Technologies QUESTION NO: 28 Refer to the exhibit." .

To make a trunk link the port should configured as a trunk port. Any Time. "Pass Any Exam. An IP address must be configured for the port. not an access port. E.Cisco 200-120 Exam Switch port FastEthernet 0/24 on ALSwitch1 will be used to create an IEEE 802." .www. even though the proper cabling has been attached? A. The correct encapsulation type has not been configured. The port is currently configured for access mode.actualtests.com 29 . Based on the output shown. C.1Q-compliant trunk to another switch. VLANs have not been created yet. Answer: C Explanation: According to the output shown the switchport (layer 2 Switching) is enabled and the port is in access mode. D. what is the reason the trunk does not form. The “no shutdown” command has not been entered for the port. B.

Any Time. QUESTION NO: 29 Which port state is introduced by Rapid-PVST? A. QUESTION NO: 30 VLAN 3 is not yet configured on your switch. forwarding and disabled).actualtests. "Pass Any Exam. learning B. learning.dat. C." .com 30 . The command is accepted and you must configure the VLAN manually. listening.www. forwarding Answer: C Explanation: PVST+ is based on IEEE802. learning and forwarding) while STP has 5 port states (blocking. But PVST+ has only 3 port states (discarding. The port turns amber. discarding D.Cisco 200-120 Exam by using the following command: (Config-if)#switchport mode trunk. What happens if you set the switchport access vlan 3 command in interface configuration mode? A. The command is rejected. listening C. Answer: C Explanation: The “switchport access vlan 3” will put that interface as belonging to VLAN 3 while also updated the VLAN database automatically to include VLAN 3. D. So discarding is a new port state in PVST+. B. The command is accepted and the respective VLAN is added to vlan.1D Spanning Tree Protocol (STP).

Cisco switches support IEEE 802.1Q protocol interconnects VLANs between multiple switches. a method of VLAN trunking C.1Q for FastEthernet and Gigabit Ethernet interfaces. An 802. a network administrator can define a VLAN topology to span multiple physical devices. port priority number and MAC address Answer: A Explanation: The path cost to the root bridge is the most important value to determine which port will become the root port on each non-root switch.com 31 . the operation of VTP B. and servers. lowest port MAC address C. VTP revision number D. ISL and IEEE 802. QUESTION NO: 32 In a switched environment. a trunk link is created to accomplish this VLAN identification.Cisco 200-120 Exam QUESTION NO: 31 What value is primarily used to determine which port becomes the root port on each nonroot switch in a spanning-tree topology? A. an approach to wireless LAN communication D.actualtests. With 802. On Cisco switches. Any Time. The IEEE 802.1Q standard describe? A. In particular. path cost B. what does the IEEE 802. To accomplish this. one switch must send frames to another switch and indicate which VLAN a particular frame belongs to. routers. the port with lowest cost to the root bridge will become root port (on non-root switch).www. the process for root bridge selection E. highest port priority number E.1Q." .1Q are different methods of putting a VLAN identifier in a Layer 2 frame. VLAN pruning Answer: B Explanation: A broadcast domain must sometimes exist on more than one switch in the network.1Q trunk link provides VLAN identification by adding a 4-byte tag to an Ethernet Frame as it leaves a "Pass Any Exam.

Switch-1 will forward the data to its default gateway. Switch-1 will flood the data out all of its ports except the port from which the data originated.d056. Switch-1 needs to send data to a host with a MAC address of 00b0. Switch-1 will drop the data because it does not have an entry for that MAC address. Switch-1 will send an ARP request out all its ports except the port from which the data originated.com 32 . Any Time. D. Switches work as follows: "Pass Any Exam. Check the MAC address table of Switch1 and find that the MAC address of the host does not exist in the table.Cisco 200-120 Exam trunk port. Answer: B Explanation: This question tests the operating principles of the Layer 2 switch. What will Switch-1 do with this data? A." .efa4.www. QUESTION NO: 33 Refer to the exhibit. C. B. Switch1 will flood the data out all of its ports except the port from which the data originated to determine which port the host is located in.actualtests.

actualtests. It creates a VLAN 999 interface.1q is a Frame Relay protocol which belongs to VLAN. 802. STP (802. STP E. 802.1d B.1Q tagging can receive both tagged and untagged traffic. C. VTP C." . QUESTION NO: 34 What is the function of the command switchport trunk native vlan 999 on a Cisco Catalyst switch? A.www. It designates VLAN 999 as the default for all unknown tagged traffic.com 33 . Any Time. D. "Pass Any Exam. QUESTION NO: 35 Which two protocols are used by bridges and/or switches to prevent loops in a layer 2 network? (Choose two. It designates VLAN 999 for untagged traffic.1d) is used to prevent Layer 2 loops. It blocks VLAN 999 traffic from passing on the trunk. 802. Answer: B Explanation: Configuring the Native VLAN for Untagged Traffic A trunk port configured with 802. By default.D Explanation: This question is to examine the STP protocol.) A. SAP Answer: A. the switch forwards untagged traffic in the native VLAN configured for the port.1q D. B. The native VLAN is VLAN 1 by default.Cisco 200-120 Exam In output there is no MAC address of give host so switch floods to all ports except the source port.

1111) and B (MAC=0200. 32768: 22-33-44-55-66-77 C. QUESTION NO: 36 Which switch would STP choose to become the root bridge in the selection process? A. IP address utilization will be more efficient.0000.actualtests. 32769: 11-22-33-44-55-65 D. What is the effect of adding switch ports to a new VLAN on the switch? A. If two bridges have equal priority then the MAC addresses are compared. 32769: 22-33-44-55-66-78 Answer: A Explanation: The root bridge of the spanning tree is the bridge with the smallest (lowest) bridge ID.0000. 32768: 11-22-33-44-55-66 B. C. for example. 32768: 11-22-33-44-55-66 would be the bridge because it has a lower priority and MAC address.will become the target of being the root.com 34 . Any Time. More bandwidth will be required than was needed previously. More collision domains will be created.Cisco 200-120 Exam SAP is a concept of the OSI model. QUESTION NO: 37 A switch is configured with all ports assigned to VLAN 2 with full duplex FastEthernet to segment existing departmental traffic..Bridge priority + MAC (32768. the bridge ID contains both numbers combined together .www.0000.2222) both have a priority of 32768 then switch A will be selected as the root bridge. In this case. The Bridge priority default is 32768 and can only be configured in multiples of 4096(Spanning tree uses the 12 bits extended system ID). as if looking at a real number anything less than 32768. D. "Pass Any Exam. if switches A (MAC=0200. Each bridge has a configurable priority number and a MAC Address.0200.. the priority is compared first. B.1111)." . An additional broadcast domain will be created. To compare two bridge IDs.

D. re-addressing. and host reconfigurations is now a thing of the past. Port-based VLANs increase switch-port use efficiency. They provide numerousnetworkingbenefits and have become popular in the market.C. Broadcast storms can be mitigated by increasing the number of broadcast domains. adds. Inexpensive The popularity of VLANs is due to the fact that changes.Cisco 200-120 Exam Answer: D Explanation: Each VLAN creates its own broadcast domain. 1.actualtests.com 35 . Answer: A. E. thanks to 802. each port is a separate collision domain. thereby encourage better "Pass Any Exam. A more efficient use of bandwidth can be achieved allowing many logical networks to use the same network infrastructure.www. and moves can be attained simply by making necessary configurations on the VLAN port.D Explanation: Benefits of VLANs VLAN is a network structure which allows users to communicate while in different locations by sharing one multicast domain and a single broadcast. C. because network configuration can be made at ease when need arises.1Q trunks. G. it helps reduce administrative costs when users are geographically dispersed. Any Time. A more efficient use of bandwidth can be achieved allowing many physical groups to use the same network infrastructure. B. Better management A VLAN typically solve the scalability issues that exist in a large network by breaking the main domain into several VLAN groups or smaller broadcast configurations. VLANs make it easier for IT staff to configure new logical groups. 2. For instance. QUESTION NO: 38 What are three benefits of implementing VLANs? (Choose three. Broadcast storms can be mitigated by decreasing the number of broadcast domains. Time-consuming.Since this is a full duplex switch. because the VLANs all belong to the same broadcast domain. A higher level of network security can be reached by separating sensitive data traffic from other network traffic.) A." . thus increasing their size. F. thus reducing their size.

On the other hand. 4. Any Time. Segment multiple networks VLANs are typically used to achieve multiple purposes. Enhances performance A more efficient use of bandwidth can be achieved allowing many logical networks to use the same network infrastructure.Each VLAN creates a separate. 802.1D D. 802. 802. 3.Cisco 200-120 Exam control of multicast traffic as well as broadcast domains.com 36 .www.) A.1Q Answer: D Explanation: Dynamic Trunking Protocol (DTP) is a Cisco proprietary protocol for negotiating trunking on a link between two devices and for negotiating the type of trunking encapsulation (802.3ad B. They allow logical grouping of users by function.1w C. Better administration VLANs facilitate grouping of multiple geographical stations. Improves network security High-security can be positioned in different VLAN groups to ensure that non-members cannot receive their broadcasts. B. a router is added and workgroups relocated into centralized locations. the network does not have to be configured. When VLAN users move to another physical location. They are popularly used to reduce broadcast traffic.1Q) to be used." . 6. 802. They increase the size of collision domains. QUESTION NO: 39 Which IEEE standard protocol is initiated as a result of successful DTP completion in a switch over Fast Ethernet? A. QUESTION NO: 40 Which of the following are benefits of VLANs? (Choose three.actualtests. "Pass Any Exam. 5. smaller broadcast domain.

VLAN increases the size of broadcast domains but does not decrease the number of collision domains ->. It is also a big advantage of VLAN ->. F.com 37 . QUESTION NO: 41 Refer to the exhibit. Any Time. VLANs are useful but they are more complex and need more administration ->. They simplify switch administration.E Explanation: When using VLAN the number and size of collision domains remain the same ->. E. VLANs help minimize the incorrect configuration of VLANs so it enhances the security ofthe network ->.www.actualtests. VLANs increase the number of broadcast domains while decreasing the size of the broadcast domains which increase the utilization of the links. Answer: B. They increase the size of broadcast domains while decreasing the number of collision domains. A technician has installed SwitchB and needs to configure it for remote access from the management workstation connected to SwitchA. They increase the number of broadcast domains while decreasing the size of the broadcast domains.Cisco 200-120 Exam C. They can enhance network security.C. D. Which set of commands is required to "Pass Any Exam." . VLANs allow to group users by function.not by location or geography ->.

168.8. SwitchB(config)# ip route 192.254 255. QUESTION NO: 42 Which two states are the port states when RSTP has converged? (Choose two.255.168.168.0 SwitchB(config-if)# no shutdown B.168. we can recognize that the Management Workstation is in a different subnet from the SwitchB.168.254 255.255.255.252 255.8. SwitchB(config)# ip default-network 192.255. not to forward traffic sent by devices connected to the switch. SwitchB(config)# interface FastEthernet 0/1 SwitchB(config-if)# ip address 192.Cisco 200-120 Exam accomplish this task? A.8.255.0 SwitchB(config-if)# no shutdown C. listening C.255.0 SwitchB(config-if)# no shutdown Answer: C Explanation: To remote access to SwitchB.8." .8.168.com 38 .) A.255. This default gateway is used to forward traffic originating from the switch only. In the exhibit.255. you must configure at least one default gateway.8. SwitchB(config)# ip default-gateway 192.168. disabled "Pass Any Exam.8.0 SwitchB(config-if)# ip default-gateway 192.255.8. we often use VLAN 1 as the management VLAN (but in fact it is not secure). Any Time. forwarding E.www.168.255.255.0 SwitchB(config)# interface FastEthernet 0/1 SwitchB(config-if)# ip address 192.0 SwitchB(config-if)# no shutdown D.255. discarding B.252 255.0 SwitchB(config-if)# no shutdown E.255. Traditionally. For intersubnetwork communication to occur.actualtests.252 255. learning D. SwitchB(config)# interface vlan 1 SwitchB(config-if)# ip address 192.8.252 255.254 SwitchB(config)# interface vlan 1 SwitchB(config-if)# ip address 192. it must have a management IP address on a VLAN on that switch.254 SwitchB(config)# interface vlan 1 SwitchB(config-if)# ip address 192.255.252 255.168.

STP (802.actualtests.shtml #states QUESTION NO: 43 "Pass Any Exam.com 39 .1D) Port State RSTP (802. Any Time.www.1w discarding state. and listening states are merged into a unique 802.com/en/US/tech/tk389/tk621/technologies_white_paper09186a0080094cfa." . blocking.1D disabled.D Explanation: There are only three port states left in RSTP that correspond to the three possible operational states.Cisco 200-120 Exam Answer: A.1w) Port State Is Port Included in Active Topology? Is Port Learning MAC Addresses? Disabled Discarding No No Blocking Discarding No No Listening Discarding Yes No Learning Learning Yes Yes Forwarding Forwarding Yes Yes Reference: http://www. The 802.cisco.

) A. show interface interface C. show interface switchport Answer: A.actualtests.www. show ip interface brief D.E Explanation: Example output from these two commands: SW3#show interface trunk Port Mode Encapsulation Status Native vlan Fa0/19 auto n-802.Cisco 200-120 Exam Which two commands can be used to verify a trunk link configuration status on a given Cisco switch interface? (Choose two. On Access Mode VLAN: 1 (default) Trunking Native Mode VLAN: 1 (default) Voice VLAN: none QUESTION NO: 44 Which command enables RSTP on a switch? "Pass Any Exam.com 40 . show interface vlan E.1q trunking 1 Fa0/21 auto n-802.1q trunking 1 Fa0/20 auto n-802. Any Time.1q trunking 1 Port Vlans allowed on trunk Fa0/19 1-4094 Fa0/20 1-4094 Fa0/21 1-4094 Fa0/22 1-4094 SW1#show interface fast 0/2 switchport Name: Fa0/2 Switchport: Enabled Administrative Mode: dynamic desirable Operational Mode: down Administrative Trunking Encapsulation: dot1q Negotiation of TrunkinG." .1q trunking 1 Fa0/22 auto n-802. show interface trunk B.

called Rapid-PVST+.www.1w protocol is an IEEE open implementation. spanning-tree uplinkfast B. To activate the Rapid-PVST+ protocol: switch(config)#spanning-tree mode rapid-pvst QUESTION NO: 45 Refer to the exhibit." .com 41 . spanning-tree mode mst Answer: B Explanation: Rapid Spanning Tree Protocol (RSTP) is an enhancement of the original STP 802. The RSTP 802. "Pass Any Exam. Any Time. spanning-tree mode rapid-pvst C.Cisco 200-120 Exam A.actualtests. spanning-tree backbonefast D.1D protocol. that includes the benefits of its Per-VLAN spanning tree protocols. Cisco has its own proprietary implementation of RSTP.

Based on the output shown. The link between the switches is configured in the wrong VLAN. Frame Relay D. D. B.Cisco 200-120 Exam All switch ports are assigned to the correct VLANs. Which WAN protocol is being used? A. Answer: C Explanation: In order to pass traffic from VLANs on different switches.www. PPP Answer: C Explanation: "Pass Any Exam. The link between the switches needs to be configured as a trunk.com 42 . HDLC C. ATM B. E." . what is the most likely problem? A.actualtests. Any Time. VTP is not configured to carry VLAN information between the switches. QUESTION NO: 46 Refer to the exhibit. the connections between the switches must be configured as trunk ports. The access link needs to be configured in multiple VLANs. C. Switch IP addresses must be configured in order for traffic to be forwarded between the switches. but none of the hosts connected to SwitchA can communicate with hosts in the same VLAN connected to SwitchB.

" .com 43 .1d Spanning Tree. C. we can know that the data link protocol used in this network is the Frame Relay protocol. we must assume that there is a shorter path to the root bridge elsewhere. According to the information provided in the exhibit. what is the reason that interface FastEthernet 0/10 is not the root port for VLAN 2? A. This switch has a lower bridge ID for VLAN 2 than the elected designated switch. This switch interface has a higher path cost to the root bridge than another in the topology. QUESTION NO: 48 Why will a switch never learn a broadcast address? "Pass Any Exam.Cisco 200-120 Exam This question is to examine the show int command. This switch has more than one interface connected to the root network segment in VLAN 2.www. This switch is running RSTP while the elected designated switch is running 802. Any Time. D.actualtests. “LMI enq sent…” QUESTION NO: 47 Refer to the exhibit. Given the output shown from this Cisco Catalyst 2950. B. Answer: C Explanation: Since the port is in the blocked status.

A broadcast frame is never forwarded by a switch. it will never learn the broadcast address. It has more than one interface that is connected to the root network segment. C. It has a higher bridge ID than the elected root bridge. It is running RSTP while the elected root bridge is running 802. D. QUESTION NO: 49 Refer to the exhibit. Answer: D Explanation: "Pass Any Exam. B.1d spanning tree. B.Cisco 200-120 Exam A. C. D. It has a higher MAC address than the elected root bridge.com 44 ." .actualtests. Answer: C Explanation: Switches dynamically learn MAC addresses based on the source MAC addresses that it sees. E. Any Time.www. Why has this switch not been elected the root bridge for VLAN1? A. Broadcasts only use network layer addressing. A broadcast address will never be the source address of a frame. and since a broadcast is never the source. Broadcast frames are never sent to switches. Broadcast addresses use an incorrect format for the switching table.

modified.Cisco 200-120 Exam The root bridge is determined by the lowest bridge ID.3u Answer: B. QUESTION NO: 51 Assuming the default switch configuration. 2 through 1001 C. modified or removed. most network engineers prefer to use 802. VTP B.) A.1qor the Cisco proprietary ISL. 2 through 1005 Answer: B Explanation: Explanation VLAN 1 is the default VLAN on Cisco switch. the industry standard 802. It always exists and cannot be added. ISL E.actualtests.D Explanation: Cisco switches can use two different encapsulation types for trunks. 1 through 1002 D. which VLAN range can be added. and this switch has a bridge ID priority of 32768. 1 through 1001 B. QUESTION NO: 50 Which two link protocols are used to carry multiple VLANs over a single link? (Choose two.1q since it is standards based and will interoperate with other vendors. IGP D.1q C. which is higher than the roots priority of 20481.Generally. VLANs 1002-1005 are default VLANs for FDDI & Token Ring and they can’t be deleted or used for "Pass Any Exam.com 45 . 802." . Any Time. and removed on a Cisco switch? A. 802.www.

actualtests. so incoming frames with unknown destinations are only transmitted to ports that reside in the same VLAN as the incoming frame. Ports between switches should be configured in access mode so that VLANs can span across the ports. QUESTION NO: 52 Which statement about VLAN operation on Cisco Catalyst switches is true? A. Broadcast and multicast frames are retransmitted to ports that are configured on different VLAN. B. "Pass Any Exam. C. Any Time. D.Cisco 200-120 Exam Ethernet.1Q trunk. the VLAN ID can be determined from the source MAC address and the MAC address table. When a packet is received from an 802. Unknown unicast frames are retransmitted only to the ports that belong to the same VLAN.com 46 .www. Answer: B Explanation: Each VLAN resides in its own broadcast domain." .

D Explanation: This question is to check the spanning tree election problem. "Pass Any Exam.C. select the root bridge. Which three ports will be STP designated ports if all the links are operating at the same bandwidth? (Choose three. Based on the exhibit above. The three switches in the figure all have the default priority. Next. which can be accomplished by comparing the bridge ID. The smallest will be selected as the root port.Fa0/0 B. select the Designated Port.Fa0/1 E. Any Time. Select the root port on the non-root bridge. Switch C .actualtests.Cisco 200-120 Exam QUESTION NO: 53 Refer to the topology shown in the exhibit. it is easy to find that SwitchB is the root bridge. which can be completed through comparing root path cost. 2. then compare the BID.) A.com 47 .Fa0/1 Answer: B. if the costs happen to be the same. still the smallest will be selected. Switch B . 1. First. the smallest will be selected.Fa0/0 D.www. Switch C . Switch A . Bridge-id= bridge priority + MAC address. we can find DP on each link. because it has the smallest MAC address.Fa0/1 C. Each link has a DP.Fa0/0 F. 3. First. Switch A . The DP on the link between SwitchA and SwitchC is SwitchA'Fa0/1. compare the path cost. Switch B . so we should compare the MAC address." .

Any Time.com 48 .actualtests. SwitchX(config)# interface fastethernet 0/1 SwitchX(config-if)# switchport mode trunk SwitchX(config-if)# switchport trunk vlan 1 SwitchX(config-if)# switchport trunk vlan 10 SwitchX(config-if)# switchport trunk vlan 20 Answer: B "Pass Any Exam.Cisco 200-120 Exam QUESTION NO: 54 Refer to the exhibit. SwitchX(config)# interface fastethernet 0/1 SwitchX(config-if)# switchport mode access SwitchX(config-if)# switchport access vlan 1 D. SwitchX(config)# interface fastethernet 0/1 SwitchX(config-if)# switchport mode trunk C. How should the FastEthernet0/1 ports on the switches that are shown in the exhibit be configured to allow connectivity between all devices? A. The ports only need to be connected by a crossover cable." . B.www.

the connection between the switches must be a trunk. A frame on VLAN 1 on switch S1 is sent to switch S2 where the frame is received on VLAN 2. trunk mode mismatches B. the individual VLANs should not be listed over that trunk interface.The “switchport mode trunk” command is all that is needed.Cisco 200-120 Exam Explanation: IN order for multiple VLANs to cross switches. Any Time.www.com 49 .actualtests." . allowing only VLAN 2 on the destination "Pass Any Exam. QUESTION NO: 55 Refer to the exhibit. What causes this behavior? A.

C.B. RSTP significantly reduces topology reconverging time after a link failure. RSTP is typically able to respond less than 10 seconds of a physical link failure. Answer: A. * Backup port– A backup/redundant path to a segment where another bridge port already connects. which significantly reduces the convergence time after a topology change occurs in the network. RSTP also uses the STP proposal-agreement sequence. The alternative port moves to the forwarding state if there is a failure on the designated port for the segment.com 50 . F.D Explanation: One big disadvantage of STP is the low convergence which is very important in switched network.Cisco 200-120 Exam C." .1w introduced an evolution of the Spanning Tree Protocol: Rapid Spanning Tree Protocol (RSTP). To overcome this problem. D. Any Time. the native VLANs are different so although S1 will tag it as VLAN 1 it will be received by S2. This path is different than using the root port. learning.In this case. The backup port applies only when a single switch has two links to the same segment "Pass Any Exam.actualtests. RSTP port states are blocking. native VLAN mismatches D. E. in 2001. VLANs that do not correspond to a unique IP subnet Answer: C Explanation: Untagged frames are encapsulated with the native VLAN. B.www. RSTP provides a faster transition to the forwarding state on point-to-point links than STP does. QUESTION NO: 56 Which three statements about RSTP are true? (Choose three. or forwarding. These ports are allowed to immediately enter the forwarding state rather than passively wait for the network to converge. While STP can take 30 to 50 seconds to transit from a blocking state to a forwarding state. the IEEE with document 802. RSTP uses the same timer-based process as STP on point-to-point links. RSTP bridge port roles: * Root port– A forwarding port that is the closest to the root bridge in terms of path cost * Designated port– A forwarding port for every LAN segment * Alternate port– A best alternate path to the root bridge. RSTP expands the STP port roles by adding the alternate and backup roles. RSTP works by adding an alternative port and a backup port compared to STP. discarding.) A.

One of the most important fields in BPDUs is the Bridge Priority in which the MAC address is used to elect the Root Bridge -> RSTP operatesat Layer 2 – Data Link layer ->. destination IP address E. destination MAC address Answer: F Explanation: When a frame is received. * Disabled port– Not strictly part of STP.If the address is unknown. source switch port D.www. the frame is broadcast on all "Pass Any Exam. the switch must be attached to a hub. destination port address F.actualtests. network D. QUESTION NO: 57 At which layer of the OSI model is RSTP used to prevent loops? A. source MAC address B." .com 51 . transport Answer: B Explanation: RSTP and STP operate on switches and are based on the exchange of Bridge Protocol Data Units (BPDUs) between switches. To have two links to the same collision domain. physical B. Any Time. data link C.Cisco 200-120 Exam (collision domain). the switch looks at the destination hardware address and finds the interface ifit is in its MAC address table. QUESTION NO: 58 What does a Layer 2 switch use to decide where to forward a received frame? A. a network administrator can manually disable a port. source IP address C.

596d. QUESTION NO: 59 Refer to the exhibit. not of the root bridge. "Pass Any Exam.1580 is the MAC address of this switch.com 52 .actualtests. The MAC address of the root bridge is 0017.2a00 ->. Answer: D Explanation: Only non-root bridge can have root port.596d. Which statement is true? A. D. The Fa0/11 role confirms that SwitchA is the root bridge for VLAN 20.1580.www." . B. because not all of the interface roles are designated. SwitchA has one Root port and 1 Alternative port so it is not the root bridge. The MAC address of the root bridge is 0017. From the output we learn this switch is running Rapid STP. Fa0/11 is the root port so we can confirm this switch is not the root bridge ->. not PVST ->. SwitchA is not the root bridge. 0017. VLAN 20 is running the Per VLAN Spanning Tree Protocol. All of the interface roles of the root bridge are designated.Cisco 200-120 Exam interfaces except the one it was received on. C. Any Time.596d.

QUESTION NO: 61 Which command can be used from a PC to verify the connectivity between hosts that connect through a switch in the same LAN? A.C Explanation: AVLAN is a switched network that is logically segmented on an organizational basis. arp address "Pass Any Exam. dedicated bandwidth C. project teams.www. LAN Segmentation VLANs allow logical network topologies to overlay the physical switched infrastructure such that any arbitrary collection of LAN ports can be combined into an autonomous user group or community of interest. The technology logically segments the network into separate Layer 2 broadcast domains whereby packets are switched between ports designated to be within the same VLAN.com 53 . By containing traffic originating on a particular LAN only to other LANs in the same VLAN. switched virtual networks avoid wasting bandwidth. Any Time.) A.actualtests. by functions. High-security users can be grouped into a VLAN." . tracert address C. allows switches to route traffic between subinterfaces E. added security B. contains collisions Answer: A. or applications rather than on a physical or geographical basis.Cisco 200-120 Exam QUESTION NO: 60 Which two benefits are provided by creating VLANs? (Choose two. provides segmentation D. Security: VLANs also improve security by isolating groups. ping address B. possible on the same physical segment. traceroute address D. and no users outside that VLAN can communicate with them.

routing loops. split horizon C. switching loops. STP Answer: F Explanation: The Spanning-Tree Protocol (STP) prevents loops from being formed when switches or bridges are interconnected via multiple paths. Spanning-Tree Protocol implements the 802. QUESTION NO: 62 Based on the network shown in the graphic Which option contains both the potential networking problem and the protocol or setting that should be used to prevent the problem? A.Cisco 200-120 Exam Answer: A Explanation: ICMP pings are used to verify connectivity between two IP hosts. routing loops." . switching loops.actualtests. STP F.com 54 .www. Any Time. routing loops.1D IEEE algorithm by exchanging BPDU messages with other switches to detect loops. VTP E. split horizon D. hold down timers B. and then removes "Pass Any Exam.Traceroute is used to verify the router hop path traffic will take but in this case since the hosts are in the same LAN there will be no router hops involved. switching loops.

Router1 needs more LAN interfaces to accommodate the VLANs that are shown in the exhibit. This algorithm guarantees that there is one and only one active path between two network devices. Which two statements are true about interVLAN routing in the topology that is shown in the exhibit? (Choose two. Host E and host F use the same IP gateway address. Router1 and Switch2 should be connected via a crossover cable.Cisco 200-120 Exam the loop by shutting down selected bridge interfaces.www. Any Time. for any trunk to be formed. C." .F Explanation: In order for multiple VLANs to connect to a single physical interface on a Cisco router. QUESTION NO: 63 Refer to the exhibit. D. B.com 55 .actualtests. The FastEthernet 0/0 interface on Router1 must be configured with subinterfaces. subinterfaces must be used. both ends of the trunk must agree on the "Pass Any Exam.This is known as the router on a stick configuration.Also. Router1 will not play a role in communications between host A and host D.) A. one for each VLAN. F. Answer: D. E. The FastEthernet 0/0 interface on Router1 and the FastEthernet 0/1 interface on Switch2 trunk ports must be configured using the same encapsulation type.

E.com 56 .1q or ISL. QUESTION NO: 65 Refer to the exhibit." . C. 802.1Q protocol? (Choose two. or Virtual Bridged Local Area Networks protocol.actualtests. and thus requires that the FCS be recomputed. mainly stipulates the realization of the VLAN. B. It is used exclusively for tagging VLAN frames and does not address network reconvergence following switched network topology changes. It is a Layer 2 messaging protocol which maintains VLAN configurations across networks.) A. It includes an 8-bit field which specifies the priority of a frame.E Explanation: 802. Answer: B. D. Non-marked frame carries no VLAN identification information.3 frame header. Any Time.www.1Q frame relay supports two types of frame: marked and non-marked.Cisco 200-120 Exam encapsulation type. It is a trunking protocol capable of carrying untagged frames. QUESTION NO: 64 Which two of these are characteristics of the 802. It modifies the 802.1Q is a standardized relay method that inserts 4 bytes field into the original Ethernet frame and re-calculate the FCS. "Pass Any Exam.1Q protocol. 802. so each one must be configured for 802.

Gi0/1. Fa0/2.Cisco 200-120 Exam Each of these four switches has been configured with a hostname. Fa0/2. SwitchA. SwitchA. the lower the value of its cost. Gi0/2. Switch C has lowest MAC address so it will become root bridge and 2 of its ports (Fa0/1 & Fa0/2) will be designated ports.F Explanation: The question says “no other configuration changes have been made” so we can understand these switches have the same bridge priority. Because SwitchC is the root bridge so the 2 ports nearest SwitchC on SwitchA (Fa0/1) and SwitchD (Gi0/2) will be root ports. SwitchD." . root Answer: A.B. designated B. root D. Now we come to the most difficult part of this question: SwitchB must have a root port so which port will it choose? To answer this question we need to know about STP cost and port cost. SwitchB. No other configuration changes have been made. Fa0/1.com 57 . root C. SwitchC. Below are the cost values you should memorize: "Pass Any Exam. as well as being configured to run RSTP. SwitchB.actualtests. In general. “cost” is calculated based on bandwidth of the link.) A. root F.www. Which three of these show the correct RSTP port roles for the indicated switches and interfaces? (Choose three. designated E. Any Time. Gi0/2. The higher the bandwidth on a link.

" . The receiving switch willadd its local port cost value to the costin the BPDU.Cisco 200-120 Exam SwitchB will choose the interface with lower cost to the root bridge as the root port so we must calculate the cost on interface Gi0/1 & Gi0/2 of SwitchB to the root bridge. Switch D adds 4 (the cost value of "Pass Any Exam.actualtests. One more thing to notice is that a root bridge always advertises the cost to the root bridge (itself) with an initial value of 0. Any Time. Now let’s have a look at the topology again SwitchC advertises its cost to the root bridge with a value of 0.com 58 . This can be calculated from the “cost to the root bridge” of each switch becausea switch always advertises its cost to the root bridgein its BPDU.www.

www.Cisco 200-120 Exam 1Gbps link) and advertises this value (4) to SwitchB. The same process happens for SwitchA and SwitchB learns that it can reach SwitchC via Gi0/2 with a total cost of 23 -> Switch B chooses Gi0/1 as its root port ->. Any Time. "Pass Any Exam." . SwitchB adds another 4 and learns that it can reach SwitchC via Gi0/1 port with a total cost of 8. Below summaries all the port roles of these switches: + DP: Designated Port (forwarding state) + RP: Root Port (forwarding state) + AP: Alternative Port (blocking state) QUESTION NO: 66 Refer to the exhibit. It is rather easy as the MAC address of SwitchA is lower than that of SwitchB so Fa0/2 of SwitchA will be designated port while Gi0/2 of SwitchB will be alternative port.actualtests.com 59 . Now our last task is to identify the port roles of the ports between SwitchA & SwitchB.

Any Time. Answer: D Explanation: Ping was successful form host B to other hosts because of intervlan routing configured on router. However. B. host A is unavailable. D. The switch needs an appropriate default gateway assigned. "Pass Any Exam. The administrator's attempt to telnet to the switch from host B fails. but pings to the other two hosts are successful. What is the issue? A.actualtests." .com 60 . Host B needs to be assigned an IP address in VLAN 1. The switch interfaces need the appropriate IP addresses assigned. Since VLAN1 interface is already configure on switch Host A was able to telnet switch. E. C.www. But to manage switch via telnet the VLAN32 on the switch needs to be configured interface vlan32 along with ip address and its appropriate default-gateway address. The switch interface connected to the router is down. Host B and the switch need to be in the same subnet.Cisco 200-120 Exam The network administrator normally establishes a Telnet session with the switch from host A. QUESTION NO: 67 Refer to the exhibit.

Cisco 200-120 Exam

Which switch provides the spanning-tree designated port role for the network segment that
services the printers?
A. Switch1
B. Switch2
C. Switch3
D. Switch4
Answer: C
Explanation:
Printers are connected by hubs. Decide the switch that provides the spanning-tree designated port
role between Switch3 and Switch4. They have the same priority 32768. Compare their MAC
addresses. Switch3 with a smaller MAC address will provide a designated port for printers.

QUESTION NO: 68
What is one benefit of PVST+?
A. PVST+ supports Layer 3 load balancing without loops.
B. PVST+ reduces the CPU cycles for all the switches in the network.
C. PVST+ allows the root switch location to be optimized per VLAN.
D. PVST+ automatically selects the root bridge location, to provide optimized bandwidth usage.

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61

Cisco 200-120 Exam
Answer: C
Explanation:
The PVST+ provides Layer 2 load-balancing for the VLAN on which it runs. You can create
different logical topologies by using the VLANs on your network to ensure that all of your links are
used but that no one link is oversubscribed. Each instance of PVST+ on a VLAN has a single root
switch. This root switch propagates the spanning-tree information associated with that VLAN to all
other switches in the network. Because each switch has the same information about the network,
this process ensures that the network topology is maintained and optimized per VLAN.
Reference:
http://www.cisco.com/en/US/docs/switches/lan/catalyst3750x_3560x/software/release/12.2_55_se
/configuration/guide/swstp.html

QUESTION NO: 69
Which three are valid modes for a switch port used as a VLAN trunk? (Choose three.)
A. transparent
B. auto
C. on
D. desirable
E. blocking
F. forwarding
Answer: B,C,D
Explanation:
These are the different types of trunk modes:

QUESTION NO: 70
Refer to Exhibit:

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62

Cisco 200-120 Exam

How many broadcast domains are shown in the graphic assuming only the default VLAN is
configured on the switches?
A. one
B. two
C. six
D. twelve
Answer: A
Explanation:
Only router can break up broadcast domains but in this exhibit no router is used so there is only 1
broadcast domain.
For your information, there are 7 collision domains in this exhibit (6 collision domains between
hubs & switches + 1 collision between the two switches).

QUESTION NO: 71
Which three of these statements regarding 802.1Q trunking are correct? (Choose three.)
A. 802.1Q native VLAN frames are untagged by default.
B. 802.1Q trunking ports can also be secure ports.
C. 802.1Q trunks can use 10 Mb/s Ethernet interfaces.
D. 802.1Q trunks require full-duplex, point-to-point connectivity.
E. 802.1Q trunks should have native VLANs that are the same at both ends.
Answer: A,C,E
Explanation:

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63

Cisco 200-120 Exam
By default, 802.1Q trunk defined Native VLAN in order to forward unmarked frame. Switches can
forward Layer 2 frame from Native VLAN on unmarked trunks port. Receiver switches will transmit
all unmarked packets to Native VLAN. Native VLAN is the default VLAN configuration of port. Note
for the 802.1Q trunk ports between two devices, the same Native VLAN configuration is required
on both sides of the link. If the Native VLAN in 802.1Q trunk ports on same trunk link is properly
configured, it could lead to layer 2 loops. The 802.1Q trunk link transmits VLAN information
through Ethernet.

QUESTION NO: 72
Refer to the exhibit.

The output that is shown is generated at a switch. Which three statements are true? (Choose
three.)
A. All ports will be in a state of discarding, learning, or forwarding.
B. Thirty VLANs have been configured on this switch.
C. The bridge priority is lower than the default value for spanning tree.
D. All interfaces that are shown are on shared media.
E. All designated ports are in a forwarding state.
F. This switch must be the root bridge for all VLANs on this switch.
Answer: A,C,E
Explanation:
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64

Cisco 200-120 Exam
From the output, we see that all ports are in designated role (forwarding state).
The command “show spanning-tree vlan 30 only shows us information about VLAN 30. We don’t
know how many VLAN exists in this switch ->.
The bridge priority of this switch is 24606 which is lower than the default value bridge priority
32768.
All three interfaces on this switch have the connection type “p2p”, which means Point-to-point
environment – not a shared media.
The only thing we can specify is this switch is the root bridge for VLAN 3o but we cannot
guarantee it is also the root bridge for other VLANs.

QUESTION NO: 73
Refer to the exhibit.

At the end of an RSTP election process, which access layer switch port will assume the discarding
role?
A. Switch3, port fa0/1
B. Switch3, port fa0/12
C. Switch4, port fa0/11
D. Switch4, port fa0/2
E. Switch3, port Gi0/1
F. Switch3, port Gi0/2
Answer: C
Explanation:
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65

Cisco 200-120 Exam
In this question, we only care about the Access Layer switches (Switch3 & 4). Switch 3 has a
lower bridge ID than Switch 4 (because the MAC of Switch3 is smaller than that of Switch4) so
both ports of Switch3 will be in forwarding state. The alternative port will surely belong to Switch4.
Switch4 will need to block one of its ports to avoid a bridging loop between the two switches. But
how does Switch4 select its blocked port? Well, the answer is based on theBPDUs it receives from
Switch3.A BPDU is superior to another if it has:
1. A lower Root Bridge ID
2. A lower path cost to the Root
3. A lower Sending Bridge ID
4. A lower Sending Port ID
These four parameters are examined in order. In this specific case, all the BPDUs sent by Switch3
have the same Root Bridge ID, the same path cost to the Root and the same Sending Bridge ID.
The only parameter left to select the best one is the Sending Port ID (Port ID = port priority + port
index). In this case the port priorities are equal because they use the default value, so Switch4 will
compare port index values, which are unique to each port on the switch, and because Fa0/12 is
inferior to Fa0/1, Switch4 will select the port connected with Fa0/1 (of Switch3) as its root port and
block the other port -> Port fa0/11 of Switch4 will be blocked (discarding role).

QUESTION NO: 74
Which term describes a spanning-tree network that has all switch ports in either the blocking or
forwarding state?
A. converged
B. redundant
C. provisioned
D. spanned
Answer: A
Explanation:
Spanning Tree Protocol convergence (Layer 2 convergence) happens when bridges and switches
have transitioned to either the forwarding or blocking state. When layer 2 is converged, root bridge
is elected and all port roles (Root, Designated and Non-Designated) in all switches are selected.

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66

but also defines status of 3 ports: discarding status.C. RSTP is compatible with the original IEEE 802. D. It retains most of the parameters. B. forwarding status. transparent B. desirable E. referred to as RSTP) will speed up significantly the speed to re-calculate spanning tree.1D STP. Answer: B. C. "Pass Any Exam. learning status. RSTP defines new port roles. and makes no changes.D Explanation: These are the different types of trunk modes: QUESTION NO: 76 Which two of these statements regarding RSTP are correct? (Choose two.Cisco 200-120 Exam QUESTION NO: 75 What are the possible trunking modes for a switch port? (Choose three. RSTP defines no new port states. auto C. on D. forwarding Answer: B. not revolution. rapid spanning tree protocol (IEEE802. E.com 67 .E Explanation: When network topology changes." . Any Time.1D STP. RSTP not only defines the role of other ports: alternative port and backup port. RSTP is a proprietary implementation of IEEE 802.actualtests.) A.www. RSTP is 802.) A. client F.1W.1D standard evolution. RSTP cannot operate with PVST+.

"Pass Any Exam. C.actualtests. FastEthernet0/1 is configured as a trunk link." . F. B.www. Answer: B.Cisco 200-120 Exam QUESTION NO: 77 Refer to the exhibit. and these MAC are in different VLAN. Any Time.com 68 . E. FastEthernet0/5 has statically assigned MAC addresses. A hub is connected directly to FastEthernet0/5. Which two statements are true of the interfaces on Switch1? (Choose two. From this we know thatFa0/1 is the trunk interface.) A. FastEthernet0/1 is connected to a host with multiple network interface cards. Multiple devices are connected directly to FastEthernet0/1. D. Fa0/1 is connected to Switch2. Interface FastEthernet0/2 has been disabled. seven MAC addresses correspond to Fa0/1.E Explanation: Carefully observe the information given after command show.

VLANs establish broadcast domains in switched networks. more commonly referred to as a BID. Based on the output shown. VLANs provide a low-latency internetworking alternative to routed networks. QUESTION NO: 79 What are three advantages of VLANs? (Choose three.www.actualtests. Therefore. the BID would be 32768:11-22-33-44-55-66.com 69 . This BID is a combination of a default priority value and the switch's MAC address. which switch is elected as the root bridge for the spanning-tree instance of VLAN 1? A. the switch with the lowest MAC address C. B. C. The lowest BID will win the election process. with the priority value listed first. Any Time.) A. the switch with the lowest IP address Answer: B Explanation: Each switch in your network will have a Bridge ID Priority value. the switch with the highest IP address D.Cisco 200-120 Exam From the information given by show cdp neighbors we find that there is no Fa0/5 in CDP neighbor. For example. Thus we know that Fa0/5 is connected to a Hub. Assuming the default switch configuration. the switch with the highest MAC address B. there are multiple MAC addresses from different VLANs attached tothe FastEthernet 0/1 interface. if a Cisco switch has the default priority value of 32. "Pass Any Exam. VLANs utilize packet filtering to enhance network security. if the switch priority is left at the default.Only trunks are able to pass information from devices in multiple VLANs. However.768 and a MAC address of 1122-33-44-55-66. QUESTION NO: 78 Three switches are connected to one another via trunk ports. F0/5 corresponds to two MAC addresses in the same VLAN. the MAC address is the deciding factor in the root bridge election. D." . VLANs provide a method of conserving IP addresses in large networks.

An 802. VLAN 10 is chosen as native. not physical location. Packet filtering is a function of firewall instead of VLAN. QUESTION NO: 80 Cisco Catalyst switches CAT1 and CAT2 have a connection between them using ports FA0/13. QUESTION NO: 81 Refer to the exhibit. VLAN 10 on CAT1 and VLAN 1 on CAT2 will send tagged frames. This makes network more flexible and scalable. “VLAN mismatch” can cause traffic from one vlan to leak into another vlan. D.1Q trunk is configured between the two switches. F.www.com 70 . but on CAT2 the native VLAN is not specified.1Q link. VLAN 10 on CAT1 and VLAN 1 on CAT2 will send untagged frames. A native VLAN mismatch error message will appear. or changing hosts on the network.E. 802. B. moving. because it can better control layer2 broadcast to improve network security. Any Time.Cisco 200-120 Exam E. VLANs can greatly simplify adding.1Q giants frames could saturate the link.actualtests. "Pass Any Exam. On CAT1. Answer: C Explanation: A “native VLAN mismatch” error will appear by CDP if there is a native VLAN mismatch on an 802.F Explanation: VLAN technology is often used in practice. VLANs allow access to network services based on department." . What will happen in this scenario? A. C. Answer: A.

What conclusions can be made about this design? A. The router interfaces must be encapsulated with the 802.actualtests. with all hosts configured in the same VLAN. D.www. The router will not accept the addressing scheme. C. If two interfaces are in the same network.Cisco 200-120 Exam A network technician is asked to design a small network with redundancy. The exhibit represents this design. Answer: C Explanation: Each interface on a router must be in a different network. E. the router will not accept it and show error when the administrator assigns it. QUESTION NO: 82 Refer to the exhibit.com 71 . Spanning-tree will need to be used. "Pass Any Exam. The connection between switches should be a trunk.1Q protocol. Any Time. This design will function as intended. B." .

C. What could be the problem? A.actualtests.Cisco 200-120 Exam A technician is troubleshooting host connectivity issues on the switches. A router is required for hosts on SW11 in VLANs 10 and 15 to communicate with hosts in the same VLAN on Sw12. The hosts in VLANs 10 and 15 on Sw11 are unable to communicate with hosts in the same VLANs on Sw12. "Pass Any Exam. The Fa0/1 port is not operational on one of the switches. Answer: B Explanation: In order for hosts in the same VLAN to communicate with each other over multiple switches." .www. E. At least one port needs to be configured in VLAN 1 for VLANs 10 and 15 to be able to communicate. those switches need to be configured as trunks on their connected interfaces so that they can pass traffic from multiple VLANs.com 72 . Hosts in the Admin VLAN are able to communicate. The link connecting the switches has not been configured as a trunk. Any Time. B. The port-to-VLAN assignments are identical on the two switches. D. Port FastEthernet 0/1 needs to be configured as an access link on both switches.

so the next step would be to check the duplex setting of the port on the other switch.A mismatched trunk encapsulation would not result in input errors and CRC errors. Any Time. Check the duplex mode for SwitchC's fa0/1 port. Answer: C Explanation: Here we can see that this port is configured for full duplex. QUESTION NO: 84 Refer to the exhibit. what should the network administrator's next action be? A. Check the duplex mode for SwitchA's fa0/2 port.www. C.actualtests.com 73 . B.Cisco 200-120 Exam QUESTION NO: 83 Refer to the exhibit. Check the trunk encapsulation mode for SwitchC's fa0/1 port." . D. Check the trunk encapsulation mode for SwitchA's fa0/2 port. "Pass Any Exam. Given this output for SwitchC.

com 74 .Cisco 200-120 Exam A network administrator is configuring an EtherChannel between SW1 and SW2.www. interface FastEthernet 0/1 channel-group 1 mode desirable switchport trunk encapsulation dot1q switchport mode trunk interface FastEthernet 0/2 channel-group 1 mode desirable switchport trunk encapsulation dot1q switchport mode trunk "Pass Any Exam. The SW1 configuration is shown.actualtests. interface FastEthernet 0/1 channel-group 1 mode active switchport trunk encapsulation dot1q switchport mode trunk interface FastEthernet 0/2 channel-group 1 mode active switchport trunk encapsulation dot1q switchport mode trunk B. Any Time." . interface FastEthernet 0/1 channel-group 2 mode auto switchport trunk encapsulation dot1q switchport mode trunk interface FastEthernet 0/2 channel-group 2 mode auto switchport trunk encapsulation dot1q switchport mode trunk C. What is the correct configuration for SW2? A.

duplex Answer: B Explanation: For an etherchannel to come up. PagP modes: auto | Desirable LACP modes: active | pasive QUESTION NO: 85 What parameter can be different on ports within an EtherChannel? A. trunk encapsulation D.com 75 ." . QUESTION NO: 86 Refer to the exhibit. it was using PagP. we need to configure the other switch with “desirable” mode.actualtests. interface FastEthernet 0/1 channel-group 1 mode passive switchport trunk encapsulation dot1q switchport mode trunk interface FastEthernet 0/2 channel-group 1 mode passive switchport trunk encapsulation dot1q switchport mode trunk Answer: C Explanation: If the etherchannel was configured with mode “auto”.www.Cisco 200-120 Exam D. duplex and the trunk encapsulation must be the same on each end. the speed. Any Time. speed B. "Pass Any Exam. DTP negotiation settings C. so.

interface FastEthernet 0/3 channel-group 1 mode desirable switchport trunk encapsulation dot1q switchport mode trunk B. the configured channel group number was 2 and the mode used was passive.com 76 . QUESTION NO: 87 A network administrator creates a layer 3 EtherChannel. so only choice B is correct. bundling four interfaces into channel group 1.www. interface FastEthernet 0/3 channel-group 2 mode passive switchport trunk encapsulation dot1q switchport mode trunk C. the lowest number member interface "Pass Any Exam. interface FastEthernet 0/3 channel-group 2 mode active switchport trunk encapsulation dot1q switchport mode trunk D.actualtests. the highest number member interface C." . On what interface is the IP address configured? A. the port-channel 1 interface B. Any Time. all member interfaces D. interface FastEthernet 0/3 channel-group 2 mode on switchport trunk encapsulation dot1q switchport mode trunk Answer: B Explanation: Based on the output shown.Cisco 200-120 Exam What set of commands was configured on interface Fa0/3 to produce the given output? A.

IP addressing (IPv4 / IPv6) QUESTION NO: 88 You have been asked to come up with a subnet mask that will allow all three web servers to be on the same network while providing the maximum number of subnets. Any Time.com/c/en/us/td/docs/switches/lan/catalyst2948gand4908g/120_7_w5_15d/configuration/guide/config/ether_ch.255.www.actualtests. not the underlying physical member interfaces." .0 255.com 77 . use the following steps beginning in global configuration mode: Command Purpose Step 1 Router(config)#interface port-channelchannel-number Router(config-if)# Creates the EtherChannel interface.168.html Topic 3.255. Reference: http://www.252. Which network address and subnet mask meet this requirement? A. Step 3 Router(config-if)#exit Router(config)# Exits this mode. 192.Cisco 200-120 Exam Answer: A Explanation: To create an EtherChannel interface and assign its IP address and subnet mask.252 "Pass Any Exam. Optionally.cisco. You can configure up to 16 FECs and 1 GEC on the Catalyst 2948G-L3 and up to 4 GECs on the Catalyst 4908G-L3. you can remain in interface configuration mode and enable other supported interface commands to meet The IP address is assigned to the port channel interface. Step 2 Router(config-if)#ip addressip-address subnet-mask Assigns an IP address and subnet maskto the EtherChannel interface.

255.0 Answer: A Explanation: For this example. 2000::/3 D.16.0. :: C.255.168. ::1 B. the network address is 172.www. 192.255. A subnet mask of 255. 0::/10 Answer: A "Pass Any Exam.252.com 78 .16.1? A. QUESTION NO: 89 Given an IP address 172. 172.16 255.0.0.240 E. QUESTION NO: 90 Which IPv6 address is the equivalent of the IPv4 interface loopback address 127. 192.16.255.252 will allow for only 2 usable IP addresses.252. 192.168.31.255.16 255. the network range is 172.16.252 Answer: B Explanation: A subnet mask of 255.255.16.248 C.255. 172.Cisco 200-120 Exam B.0. 172.172.0 C.255.24.16.255.16.16.16.252 D.1 .8 255.16.8 255.31." .252.255. 192.0 D.28.actualtests.252 with a subnet mask of 255.254.255.240.255.0 B.0 and the broadcast IP address is 172.16.248 will allow for up to 6 hosts to reside in this network. 172.16. Any Time.168. since we cannot use the network or broadcast address.252.168.255.28. what is the correct network address? A.255.

) A.actualtests. complicated header E. 10. no broadcasts D. You are asked to develop an IP addressing plan to allow the maximum number of subnets with as many as 30 hosts each.31.::1 This is a 128bit number. 10. QUESTION NO: 91 You are working in a data center environment and are assigned the address range 10. optional IPsec B. 10.31. QUESTION NO: 92 What are three features of the IPv6 protocol? (Choose three.com 79 .188.0/25 C.0/28 D. Also the question requires the maximum number of subnets (which minimum the number of hostsper-subnet) so /27 is the best choice.188.188. with the first 127 bits being '0' and the 128th bit being '1'.31. 10.31." . 10. Which IP address range meets these requirements? A. so could also be written as ::1/128.188.31.0/23. checksums "Pass Any Exam.188. autoconfiguration C. Any Time.188.0/27 E.www. It's just a single address.0/29 Answer: D Explanation: Each subnet has 30 hosts < 32 = 25 so we need a subnet mask which has at least 5 bit 0s -> /27.31.Cisco 200-120 Exam Explanation: In IPv6 the loopback address is written as.0/26 B. plug-and-play F.

C." . which is analogous to IPv4 multicast to address 224.Cisco 200-120 Exam Answer: B. the same result can be achieved by sending a packet to the link-local all nodes multicast group at address ff02::1.E Explanation: An important feature of IPv6 is that it allows plug and play option to the network devices by allowing them to configure themselves independently. ipv6 host C. QUESTION NO: 93 Which command enables IPv6 forwarding on a Cisco router? A.1. your version of IOS does not support IPv6. It is possible to plug a node into an IPv6 network without requiring any human intervention. QUESTION NO: 94 What is known as "one-to-nearest" addressing in IPv6? A.0. Any Time. unspecified address "Pass Any Exam. ipv6 neighbor Answer: C Explanation: To enable IPv6 routing on the Cisco router use the following command: ipv6 unicast-routing If this command is not recognized. the transmission of a packet to all hosts on the attached link using a special broadcast address. This feature was critical to allow network connectivity to an increasing number of mobile devices.e.www.actualtests. ipv6 unicast-routing D.This is accomplished by autoconfiguration.0.com 80 . and therefore does not define broadcast addresses. IPv6 does not implement traditional IP broadcast. global unicast B. ipv6 local B. anycast C. i. multicast D. In IPv6.

QUESTION NO: 96 Refer to the exhibit.Cisco 200-120 Exam Answer: B Explanation: IPv6 Anycast addresses are used for one-to-nearest communication. They are used as the first 24 nits of the MAC address to uniquely identify a particular piece of equipment. or other organization globally or worldwide. NIC B. QUESTION NO: 95 What is the first 24 bits in a MAC address called? A.www. OUI D. Any Time.com 81 . BIA C. manufacturer.actualtests. meaning an Anycast address is used by a device to send data to one specific recipient (interface) that is the closest out of a group of recipients (interfaces). VAI Answer: C Explanation: An Organizationally Unique Identifier (OUI) is a 24-bit number that uniquely identifies a vendor. Which subnet mask will place all hosts on Network B in the same subnet with the least amount of "Pass Any Exam." .

What is the most appropriate summarization for these routes? A.255.0.0 QUESTION NO: 97 Refer to the exhibit.0.0. 255.0. 10.0/22 subnet mask will include the 10. 255. 255.0 /23 D. and 10.2. 255.Cisco 200-120 Exam wasted addresses? A.255.0.actualtests.0.1111 1111.0.0 /21 B.0.248.www.1.0.0 networks.0 /22 C.1111 1110.0.0. 10.0. "Pass Any Exam. 10. Any Time.0.0.0000 0000 -> 255.252.com 82 .255.0.3.255.254.0.0 /24 Answer: B Explanation: The 10. and only those four networks.0.0 C.255.0.0 D. 10. 10.255. 10." .254.0 Answer: B Explanation: Explanation: 310 hosts < 512 = 29-> We need a subnet mask of 9 bits 0 -> 1111 1111.0 B.

and broadcast." . D. A single interface may be assigned multiple IPv6 addresses of any type. There are four types of IPv6 addresses: unicast.Cisco 200-120 Exam QUESTION NO: 98 Which two are features of IPv6? (Choose two. anycast.C Explanation: Reference: IPv6 Addressing at a Glance – Cisco PDF QUESTION NO: 100 Refer to the exhibit. Leading zeros in an IPv6 16 bit hexadecimal field are mandatory. allcast Answer: A. B. "Pass Any Exam.actualtests. E. Any Time. Answer: B. broadcast C. anycast addressing.) A.www.C Explanation: IPv6 addresses are classified by the primary addressing and routing methodologies common in networking:unicast addressing. The first 64 bits represent the dynamically created interface ID. multicast D. QUESTION NO: 99 Which two of these statements are true of IPv6 address representation? (Choose two. and multicast addressing. Every IPv6 interface contains at least one loopback address.) A. multicast. C. podcast E. anycast B.com 83 .

" .56/26 B.168. 8bits+ 8bits+ 8bits + 2bits = /26 /26 bits subnet is 24bits + 11000000 = 24bits + 192 256 – 192 = 64 0 -63 64 – 127 QUESTION NO: 101 Refer to the exhibit.1.1. Which subnet address should this network use to provide enough usable addresses while wasting the fewest addresses? A.www. Any Time.com 84 . 192.64/27 Answer: C Explanation: A subnet with 60 host is 2*2*2*2*2*2 = 64 -2 == 62 6 bits needed for hosts part.1. 192.64/26 D.Cisco 200-120 Exam A new subnet with 60 hosts has been added to the network.168. "Pass Any Exam.56/27 C.1.actualtests. 192. 192. Therefore subnet bits are 2 bits (8-6) in fourth octet.168.168.

172.172. RIP version 1 is the only routing protocol in use on the network and subnet 0 is not being used. 30 "Pass Any Exam.3.3.3.16.3.Also. Any Time. 172.com 85 .172.actualtests. valid option.www.16.16. Link A .128/25 C.128/25 is the best.3. Link A .) A.0/30 E.0/30 is valid.112/30 Answer: B. Network A .172. What is the maximum number of usable IP addresses that can be supported on each LAN if the organization is using one class C address block? A.3.48/26 B.16.172. Network A .D Explanation: Only a /30 is needed for the point to point link and sine the use of the ip subnet-zero was used.3.16.16. a /25 is required for 120 hosts and again 172.172.16." .3.16.192/26 D.40/30 F. Network A . QUESTION NO: 102 The network administrator needs to address seven LANs. 8 B. 6 C.Cisco 200-120 Exam All of the routers in the network are configured with the ip subnet-zero command. Which network addresses should be used for Link A and Network A? (Choose two. Link A .

Addresses in a private range will not be routed on the Internet backbone. since we need to reserve the network and broadcast addresses for each of these subnets. QUESTION NO: 104 Which two benefits are provided by using a hierarchical addressing network addressing scheme? (Choose two.Sincewe need 7 LAN blocks and we cannot use the first one (subnet 0) we take 256/8=32 hosts. 14 F. efficient utilization of MAC addresses D. 32 E." .) A. dedicated communications between devices E. auto-negotiation of media rates C. B.actualtests.Cisco 200-120 Exam D. ease of management and troubleshooting "Pass Any Exam. C.However. Answer: A Explanation: Private RFC 1918 IP addresses are meant to be used by organizations locally withintheir own network only. because other public routers can use the same range. D. A conflict of IP addresses happens. reduces routing table entries B. 16 Answer: C Explanation: Since there is one class C network thatmeans 256 total IP addresses.www. and cannot be used globally for Internet use. Only the ISP router will have the capability to access the public network.com 86 . Any Time. The NAT process will be used to translate this address to a valid IP address. QUESTION NO: 103 What will happen if a private IP address is assigned to a public interface connected to an ISP? A. only 30 total IP addresses are usable.

B514 : 82C3 :: 0029 : EC7A : 0 : EC72 Answer: D Explanation: There are two ways that an IPv6 address can be additionally compressed: compressing leading zeros and substituting a group of consecutive zeros with a single double colon (::). "Pass Any Exam.asp?p=174107 QUESTION NO: 105 What is the alternative notation for the IPv6 address B514:82C3:0000:0000:0029:EC7A:0000:EC72? A.Cisco 200-120 Exam Answer: A." .ciscopress.actualtests. Any Time. the extra 0’s can only be compressed once.com 87 . B514 : 82C3 : 0029 :: EC7A : 0000 : EC72 D.www. Both of these can be used in any number of combinations to notate the same address. B514 : 82C3 : 0029 : EC7A : EC72 B. It is important to note that the double colon (::) can only be used once within asingle IPv6 address notation.E Explanation: Here are some of the benefits of hierarchical addressing: Reference: http://www.So.com/articles/article. B514 : 82C3 :: 0029 : EC7A : EC72 C. QUESTION NO: 106 Refer to the diagram.

Which statements describe the addressing scheme that is in use in the network? (Choose three.1.205 can be assigned to hosts in VLAN1 E. The IP address 172.128. The LAN interface of the router is configured with multiple IP addresses.16.1. one with an IP address that belongs in each VLAN.F Explanation: The subnet mask in use is 255. The subnet mask in use is 255.16.255.Cisco 200-120 Exam All hosts have connectivity with one another.1.25 can be assigned to hosts in VLAN1 D. The IP address 172.16. Answer: B.255.255.128:This is subnet mask will support up to 126 hosts.255. B.255. The subnet mask in use is 255.1. QUESTION NO: 107 Which two statements describe characteristics of IPv6 unicast addressing? (Choose two.16.www.255.actualtests. which is needed.) A. C.1-172. Any Time.126 The LAN interface of the router is configured with multiple IP addresses:The router will need 2 subinterfaces for the single physical interface.25 canbe assigned to hosts in VLAN1:The usable host range in this subnet is 172. Global addresses start with 2000::/3.com 88 .) A.192. The IP address 172. F.C. The LAN interface of the router is configured with one IP address. "Pass Any Exam.1." .16.

E Explanation: IPv6 does not use broadcasts.www. no broadcast B. then that is the only allowable address for the interface. NAT Answer: A." . Link-local addresses start with FE00:/12. Answer: A. D. C. Any Time. and autoconfiguration is a feature of IPV6 that allows for hosts to automatically obtain an IPv6 address. There is only one loopback address and it is ::1. Link-local addresses start with FF00::/10. Telnet access does not require a password E.com 89 . "Pass Any Exam. change of source address in the IPv6 header C. E.actualtests.Cisco 200-120 Exam B. What are two valid reasons for adopting IPv6 over IPv4? (Choose two. change of destination address in the IPv6 header D. If a global address is assigned to an interface. autoconfiguration F.D Explanation: Below is the list of common kinds of IPv6 addresses: QUESTION NO: 108 The network administrator has been asked to give reasons for moving from IPv4 to IPv6.) A.

20.255.255. the router is assigned the first usable host address while the sales server is given the last usable host address.168.20.20.30 Subnet Mask: 255.30 Subnet Mask: 255.17 E.25 (router) – 192.240 Default Gateway: 192. 0. IP address: 192.255. For network 192.240 "Pass Any Exam.0 Default Gateway: 192. IP address: 192.240 Default Gateway: 192.255.20.248 Default Gateway: 192.168. QUESTION NO: 110 Which subnet mask would be appropriate for a network address range to be subnetted for up to eight LANs.255.255. IP address: 192.168.25 D.168.0. 255. 255.14 Subnet Mask: 255.168.24. 255.168. 255.168.20.www.255.20.com 90 .248 Default Gateway: 192. with each LAN containing 5 to 26 hosts? A.168.30 Subnet Mask: 255. Which of the following should be entered into the IP properties box for the sales server? A.240 B.255.255.20.20.255.20. the usable hosts are 192.255.255.24/29.actualtests.168.255.20.168.20.255.24/29 network.Cisco 200-120 Exam QUESTION NO: 109 An administrator must assign static IP addresses to the servers in a network.168.168.25 Answer: C Explanation: For the 192.254 Subnet Mask: 255.30 (used for the sales server).24.255.0.168.255.255. IP address: 192.168.9 B." .224 E. IP address: 192. Any Time.255.252 C.0 D.1 C.20.

24 B." .255. 16 Answer: D Explanation: An IPv6 address is represented as eight groups of four hexadecimal digits.Cisco 200-120 Exam Answer: D Explanation: For a class C network. configure IPv6 directly C. 4 C. enable dual-stack routing B. (Choose three.com 91 .D Explanation: "Pass Any Exam. a mask of 255. Any Time. configure IPv4 tunnels between IPv6 islands D. 8 D.) A.www. An example of an IPv6 address is 2001:0db8:85a3:0000:0000:8a2e:0370:7334. each group representing 16 bits (two octets). QUESTION NO: 112 What are three approaches that are used when migrating from an IPv4 addressing scheme to an IPv6 scheme. The groups are separated by colons (:).224 will allow for up to 8 networks with 32 IP addresses each (30 usable). use DHCPv6 to map IPv4 addresses to IPv6 addresses Answer: A. QUESTION NO: 111 How many bits are contained in each field of an IPv6 address? A.actualtests. statically map IPv4 addresses to IPv6 addresses F.C.255. use proxying and translation to translate IPv6 packets into IPv4 packets E.

0 /16 Answer: A Explanation: Router A receives 3 subnets: 172.32.32.0 /16 B. 172. translators.0.16. QUESTION NO: 113 Refer to the exhibit.16.16.16.128.16.x so our summarized subnet must be also in "Pass Any Exam. 172.64.0 /20 C.actualtests.0 /16 E.0 /24 D. while translators simply translate IPv6 packets into IPv4 packets. 172.0. With dual stack.0. 172. 172. 172.x.www.com 92 .0.0 /17 F.Cisco 200-120 Exam Several methods are used terms of migration including tunneling.0.16. what summary address would be sent from router A? A. devices are able to run IPv4 and IPv6 together and if IPv6 communication is possible that is the preferred protocol. and dual stack. 172.0." . Any Time.64.16. Tunnels are used to carry one protocol inside another.0/24 and 172. All these 3 subnets have the same form of 172. In this VLSM addressing scheme. Hosts can simultaneously reach IPv4 and IPv6 content.Dual stack uses a combination of both native IPv4 and IPv6.0/18.32.0/18.

www. The smallest subnet mask of these 3 subnets is /18 so our summarized subnet must also have its subnet mask equal or smaller than /18.Cisco 200-120 Exam that form -> Only A. QUESTION NO: 114 How is an EUI-64 format interface ID created from a 48-bit MAC address? A. QUESTION NO: 115 Refer to the exhibit. by appending 0xFF to the MAC address B. by prefixing the MAC address with 0xF and inserting 0xF after each of its first three bytes Answer: D Explanation: The modified EUI-64 format interface identifier is derived from the 48-bit link-layer (MAC) address by inserting the hexadecimal number FFFE between the upper three bytes (OUI field) and the lower three bytes (serial number) of the link layer address." . by prefixing the MAC address with 0xFFEE C. "Pass Any Exam. -> Only answer A has these 2 conditions ->. by prefixing the MAC address with 0xFF and appending 0xFF to it D. Any Time. by inserting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address E.com 93 . B or .actualtests.

0/22 D.0/24 172. 172.4.The leading 0’s in a group can be collapsed using ::.1.7.0/24 172.0/24 172.actualtests. each group representing 16 bits (two octets).0/24 172.0/24 Answer: C Explanation: The 172.1.1. QUESTION NO: 116 Which option is a valid IPv6 address? A.Cisco 200-120 Exam What is the most efficient summarization that R1 can use to advertise its networks to R2? A.0. "Pass Any Exam.4.1. 172.1. Any Time." .0/24 E.www.0/25 172.1.7.1.5. 2002:7654:A1AD:61:81AF:CCC1 C.1.7.4.128/25 172. 172.0/22 subnet encompasses all routes from the IP range 172.4.5. but this can only be done once in an IP address.0/22 B.1.1.4. An example of an IPv6 address is 2001:0db8:85a3:0000:0000:8a2e:0370:7334. 2004:1:25A4:886F::1 Answer: D Explanation: An IPv6 address is represented as eight groups of four hexadecimal digits.255.1.6. FEC0:ABCD:WXYZ:0067::2A4 D.4. 2001:0000:130F::099a::12a B.6. 172.1. 172.1.1.0/21 C.0/24 172.0. The groups are separated by colons (:).com 94 .0 – 172.1.

Cisco 200-120 Exam
QUESTION NO: 117
Which three are characteristics of an IPv6 anycast address? (Choose three.)
A. one-to-many communication model
B. one-to-nearest communication model
C. any-to-many communication model
D. a unique IPv6 address for each device in the group
E. the same address for multiple devices in the group
F. delivery of packets to the group interface that is closest to the sending device
Answer: B,E,F
Explanation:
A new address type made specifically for IPv6 is called the Anycast Address. These IPv6
addresses are global addresses, these addresses can be assigned to more than one interface
unlike an IPv6 unicast address. Anycast is designed to send a packet to the nearest interface that
is apart of that anycast group.
The sender creates a packet and forwards the packet to the anycast address as the destination
address which goes to the nearest router. The nearest router or interface is found by using the
metric of a routing protocol currently running on the network. However in a LAN setting the nearest
interface is found depending on the order the neighbors were learned. The anycast packet in a
LAN setting forwards the packet to the neighbor it learned about first.

QUESTION NO: 118
A national retail chain needs to design an IP addressing scheme to support a nationwide network.
The company needs a minimum of 300 sub-networks and a maximum of 50 host addresses per
subnet. Working with only one Class B address, which of the following subnet masks will support
an appropriate addressing scheme? (Choose two.)
A. 255.255.255.0
B. 255.255.255.128
C. 255.255.252.0
D. 255.255.255.224
E. 255.255.255.192
F. 255.255.248.0
Answer: B,E
Explanation:

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95

Cisco 200-120 Exam
Subnetting is used to break the network into smaller more efficient subnets to prevent excessive
rates of Ethernet packet collision in a large network. Such subnets can be arranged hierarchically,
with the organization's network address space (see also Autonomous System) partitioned into a
tree-like structure. Routers are used to manage traffic and constitute borders between subnets.
A routing prefix is the sequence of leading bits of an IP address that precede the portion of the
address used as host identifier. In IPv4 networks, the routing prefix is often expressed as a
"subnet mask", which is a bit mask covering the number of bits used in the prefix. An IPv4 subnet
mask is frequently expressed in quad-dotted decimal representation, e.g., 255.255.255.0 is the
subnet mask for the 192.168.1.0 network with a 24-bit routing prefix (192.168.1.0/24).

QUESTION NO: 119
Refer to the exhibit.

A network administrator is adding two new hosts to SwitchA. Which three values could be used for
the configuration of these hosts? (Choose three.)
A. host A IP address: 192.168.1.79
B. host A IP address: 192.168.1.64
C. host A default gateway: 192.168.1.78
D. host B IP address: 192.168.1.128
E. host B default gateway: 192.168.1.129
F. host B IP address: 192.168.1.190
Answer: A,C,F
Explanation:

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96

Cisco 200-120 Exam
It’s a “router-on-a-stick” configuration. Which means each host in the VLAN must corresponds with
the VLAN configured on the sub-interfaces.
VLAN 10 is configured on fa0/0.10 and VLAN 20 on fa0/0.20. So each hosts in VLAN 10 must use
fa0/0.10 IP address as their default gateway, each hosts must also be in the same subnet as
fa0/0.10 IP – same with hosts in VLAN 20.
So find out the usable IP addresses on each sub-interfaces – for 192.168.1.78 /27: 192.168.1.65 –
.94 and for 192.168.1.130 /26: 192.168.1.128 – .190.
Host A (using port 6 – VLAN 10) must use IP 192.168.1.79, default gateway 192.168.1.78.
Host B (using port 9 – VLAN 20) must use IP 192.168.1.190, default gateway 192.168.1.130.

QUESTION NO: 120
Which IPv6 address is the all-router multicast group?
A. FF02::1
B. FF02::2
C. FF02::3
D. FF02::4
Answer: B
Explanation:

Well-known IPv6 multicast addresses:
Address
Description
ff02::1
All nodes on the local network segment
ff02::2
All routers on the local network segment

QUESTION NO: 121
Refer to the exhibit.

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97

Cisco 200-120 Exam

Which address range efficiently summarizes the routing table of the addresses for router Main?
A. 172.16.0.0./21
B. 172.16.0.0./20
C. 172.16.0.0./16
D. 172.16.0.0/18
Answer: B
Explanation:
The 172.16.0.0./20 network is the best option as it includes all networks from 172.16.0.0 –
172.16.16.0 and does it more efficientlythan the /16 and /18 subnets.The /21 subnet will not
include all the other subnets in this one single summarized address.

QUESTION NO: 122
Which IPv6 address is valid?
A. 2001:0db8:0000:130F:0000:0000:08GC:140B
B. 2001:0db8:0:130H::87C:140B
C. 2031::130F::9C0:876A:130B
D. 2031:0:130F::9C0:876A:130B
Answer: D
Explanation:
An IPv6 address is represented as eight groups of four hexadecimal digits, each group
representing 16 bits (two octets). The groups are separated by colons (:). An example of an IPv6
address is 2001:0db8:85a3:0000:0000:8a2e:0370:7334.The leading 0’s in a group can be
"Pass Any Exam. Any Time." - www.actualtests.com

98

Cisco 200-120 Exam
collapsed using ::, but this can only be done once in an IP address.

QUESTION NO: 123
Which command can you use to manually assign a static IPv6 address to a router interface?
A. ipv6 autoconfig 2001:db8:2222:7272::72/64
B. ipv6 address 2001:db8:2222:7272::72/64
C. ipv6 address PREFIX_1 ::1/64
D. ipv6 autoconfig
Answer: B
Explanation:
To assign an IPv6 address to an interface, use the “ipv6 address” command and specify the IP
address you wish to use.

QUESTION NO: 124
Which of these represents an IPv6 link-local address?
A. FE80::380e:611a:e14f:3d69
B. FE81::280f:512b:e14f:3d69
C. FEFE:0345:5f1b::e14d:3d69
D. FE08::280e:611:a:f14f:3d69
Answer: A
Explanation:
In the Internet Protocol Version 6 (IPv6), the address block fe80::/10 has been reserved for linklocal unicast addressing. The actual link local addresses are assigned with the prefix fe80::/64.
They may be assigned by automatic (stateless) or stateful (e.g. manual) mechanisms.

QUESTION NO: 125
"Pass Any Exam. Any Time." - www.actualtests.com

99

Cisco 200-120 Exam
The network administrator is asked to configure 113 point-to-point links. Which IP addressing
scheme defines the address range and subnet mask that meet the requirement and waste the
fewest subnet and host addresses?
A. 10.10.0.0/16 subnetted with mask 255.255.255.252
B. 10.10.0.0/18 subnetted with mask 255.255.255.252
C. 10.10.1.0/24 subnetted with mask 255.255.255.252
D. 10.10.0.0/23 subnetted with mask 255.255.255.252
E. 10.10.1.0/25 subnetted with mask 255.255.255.252
Answer: D
Explanation:
We need 113 point-to-point links which equal to 113 sub-networks < 128 so we need to borrow 7
bits (because 2^7 = 128).
The network used for point-to-point connection should be /30.
So our initial network should be 30 – 7 = 23.
So 10.10.0.0/23 is the correct answer.
You can understand it more clearly when writing it in binary form:
/23 = 1111 1111.1111 1110.0000 0000
/30 = 1111 1111.1111 1111.1111 1100 (borrow 7 bits)

Topic 4, IP Routing Technologies
QUESTION NO: 126 DRAG DROP
Drag each definition on the left to the matching term on the right.

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100

(Not all options are used.) "Pass Any Exam.Cisco 200-120 Exam Answer: Explanation: QUESTION NO: 127 DRAG DROP Drag the Cisco default administrative distance to the appropriate routing protocol or route.com 101 . Any Time.actualtests." .www.

www.com 102 ." .Cisco 200-120 Exam Answer: Explanation: QUESTION NO: 128 DRAG DROP Routing has been configured on the local router with these commands: "Pass Any Exam. Any Time.actualtests.

3 Drag each destination IP address on the left to its correct next hop address on the right.0.255.0 192.0.168.0.1.actualtests.168.3.0 255.Cisco 200-120 Exam Local(config)# ip route 0.0 0.0.2.2 Local(config)# ip route 10. Any Time.0 255.0 192.0.255.0 192.1.168.1 Local(config)# ip route 10.255.1.com 103 .www. Answer: Explanation: "Pass Any Exam.0.0." .

Cisco 200-120 Exam If we have many entries matching for next hop ip address then the router will choose the one with most specific path to send the packet. the route with the most bits in the mask set to “1 will be chosen to route packet. Bandwidth B.actualtests. Delay." . Reliability. Bandwidth.www.com 104 . Bandwidth. and Load Answer: A Explanation: "Pass Any Exam. This is called the “longest match” rule. Bandwidth and Delay C. MTU. Any Time. Delay. QUESTION NO: 129 Which parameter or parameters are used to calculate OSPF cost in Cisco routers? A. and MTU D.

reduced routing overhead.The hierarchical approach is used to achieve the following: • Rapid convergence because of link and/or switch failures • Deterministic traffic recovery • Scalable and manageable routing hierarchy." . to decrease latency by increasing bandwidth B. Router(config)# password-encryption C. to reduce the complexity of router configuration F. QUESTION NO: 131 Which command encrypts all plaintext passwords? A. to confine network instability to single areas of the network E.C. to reduce routing overhead C. Attached to that backbone via area border routers (ABRs) are anumber of secondary tier areas.) A. to lower costs by replacing routers with distribution layer switches Answer: B. to speed up convergence D.Cisco 200-120 Exam The well-known formula to calculate OSPF cost is Cost = 108/ Bandwidth QUESTION NO: 130 Why do large OSPF networks use a hierarchical design? (Choose three. Router# service password-encryption B. Any Time. Router(config)# service password-encryption D.actualtests.com 105 .www. Router# password-encryption Answer: C Explanation: "Pass Any Exam.D Explanation: OSPF implements a two-tier hierarchical routing model that uses a core or backbone tier known as area zero (0).

Answer: B. Any Time. Routing updates are automatically sent to neighbors. Route summarization is computed automatically by the router.0. B. the password for Telnet access should be encrypted. D. Configuration complexity decreases as network size increases.com 106 . Security increases because only the network administrator may change the routing table. Routing tables adapt automatically to topology changes.) A.actualtests. Which set of commands will accomplish this task? A. G. in stub networks where there is only a single uplink connection.168. This command uses a very weak encryption because the router has to be very quickly decode the passwords for its operation. the load is reduced as stub routers just need a single static default route. QUESTION NO: 132 Which two are advantages of static routing when compared to dynamic routing? (Choose two.Cisco 200-120 Exam Command The “service password-encryption” command allows you to encrypt all passwords on your router so they cannot be easily guessed from your running-config. C.This is configured in global configuration mode.0. it can be argued that it is more secure (and more prone to human errors) since the network administrator will need to make changesto the routing table directly. that is all.www. QUESTION NO: 133 A network administrator needs to allow only one Telnet connection to a router.255 "Pass Any Exam. E. It is meant to prevent someone from looking over your shoulder and seeing the password.0 0. F. For anyone viewing the configuration and issuing the show run command.1." .G Explanation: Since static routing is a manual process. using automatic updates.Also. instead of many routes that all have the same next hop IP address. Routing traffic load is reduced when used in stub network links. An efficient algorithm is used to build routing tables. service password-encryption access-list 1 permit 192.

line vty0 4 would enable all 5 vty connections. "Pass Any Exam. service password-encryption line vty 0 4 login password cisco Answer: C Explanation: Only one VTY connection is allowed which is exactly what's requested. service password-encryption line vty 1 login password cisco D.actualtests. enable password secret line vty 0 login password cisco C.com 107 . QUESTION NO: 134 Refer to the exhibit." . Any Time. Incorrect answer: command.Cisco 200-120 Exam line vty 0 4 login password cisco access-class 1 B.www.

2 B.2 F.100.0.0. Syntax for default route is: ip route <Remote_Network> <Netmask> <Next_Hop_Address>.16. QUESTION NO: 135 Refer to the exhibit.255.0 172.0 255. You should generally only use default routing on stub networks—those with only one exit path out of the network. all traffic towards Internet that originates from workstations should forward to Router R1.0. According to exhibit.0 0.0.255.1 D. ip route 0.255.255.0 255." .0.0.2 Answer: E Explanation: We use default routing to send packets with a remote destination network not in the routing table to the next-hop router. ip route 0. ip route 0.www.16.0.16. "Pass Any Exam.252 128.0.0 172.1 C.actualtests.0. ip route 0.0.16.0.Cisco 200-120 Exam The speed of all serial links is E1 and the speed of all Ethernet links is 100 Mb/s.0 128.0.255 172.0 172.0 255.255.0.1. Any Time.100.100.1.107.0 0.0.255. A static route will be established on the Manchester router to direct traffic toward the Internet over the most direct path available.0.100. What configuration on the Manchester router will establish a route toward the Internet for traffic that originates from workstations on the Manchester LAN? A.0 0. ip route 0.0.0.com 108 .107.1 E. ip route 0.0.

1. "Pass Any Exam. Configure Manchester to advertise a static default route to London." . F. QUESTION NO: 136 Refer to the exhibit.0.0/22 to 10. Configure a dynamic routing protocol on London to advertise all routes to Manchester.1.com 109 . B.1. What is the simplest way to accomplish this? A. Configure a static route on London to direct all traffic destined for 172. Configure a dynamic routing protocol on London to advertise summarized routes to Manchester. Answer: E Explanation: This static route will allow for communication to the Manchester workstations and it is better to use this more specific route than a default route as traffic destined to the Internet will then not go out the London Internet connection.www.actualtests. D.1.1.2. E. Configure a static default route on London with a next hop of 10.Cisco 200-120 Exam The network administrator must establish a route by which London workstations can forward traffic to the Manchester workstations. C.16. Configure a dynamic routing protocol on Manchester to advertise a default route to the London router. Any Time.

Only the enable password will be encrypted.com 110 .0.0/16 to CentralRouter. B. C. Answer: C. a dynamic routing protocol on InternetRouter to advertise summarized routes to CentralRouter. default route on CentralRouter that directs traffic to InternetRouter. B.www. a static route on InternetRouter to direct traffic that is destined for 172. a dynamic routing protocol on CentralRouter to advertise all routes to InternetRouter. a static.F Explanation: The use of static routes will provide the necessary information for connectivity while producing no routing traffic overhead. D.16.Cisco 200-120 Exam The network administrator requires easy configuration options and minimal routing protocol traffic. E. a dynamic routing protocol on CentralRouter to advertise summarized routes to InternetRouter. What two options provide adequate routing table information for traffic that passes between the two routers and satisfy the requests of the network administrator? (Choose two. F.) A. QUESTION NO: 137 What is the effect of using the service password-encryption command? A.actualtests. Only the enable secret password will be encrypted. a dynamic routing protocol on InternetRouter to advertise all routes to CentralRouter. "Pass Any Exam." . Any Time.

www. If the service password-encryption is used. Only passwords configured after the command has been entered will be encrypted. It configures SSH globally for all logins. As a result. Answer: D Explanation: Secure Shell (SSH) is a protocol which provides a secure remote access connection to network devices. What is the effect of the configuration that is shown? A." . add the “transport input ssh” "Pass Any Exam. Answer: E Explanation: Enable vty.com 111 . Any Time.Cisco 200-120 Exam C. Use the show run command to show most passwords in clear text. B. the security of device access is improved. AUX passwords are configured on the Cisco device. D. E.actualtests. It configures a Cisco network device to use the SSH protocol on incoming communications via the virtual terminal ports. D. all the passwords are encrypted. It tells the router or switch to try to establish an SSh connection first and if that fails to use Telnet. It allows seven failed login attempts before the VTY lines are temporarily shutdown. It configures the virtual terminal lines with the password 030752180500. QUESTION NO: 138 Refer to the exhibit. console. It will encrypt the secret password and remove the enable secret password from the configuration. E. Communication between the client and server is encrypted in both SSH version 1 and SSH version 2. C. It will encrypt all current and future passwords.If you want to prevent non-SSH connections.

line protocol down"? A.shtml QUESTION NO: 139 Refer to the exhibit.com 112 . The interface is not receiving any keepalives. it will display administratively down status. "Pass Any Exam. Reference:www.cisco." . The interface has been configured with the shutdown command. D. The wrong type of cable is connected to the interface.www.actualtests. Any Time.com/warp/public/707/ssh. C. There is a mismatch in encapsulation types. What is the reason that the interface status is "administratively down. QUESTION NO: 140 Refer to the exhibit. F. There is no encapsulation type configured. E. You can bring up an interface having administratively down interface using no shutdown command. Straight (non-SSH) Telnets are refused. Answer: D Explanation: Interfaces can be enabled or disabled with shutdown/no shutdown command. The interface needs to be configured as a DTE device. If you interface is down. B.Cisco 200-120 Exam command under the lines to limit the router to SSH connections only.

Route summarization is enabled on both routers. Answer: B Explanation: To form an adjacency (become neighbor). the OSPF route B. One route is from EIGRP and has a composite metric of 20514560. what would cause router A not to form an adjacency with router B? A. Another route is from OSPF with a metric of 782. The loopback addresses are on different subnets. B. The process identifier on router A is different than the process identifier on router B. C.actualtests. the OSPF and RIPv2 routes Answer: B Explanation: "Pass Any Exam. Any Time. the EIGRP route C. router A & B must have the same Hello interval." . all three routes E. D. The last is from RIPv2 and has a metric of 4. Dead interval and AREA numbers QUESTION NO: 141 A router has learned three possible routes that could be used to reach a destination network. The values of the dead timers on the routers are different.www. the RIPv2 route D.com 113 . Which route or routes will the router install in the routing table? A.Cisco 200-120 Exam When running OSPF.

" . the router will choose to use the routing protocol which has lowest Administrative Distance. "Pass Any Exam.actualtests.Cisco 200-120 Exam Explanation: When one route is advertised by more than one routing protocol. The Administrative Distances of popular routing protocols are listed below: QUESTION NO: 142 Refer to the exhibit.www.com 114 . Any Time.

64/26 subnet. which shows the number of queued EIGRP packets) for the adjacent routers are listed: "Pass Any Exam.168. D. The retransmit interval (Smooth Round Trip Timer – SRTT) and the queue counts (Q count. What path will packets take from a host on the 192.10.actualtests.10. C. The retransmit interval and the queue counts for the adjacent routers also need to be checked.168.Cisco 200-120 Exam The company uses EIGRP as the routing protocol. The path of the packets will be both R3 to R2 to R1 AND R3 to R1. Router# show ip eigrp topology C.168.10.10.192/26 network to a host on the LAN attached to router R1? A. Router# show ip eigrp adjacency B.64 will be routed from R3 -> R1 -> LAN on R1.9. The path of the packets will be R3 to R1.www. Router# show ip eigrp neighbors Answer: D Explanation: Below is an example of the show ip eigrp neighbors command.com 115 ." .8/30 network (the network between R1 & R3) -> packets destined for 192. The path of the packets will be R3 to R2 to R1. Any Time. The path of the packets will be R3 to R1 to R2. B. From the output of the routing table of R3 we learn this network can be reach via 192.10. Router# show ip eigrp interfaces D. QUESTION NO: 143 A network administrator is troubleshooting an EIGRP problem on a router and needs to confirm the IP addresses of the devices with which the router has established adjacency.168. What command will display the required information? A.168. which is an IP address in 192. Answer: D Explanation: Host on the LAN attached to router R1 belongs to 192.

Any Time. A static route has been configured from R1 to R3 and prevents the neighbor adjacency from being established. 3. each router must be matched with the following items: 1. B.www.Cisco 200-120 Exam QUESTION NO: 144 Refer to the graphic. The area ID and its types.) A. R1 is unable to establish an OSPF neighbor relationship with R3. OSPF Password (Optional). D. R1 and R3 are configured in different areas. What are possible reasons for this problem? (Choose two. Answer: D. EIGRP is also configured on these routers with a lower administrative distance. R1 and R2 are the DR and BDR. The hello and dead interval timers are not set to the same values on R1 and R3.F Explanation: This question is to examine the conditions for OSPF to create neighborhood. So as to make the two routers become neighbors. C. "Pass Any Exam. All of the routers need to be configured for backbone Area 1. 2.com 116 . F." . Hello and failure time interval timer.actualtests. E. so OSPF will not establish neighbor adjacency with R3.

Any Time. AS numbers must be changed to match on all the routers B." . a command that can be entered in any configuration mode Answer: A Explanation: When you enter global configuration mode and enter a command. QUESTION NO: 146 Refer to the exhibit. regardless of the version or deployment status E.www. a command that is available in every release of IOS. a command that is set once and affects the entire router B. The no auto-summary command is needed on Router A and Router C "Pass Any Exam. When running EIGRP. what is required for RouterA to exchange routing updates with RouterC? A. Loopback interfaces must be configured so a DR is elected C. a command that is implemented in all foreign and domestic IOS versions C. it is applied to the running configuration file that is currently running in ram.Cisco 200-120 Exam QUESTION NO: 145 What is a global command? A.com 117 .The configuration of a global command affects the entire router.actualtests. a command that is universal in application and supports all protocols D.An example of a global command is one used for the hostname of the router.

It loads the first image file in flash memory. Router B needs to have two network statements.www. Answer: A Explanation: Default (normal) Boot Sequence Power on Router .Router does POST . K value. D.check the startup-config file in NVRAM for boot-system commands . What function does the router perform next? A. one for each connected network Answer: A Explanation: This question is to examine the understanding of the interaction between EIGRP routers. must match the following information: 1. AS Number. It inspects the configuration file in NVRAM for boot instructions. C. EIGRP routers to establish. It checks the configuration register.Bootstrap starts IOS load . The following information must be matched so as to create neighborhood. QUESTION NO: 147 A Cisco router is booting and has just completed the POST process.Cisco 200-120 Exam D.Check configuration registerto see what mode the router should boot up in (usually 0x2102 to read startup-config in NVRAM / or 0x2142 to start in "setup-mode") ." .com 118 . 2. Any Time. "Pass Any Exam.actualtests. B. It attempts to boot from a TFTP server.load IOS from Flash. It is now ready to find and load an IOS image. QUESTION NO: 148 Refer to the exhibit.

but they are unable to communicate with hosts on different VLANs. QUESTION NO: 149 On a corporate network. F. The maximum number of bytes that can traverse this interface per second is 1500. then make the sub-interface on the router to connect to the switch. B. a router with an IP address on the physical interface connected to the switch C. establishing Trunking links to achieve communications of "Pass Any Exam. E. they can communicate with the help of Layer3 router. What is needed to allow communication between the VLANs? A." . a switch with a trunk link that is configured between the switches Answer: A Explanation: Different VLANs can't communicate with each other. C.com 119 .www. The maximum segment size that can traverse this interface is 1500 bytes. The maximum packet size that can traverse this interface is 1500 bytes.Cisco 200-120 Exam What is the meaning of the output MTU 1500 bytes? A. hosts on the same VLAN can communicate with each other. The minimum segment size that can traverse this interface is 1500 bytes. The maximum frame size that can traverse this interface is 1500 bytes. Answer: E Explanation: The Maximum Transmission Unit (MTU) defines the maximum Layer 3 packet (in bytes) that can be transmitted out the interface. D. The minimum packet size that can traverse this interface is 1500 bytes. a router with subinterfaces configured on the physical interface that is connected to the switch B.actualtests. Any Time. it is needed to connect a router to a switch. a switch with an access link that is configured between the switches D. Hence.

the switches tag each frame sent between switches so that the receiving switch knows to what VLAN the frame belongs.x y.1Q Virtual LAN RouterA(config-subif)#encapsulation dot1Q or isl VLAN ID RouterA(config-subif)# ip address x. Any Time. By default. The attached devices are unaware of any VLAN structure.com 120 . only hosts that are members of the same VLAN can communicate. show system D. With VLAN trunking. the full command is “show processes”) command gives us lots of information about each process but in fact it is not easy to read.www." . show process C. Below shows the output of this command (some next pages are omitted). you need to use VLAN trunking between the switches. End user devices connect to switch ports that provide simple connectivity to a single VLAN each.y. you need a router or a layer 3 switch. Here is the example of configuring the router for inter-vlan communication RouterA(config)#int f0/0. "Pass Any Exam.x.1 RouterA(config-subif)#encapsulation ? dot1Q IEEE 802.Cisco 200-120 Exam devices which belong to different VLANs.y. show version Answer: B Explanation: Explanation: The “show process” (in fact.actualtests.x. show protocols B. When using VLANs in networks that have multiple interconnected switches. To change this and allow inter-VLAN communication.y QUESTION NO: 150 Which command displays CPU utilization? A.

and 72 hours are clearly shown: "Pass Any Exam. in which the total CPU usage on the router over a period of time: one minute.com 121 ." .Cisco 200-120 Exam A more friendly way to check the CPU utilization is the command “show processes cpu history”.www. Any Time.actualtests. one hour.

Send entire routing table to all routers in the routing domain.www. B.actualtests. C.) A. D. Any Time.Cisco 200-120 Exam + The Y-axis of the graph is the CPU utilization. from the last graph (last 72 hours) we learn that the highest CPU utilization within 72 hours is 37% about six hours ago. For example. "Pass Any Exam. + The X-axis of the graph is the increment within the period displayed in the graph.com 122 . Send periodic updates regardless of topology changes." . QUESTION NO: 151 What two things will a router do when running a distance vector routing protocol? (Choose two. Update the routing table based on updates from their neighbors. Use the shortest-path algorithm to the determine best path.

1 111.4.2.Cisco 200-120 Exam E.133 775 0x80000005 0x00B5B1 2 Net Link States (Area 0) Link ID ADV Router Age Seq# Checksum 10.133. show ip ospf lsa database C.111. show ip ospf link-state B.111. Answer: A.133.2.Here is an example: Here is the lsa database on R2.111.4.2. QUESTION NO: 152 Which command is used to display the collection of OSPF link states? A.133.D Explanation: Distance means how far and Vector means in which direction.1.111.133. show ip ospf neighbors D.111 794 0x80000001 0x001E8B 10.2.actualtests.133 812 0x80000001 0x004BA9 10.133.133 775 0x80000001 0x00C31F "Pass Any Exam.111.www.111.133. show ip ospf database Answer: D Explanation: The “show ip ospf database” command displays the link states.4.2 793 0x80000003 0x004F85 2 10.133. The routing updates proceed step by step from router to router.111 755 0x80000005 0x0059CA 2 133. Any Time.4.4 776 0x80000004 0x005643 1 111.3 133.2." .2.2 2.4 10. Maintain the topology of the entire network in its database.4. In distance vector routing protocols.133. R2#show ip ospf database OSPF Router with ID (2.2.4.com 123 .111.133 133.3 133.111 111. Distance Vector routing protocols pass periodic copies of routing table to neighbor routers and accumulate distance vectors. routers discover the best path to destination from each neighbor.111 755 0x80000001 0x007F16 10.4.4.1 111.2.1.2) (Process ID 1) Router Link States (Area 0) Link ID ADV Router Age Seq# Checksum Link count 2.111.

" . QUESTION NO: 154 Refer to the exhibit. The technician wants to upload a new IOS in the router while keeping the existing IOS.8 are being used already. Any Time.www.com 124 . 7 MB E. 8 MB Answer: B Explanation: In this example. so another file as large as 4MB can be loaded in addition to the original file. but 3.actualtests. there are a total of 8 MB. 5 MB D. 4 MB C. "Pass Any Exam. What is the maximum size of an IOS file that could be loaded if the original IOS is also kept in flash? A. 3 MB B.Cisco 200-120 Exam QUESTION NO: 153 Refer to the exhibit.

255. The Manchester serial address is 10.1.255.252. B. QUESTION NO: 155 "Pass Any Exam.) A.1 ->. C. E. So we can deduce the ip address (of the serial interface) of Manchester router is 10.www. and “Port ID (outgoing port)” refers to the port on the neighbor router. The Manchester router is a Cisco 2610. Maybe the most difficult choice of this question is the answer E or F." .1. The Manchester serial address is 10. Please notice that “Interface” refers to the local port on the local router. what three statements are true of these devices? (Choose three. The platform of the neighbor router is cisco 2610. in this case it is the port of Manchester router. The London router is a Cisco 2610.252.1. Therefore there are only 2 available hosts in this network (22 – 2 = 2).1.1.1. we learn that the IP address of the neighbor router is 10. D. Given the output that is shown.com 125 . as shown in the output ->.2 and the question stated that the subnet mask of the network between two routersis 255. F.Cisco 200-120 Exam The two exhibited devices are the only Cisco devices on the network.C. Any Time.1. The CDP information was sent by port Serial0/0 of the London router. The serial network between the two devices has a mask of 255.1.2. The CDP information was received on port Serial0/0 of the Manchester router.actualtests.E Explanation: From the output.255.255. Answer: A.1.

2.Cisco 200-120 Exam If IP routing is enabled. QUESTION NO: 156 Which parameter would you tune to affect the selection of a static route as a backup.0.0.) A.0 172. link delay E.0 C.0.0.16. which two commands set the gateway of last resort to the default gateway? (Choose two.0.2. link cost Answer: B Explanation: By default the administrative distance of a static route is 1.0." . administrative distance C.0.com 126 .1 0.actualtests.0. when a dynamic protocol is also being used? A.www. meaning it will be preferred overall dynamic routing protocols.0.E Explanation: Both the “ip default-network” and “ip route 0. ip default-network 0.0. you need to increase the AD of the static route so that it is higher than the dynamic routing protocol. ip default-route 0. "Pass Any Exam.If you want to have the dynamic routing protocol used and have the static route be used only as a backup.0 (next hop)” commands can be used to set the default gateway in a Cisco router.0.2.0 172. link bandwidth D.0.0 0.16.0 0.0.1 Answer: C. ip route 172.0.0. ip default-gateway 0.0 B. ip route 0.0 0. hop count B.0. Any Time.0. QUESTION NO: 157 Refer to the exhibit.1 E.0.0 D.16.0.0 0.0.

Cisco 200-120 Exam

A network associate has configured OSPF with the command:
City(config-router)# network 192.168.12.64 0.0.0.63 area 0
After completing the configuration, the associate discovers that not all the interfaces are
participating in OSPF. Which three of the interfaces shown in the exhibit will participate in OSPF
according to this configuration statement? (Choose three.)
A. FastEthernet0 /0
B. FastEthernet0 /1
C. Serial0/0
D. Serial0/1.102
E. Serial0/1.103
F. Serial0/1.104
Answer: B,C,D
Explanation:
The “network 192.168.12.64 0.0.0.63 equals to network 192.168.12.64/26. This network has:
+ Increment: 64 (/26= 1111 1111.1111 1111.1111 1111.1100 0000)
+ Network address: 192.168.12.64
+ Broadcast address: 192.168.12.127
Therefore all interfacesin the range of this network will join OSPF.

QUESTION NO: 158
Refer to the exhibit.

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127

Cisco 200-120 Exam

The Lakeside Company has the internetwork in the exhibit. The administrator would like to reduce
the size of the routing table on the Central router. Which partial routing table entry in the Central
router represents a route summary that represents the LANs in Phoenix but no additional
subnets?
A. 10.0.0.0/22 is subnetted, 1 subnets
D 10.0.0.0 [90/20514560] via 10.2.0.2, 6w0d, Serial0/1
B. 10.0.0.0/28 is subnetted, 1 subnets
D 10.2.0.0 [90/20514560] via 10.2.0.2, 6w0d, Serial0/1
C. 10.0.0.0/30 is subnetted, 1 subnets
D 10.2.2.0 [90/20514560] via 10.2.0.2, 6w0d, Serial0/1
D. 10.0.0.0/22 is subnetted, 1 subnets
D 10.4.0.0 [90/20514560] via 10.2.0.2, 6w0d, Serial0/1
E. 10.0.0.0/28 is subnetted, 1 subnets
D 10.4.4.0 [90/20514560] via 10.2.0.2, 6w0d, Serial0/1
F. 10.0.0.0/30 is subnetted, 1 subnets
D 10.4.4.4 [90/20514560] via 10.2.0.2, 6w0d, Serial0/1
Answer: D
Explanation:
The 10.4.0.0/22 route includes 10.4.0.0/24, 10.4.1.0/24, 10.4.2.0/24 and 10.4.3.0/24 networks
only.

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128

Cisco 200-120 Exam
QUESTION NO: 159
Refer to the graphic.

A static route to the 10.5.6.0/24 network is to be configured on the HFD router. Which commands
will accomplish this? (Choose two.)
A. HFD(config)# ip route 10.5.6.0 0.0.0.255 fa0/0
B. HFD(config)# ip route 10.5.6.0 0.0.0.255 10.5.4.6
C. HFD(config)# ip route 10.5.6.0 255.255.255.0 fa0/0
D. HFD(config)# ip route 10.5.6.0 255.255.255.0 10.5.4.6
E. HFD(config)# ip route 10.5.4.6 0.0.0.255 10.5.6.0
F. HFD(config)# ip route 10.5.4.6 255.255.255.0 10.5.6.0
Answer: C,D
Explanation:
The simple syntax of static route:
ip route destination-network-address subnet-mask {next-hop-IP-address | exit-interface}
+ destination-network-address: destination network address of the remote network
+ subnet mask: subnet mask of the destination network
+ next-hop-IP-address: the IP address of the receiving interface on the next-hop router
+ exit-interface: the local interface of this router where the packets will go out
In the statement “ip route 10.5.6.0 255.255.255.0 fa0/0:
+ 10.5.6.0 255.255.255.0: the destination network
+fa0/0: the exit-interface

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129

Cisco 200-120 Exam
QUESTION NO: 160
Before installing a new, upgraded version of the IOS, what should be checked on the router, and
which command should be used to gather this information? (Choose two.)
A. the amount of available ROM
B. the amount of available flash and RAM memory
C. the version of the bootstrap software present on the router
D. show version
E. show processes
F. show running-config
Answer: B,D
Explanation:
When upgrading a new version of the IOS we need to copy the IOS to the Flash so first we have
to check if the Flash has enough memory or not. Also running the new IOS may require more
RAM than the older one so we should check the available RAM too. We can check both with the
“show version” command.

QUESTION NO: 161
Which command reveals the last method used to powercycle a router?
A. show reload
B. show boot
C. show running-config
D. show version
Answer: D
Explanation:
Explanation:
The “show version” command can be used to show the last method to powercycle (reset) a router.

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130

Cisco 200-120 Exam

QUESTION NO: 162
Which command would you use on a Cisco router to verify the Layer 3 path to a host?
A. tracert address
B. traceroute address
C. telnet address
D. ssh address
Answer: B
Explanation:

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131

Cisco 200-120 Exam
In computing, traceroute is a computer network diagnostic tool for displaying the route (path) and
measuring transit delays of packets across an Internet Protocol (IP) network. The history of the
route is recorded as the round-trip times of the packets received from each successive host
(remote node) in the route (path); the sum of the mean times in each hop indicates the total time
spent to establish the connection. Traceroute proceeds unless all (three) sent packets are lost
more than twice, then the connection is lost and the route cannot be evaluated. Ping, on the other
hand, only computes the final round-trip times from the destination point.

QUESTION NO: 163
What information does a router running a link-state protocol use to build and maintain its
topological database? (Choose two.)
A. hello packets
B. SAP messages sent by other routers
C. LSAs from other routers
D. beacons received on point-to-point links
E. routing tables received from other link-state routers
F. TTL packets from designated routers
Answer: A,C
Explanation:
Neighbor discovery is the first step in getting a link state environment up and running. In keeping
with the friendly neighbor terminology, a Hello protocol is used for this step. The protocol will
define a Hello packet format and a procedure for exchanging the packets and processing the
information the packets contain.
After the adjacencies are established, the routers may begin sending out LSAs. As the term
flooding implies, the advertisements are sent to every neighbor. In turn, each received LSA is
copied and forwarded to every neighbor except the one that sent the LSA.

QUESTION NO: 164
Which statements describe the routing protocol OSPF? (Choose three.)
A. It supports VLSM.
B. It is used to route between autonomous systems.
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132

D. The network administrator failed to save the configuration.Cisco 200-120 Exam C. When the router starts. Answer: A "Pass Any Exam.actualtests. F. which is a departure from the Bellman-Ford vector based algorithms used in traditional Internet routing protocols such as RIP. B. and so forth. C. it enters the system configuration dialog as shown." . The network administrator powers down the router and sets it up at a remote location. A network administrator configures a new router and enters the copy startup-config running-config command on the router. The boot system flash command is missing from the configuration. Flooding and calculation of the Dijkstra algorithm on a router is limited to changes within an area. D. It increases routing overhead on the network. Answer: A. E. OSPF uses flooding to exchange link-state updates between routers. It allows extensive control of routing updates.www. The router is configured with the boot system startup command. QUESTION NO: 165 Refer to the exhibit. route summarization. It is simpler to configure than RIP v2. E. Areas are introduced to put a boundary on the explosion of link-state updates.com 133 . What is the cause of the problem? A. The configuration register is set to 0x2102. OSPF has introduced new concepts such as authentication of routing updates. Any change in routing information is flooded to all routers in the network. It confines network instability to one area of the network.E Explanation: The OSPF protocol is based on link-state technology. Variable Length Subnet Masks (VLSM).C. Any Time. The configuration register is set to 0x2100.

QUESTION NO: 166 What is the default administrative distance of OSPF? A. So everything configured was deleted. Default Distance Value Table This table lists the administrative distance default values of the protocols that Cisco supports: Route Source Default Distance Values Connected interface 0 Static route 1 Enhanced Interior Gateway Routing Protocol (EIGRP) summary route 5 External Border Gateway Protocol (BGP) 20 "Pass Any Exam. 110 D. Administrative distance defines the reliability of a routing protocol. Each routing protocol is prioritized in order of most to least reliable (believable) with the help of an administrative distance value.www. Any Time.actualtests. 100 C. 120 Answer: C Explanation: Administrative distance is the feature that routers use in order to select the best path when there are two or more different routes to the same destination from two different routing protocols.com 134 . This will make the “System Configuration Dialog” appear at the next reload.Cisco 200-120 Exam Explanation: The “System Configuration Dialog” appears only when no startup configuration file is found. The network administrator has made a mistake because the command “copy startup-config runningconfig” will copy the startup config (which is empty) over the running config (which is configured by the administrator). 90 B." . Note: We can tell the router to ignore the start-up configuration on the next reload by setting the register to 0×2142.

provides common view of entire topology B. exchanges routing tables with neighbors C.D Explanation: Each of routers running link-state routing protocol learns paths to all the destinations in its “area” so we can say although it is a bit unclear.com 135 .www. Link-state routing protocols generate routing updates only (not the whole routing table) when a change occurs in the network topology so Link-state routing protocol like OSPF uses Dijkstra algorithm to calculate the shortest path ->. utilizes frequent periodic updates Answer: A.C.Cisco 200-120 Exam Internal EIGRP 90 IGRP 100 OSPF 110 Intermediate System-to-Intermediate System (IS-IS) 115 Routing Information Protocol (RIP) 120 Exterior Gateway Protocol (EGP) 140 On Demand Routing (ODR) 160 External EIGRP 170 Internal BGP 200 Unknown* 255 QUESTION NO: 167 Which characteristics are representatives of a link-state routing protocol? (Choose three. utilizes event-triggered updates E.actualtests.) A. Any Time." . "Pass Any Exam. calculates shortest path D.

Based on the exhibited routing table.10.192/26 LAN be forwarded to 192.168. QUESTION NO: 168 Refer to the exhibit.www. The router will forward packets from R3 to R2 to R1 AND from R3 to R1. Answer: C "Pass Any Exam.10. how will packets from a host within the 192. link-state routing protocol utilizes event-triggered updates (only sends update when a change occurs) ->." . D.com 136 .actualtests.Cisco 200-120 Exam Unlike Distance vector routing protocol (which utilizes frequent periodic updates). The router will forward packets from R3 to R2 to R1. B.1? A.168. The router will forward packets from R3 to R1 to R2. Any Time. C. The router will forward packets from R3 to R1.

10.168.0 0. Answer: D Explanation: Since all the same router (C-router) is the default gateway for all three VLANs.3.10.0.actualtests.10.0.0 B. These commands need to be added to the configuration: C-router(config)# router ospf 1 C-router(config-router)# network 172. These commands need to be added to the configuration: C-router(config)# router eigrp 123 C-router(config-router)# network 172.19.Cisco 200-120 Exam Explanation: From the routing table we learn that network 192.19.9 &192. all traffic destined "Pass Any Exam. QUESTION NO: 169 Refer to the exhibit.www. The hosts in the VLANs have been configured with the appropriate default gateway.0.0 D.com 137 .5) -> traffic to this network will be load-balancing. These commands need to be added to the configuration: C-router(config)# router rip C-router(config-router)# network 172. What is true about this configuration? A. Any Time.168.0.168.255 area 0 C. All the interfaces have been properly configured and IP routing is operational.0/30 is learned via 2 equal-cost paths (192.19. C-router is to be used as a "router-on-a-stick" to route between the VLANs. No further routing configuration is required." .

The current IOS is deleted just because the administrator wants to do so. In order for the router to use the new image as the default. no routing protocols need to be configured. Any Time.167/ c1600-k8sy-mz. the router asked “Erasing flash before copying? [confirm]” and the administrator confirmed (by pressing Enter) so the flash was deleted. If the flash does not have enough space you will see an error message like this: %Error copying tftp://192.Cisco 200-120 Exam to a different VLA will be sent to the C-router." .2. Erasing current flash content is requested during the copy dialog.www. C. Answer: C Explanation: During the copy process.actualtests. Flash memory on Cisco routers can contain only a single IOS image.bin (Not enough space on device) "Pass Any Exam. Why is flash memory erased prior to upgrading the IOS image from the TFTP server? A. The router cannot verify that the Cisco IOS image currently in flash is valid.Since the C-router already knows how to get to all three networks. it must be the only IOS image in flash.l23-16a. B. the flash has enough space to copy a new IOS without deleting the current one. QUESTION NO: 170 Refer to the exhibit. Note: In this case.168.The C-router will have knowledge of all three networks since they will appear as directly connected in the routing table. D.com 138 .

cdp run D.The “cdp enable” command is an interface command. enable cdp B. If you prefer not to use the CDP capability.www. disable it with the no cdp run command. In order to reenable CDP.65? "Pass Any Exam.Cisco 200-120 Exam QUESTION NO: 171 Which command would you configure globally on a Cisco router that would allow you to view directly connected Cisco devices? A.1. QUESTION NO: 172 Refer to the exhibit.5. Any Time." . According to the routing table.actualtests. cdp enable C. not global. use the cdp run commandin global configuration mode. where will the router send a packet destined for 10.com 139 . run cdp Answer: C Explanation: CDP is enabled on Cisco routers by default.

255.65 belongs to 10.25.64/29 & 10.255.252 E. 192.3." .64/28.28 255.25.1.168.255.Cisco 200-120 Exam A.16 255. 10.5.255.1.5. Any Time.255.1.25.1.168.3 D.2 C.255.3 ->. 192.25.240 D.255.240 F.255. 10.1.168.2 B.3.0 255.168. 192.com 140 .4. 10.16 255.255.1.255.www.168.2.240 B.5.25.168.252 C. 192.5.255.25.1. 10.1.255.252 Answer: C Explanation: The binary version of 20 is 10100. 10. Which address and mask combination represents a summary of the routes learned by EIGRP? A. QUESTION NO: 173 Refer to the exhibit.actualtests. 192.28 255.4 Answer: C Explanation: The destination IP address 10.64/27 subnets but the “longest prefix match” algorithm will choose the most specific subnet mask -> the prefix “/29 will be chosen to route the packet.0 255. 192. "Pass Any Exam.1.1. Therefore the next-hop should be 10.

11110000) = 255.168.25.1111 1111. 28 – 16 = 12 but 12 is not an exponentiation of 2 so we must choose 16 (24).25. Any Time.255. Therefore the subnet mask is /28 (=1111 1111.255. The binary version of 28 is 11100. "Pass Any Exam.20 + 192. B. One interface has a problem. QUESTION NO: 174 Refer to the exhibit.16 + 192.168.25. The binary version of 24 is 11000.25.28 -> The increment should bE.255. The interfaces are functioning correctly.25. Note: From the output above. Assuming that the entire network topology is shown.com 141 .24 + 192.168. The mask is 255.16 255." .the best answer should be 192.1111 1111.168. The subnet mask is /28. So.255. Two interfaces have problems. C.240.168.actualtests.Cisco 200-120 Exam The binary version of 16 is 10000.255.240.255.240.www. EIGRP learned 4 routes and we need to find out the summary of them: + 192. what is the operational status of the interfaces of R2 as indicated by the command output shown? A.

+ Flash (the default location) 2. HTTP server E. "Pass Any Exam. The operational status of the interfaces cannot be determined from the output shown. Answer: C Explanation: The output shown shows normal operational status of the router’s interfaces. Any Time.Serial0/0 is down because it has been disabled using the “shutdown” command. RAM B.www.com 142 . Telnet server Answer: C.Cisco 200-120 Exam D.actualtests.) A. flash memory D. TFTP server F. QUESTION NO: 175 Which two locations can be configured as a source for the IOS image in the boot system command? (Choose two. + TFTP server 3." . NVRAM C.E Explanation: The following locations can be configured as a source for the IOS image: 1. (Please read the explanation of Question 4 for more information) QUESTION NO: 176 Refer to the exhibit. + ROM (used if no other source is found) 4.

1 C. what router ID will OSPF use for this router? A.5." .Cisco 200-120 Exam Given the output for this command.1 D. 10.www.3 Answer: C Explanation: The highest IP address of all loopback interfaces will be chosen -> Loopback 0 will be chosen as the router ID.168. QUESTION NO: 177 Refer to the exhibit.1. "Pass Any Exam.154.16.2 B.1. if the router ID has not been manually set.actualtests.com 143 .154. 172.5. 10. 192. Any Time.

actualtests.255.1 255.20.E Explanation: The router will need to use subinterfaces.0 Router(config-router)# network 192. QUESTION NO: 178 Which two statements describe the process identifier that is used in the command to configure OSPF on a router? (Choose two. Switch1(config)# interface vlan 1 Switch1(config-if)# ip default-gateway 192." .10.0 D.1. Any Time.168. Different process identifiers can be used to run multiple OSPF processes "Pass Any Exam. Switch1(config)# vlan database Switch1(config-vlan)# vtp domain XYZ Switch1(config-vlan)# vtp server E. Only one process number can be used on the same router.20.1 Router(config-subif)# encapsulation dot1q 10 Router(config-subif)# ip address 192.1 255.1 255.com 144 .168.On the switch.0 C. B. C.168. All OSPF routers in an area must have the same process ID.255.2 Router(config-subif)# encapsulation dot1q 20 Router(config-subif)# ip address 192.168.168.www.Cisco 200-120 Exam What commands must be configured on the 2950 switch and the router to allow communication between host 1 and host 2? (Choose two.1 Answer: B.255.) Router(config)# router ospf 1 A. Switch1(config)# interface fastethernet 0/1 Switch1(config-if)# switchport mode trunk F. Router(config)# interface fastethernet 0/0 Router(config-if)# no shut down Router(config)# interface fastethernet 0/0.10.) A.0 Router(config)# interface fastethernet 0/0. the connection to the router need to be configured as a trunk using the switchport mode trunk command and it will need a default gateway for VLAN 1.1. Router(config)# interface fastethernet 0/0 Router(config-if)# ip address 192.255. where each subinterface is assigned a VLANand IP address for each VLAN.0 Router(config-if)# no shut down B.168.255. Router(config)# router eigrp 100 Router(config-router)# network 192.255.

) A. Any Time. Router1 cannot locate a valid IOS image in flash memory. Answer: C. Cisco routers will first attempt to load an image from TFTP for management purposes. Answer: A. D.actualtests.com 145 . Router1 is acting as a TFTP server for other routers. The process number can be any number from 1 to 65. B.D Explanation: Multiple OSPF processes can be configured on a router using multiple process ID’s. E. E.Cisco 200-120 Exam D.www.C Explanation: "Pass Any Exam.The valid process ID’s are shown below: Edge-B(config)#router ospf ? <1-65535>Process ID QUESTION NO: 179 Refer to the exhibit. For what two reasons has the router loaded its IOS image from the location that is shown? (Choose two. Router1 defaulted to ROMMON mode and loaded the IOS image from a TFTP server." . C. Router1 has specific boot system commands that instruct it to load IOS from a TFTP server.535. Hello packets are sent to each neighbor to determine the processor identifier.

actualtests. QUESTION NO: 180 Refer to the exhibit. TFTP server (netboot) c. Startup-config filE. ROM)?] If no boot system commands in startup-config use the default fallback sequence in locating the IOS: a. Bootstrap code executed 3. POST (power on self-test) 2. If IOS is loaded. What can be determined about the router from the console output? "Pass Any Exam. Any Time.com 146 . Check for boot system commands (NVRAM) If boot system commands in startup-config a. use default fallback sequence to locate the IOS (Flash. but there is no startup-config file. Check Configuration Register value (NVRAM) which can be modified using the config-register command 0 = ROM Monitor mode 1 = ROM IOS 2 . Run boot system commands in order they appear in startup-config to locate the IOS b. TFTP.15 = startup-config in NVRAM 4. the router will use the default fallback sequence for locating the IOS and then it will enter setup mode or the setup dialogue. [If boot system commands fail.Cisco 200-120 Exam The loading sequence of CISCO IOS is as follows: Booting up the router and locating the Cisco IOS 1.www. Flash (sequential) b." . ROM (partial IOS) or keep retrying TFTP depending upon router model 5.

htm QUESTION NO: 182 Which commands are required to properly configure a router to run OSPF and to add network 192.actualtests.E Explanation: This scenario is commonly called a router on a stick. Router(config)# router ospf 1 C. one subinterface per VLAN F. No configuration file was found in the PCMCIA card.0/24 to OSPF area 0? (Choose two. well written article on this operation can be found here: http://www. Router(config)# router ospf 0 B.D. subinterface encapsulation identifiers that match VLAN tags E.A short. C. one physical interface for each subinterface B. No configuration file was found in flash. Answer: A Explanation: When no startup configuration file is found in NVRAM. subinterface numbering that matches VLAN tags Answer: B.thebryantadvantage. D.16.Cisco 200-120 Exam A. Any Time.) A. one IP network or subnetwork for each subinterface C. QUESTION NO: 181 Which three elements must be used when you configure a router interface for VLAN trunking? (Choose three. No configuration file was found in NVRAM. Configuration file is normal and will load in 15 seconds.www. the System Configuration Dialog will appear to ask if we want to enter the initial configuration dialog or not. Router(config)# router ospf area 0 "Pass Any Exam.168.com/RouterOnAStickCCNACertificationExamTutorial. a management domain for each subinterface D.) A.com 147 ." . B.

254/24 B.0/24 C.168.0.10.168. Router(config-router)# network 192. QUESTION NO: 184 What is the default maximum number of equal-cost paths that can be placed into the routing table of a Cisco OSPF router? "Pass Any Exam.10.10. a default route with a next hop address of 192. QUESTION NO: 183 A router receives information about network 192.0.10.168. a RIP update for network 192." .0.0/24 from multiple sources.www. in this case the /24 routes willbe chosen over the /16 routes.actualtests. a static route to network 192.16.168. a static route to network 192.255. we need a wildcard in the “network” statement.16. meaning the most specific route.E Explanation: In the router ospfcommand.168.0/16 E.0 area 0 Answer: B.1 F.0/24 D.Next.168. not a subnet mask. a directly connected interface with an address of 192.0 0.16. from all the /24 routes it will choose the one with the lowest administrative distance.So.168.10. the ranges from 1 to 65535 so o is an invalid number ->but To configure OSPF. Router(config-router)# network 192. it will choose the route that has the longest match.255 area 0 F.Directly connected routes have an AD of 1 so this will be the route chosen.255. an OSPF update for network 192. What will the router consider the most reliable information about the path to that network? A. We also need to assgin an area to this process ->.0 0.10.0. it will choose the best one based on a couple of things.First.com 148 .Cisco 200-120 Exam D.168.168.255 0 E. Router(config-router)# network 192.0 255.0/24 with a local serial interface configured as the next hop Answer: A Explanation: When there is more than one way to reach a destination. Any Time.0.168.

"Pass Any Exam. 16 D. The question asks about “your active Telnet connections”. Syntax Description maximum Maximum number of parallel routes that OSPF can install in a routing table." . meaning connections from your router so the answer should be A. 8 C. show cdp neigbors B.actualtests. show vty logins Answer: B Explanation: The “show users” shows telnet/ssh connections to your router while “show sessions” shows telnet/ssh connections from your router (to other devices). The range is from 1 to 16 routes. use themaximum-pathscommand.www. Command Default 8paths QUESTION NO: 185 Which command shows your active Telnet connections? A.Cisco 200-120 Exam A. 2 B. show session C. show users D.com 149 . unlimited Answer: B Explanation: maximum-paths (OSPF) To control the maximum number of parallel routes that Open Shortest Path First (OSPF) can support. Any Time.

The Feasible Successor is a backup route to a destination which is kept in the Topology Table. although the hosts attached to Switch1 can ping the interface Fa0/0 of the router.www.actualtests.com 150 .Cisco 200-120 Exam QUESTION NO: 186 Which type of EIGRP route entry describes a feasible successor? A. The Topology Table list all the learned routers to destination whilst the Routing Table contains the best route to a destination. a backup route." . which is known as the Successor. stored in the topology table Answer: C Explanation: EIGRP uses the Neighbor Table to list adjacent routers. "Pass Any Exam. a primary route. a backup route. Any Time. stored in the topology table D. QUESTION NO: 187 The network administrator cannot connect to Switch1 over a Telnet session. stored in the routing table B. a primary route. stored in the routing table C.

Switch1(config)# line con0 Switch1(config-line)# password cisco Switch1(config-line)#login B." .com 151 . Switch1(config)# interface fa0/1 Switch1(config-if)# ip address 192.actualtests.1 D.168. Switch1(config)# interface fa0/1 "Pass Any Exam.www.255.168.24. Any Time.255.24. which of the following commands should be issued on Switch1 to correct this problem? A.Cisco 200-120 Exam Given the information in the graphic and assuming that the router and Switch2 are configured properly.0 C. Switch1(config)# interface fa0/1 Switch1(config-if)# duplex full Switch1(config-if)# speed 100 E. Switch1(config)# ip default-gateway 192.3 255.

QUESTION NO: 188 Refer to the exhibit." . etc. changed state to administratively down”. Remote access management of this switch will not be possible without configuration change.However. Which of these statements correctly describes the state of the switch once the boot process has been completed? A. the ip default-gateway command must be used.Cisco 200-120 Exam Switch1(config-if)# switchport mode trunk Answer: C Explanation: Since we know hosts can reach the router through the switch. Hence remote management of this switch is not possible unless VLAN1 "Pass Any Exam. which says “Interface VLAN1. we know that connectivity. D.actualtests. for the switch itself to reach networks outside the local one.www.com 152 . More VLANs will need to be created for this switch. As FastEthernet0/12 will be the last to come up. The switch will need a different IOS code in order to support VLANs and STP. Speed. Any Time. This shows that VLAN1 is shut down. it will be blocked by STP. Answer: B Explanation: Notice the line. B. are good.duplex. C.

These are from different network.2.www. incompatible IP address B.10. but they are unable to communicate. incorrect subnet mask D. The Atlanta router is known to have the correct configuration.11.168. you have to assume that no other VLAN interface has been configured with an IP Address. link reliability too low F. identify the fault on the Brevard router that is causing the lack of connectivity. insufficient bandwidth C.actualtests.Cisco 200-120 Exam is brought back up. Any Time. QUESTION NO: 189 Two routers named Atlanta and Brevard are connected via their serial interfaces as illustrated. A. incompatible encapsulation E.com 153 . Since VLAN1 is the only interface shown in the output.168. IPCP closed Answer: D Explanation: Because Interface Serial 0 of Atlanta Router has 192. Given the partial configurations." .1 And Interface Serial 1 of Router Brevard has 192. QUESTION NO: 190 "Pass Any Exam.

18.19.0 172. Answer: C Explanation: The default route or the static route was configured with incorrect next-hop ip address 172.0 255.0. C. F. IProute 0.18.22. The networks attached to the new router do not appear in the routing tables of the other OSPF routers.5.Cisco 200-120 Exam Users on the 172. The routing table on Coffee has not updated.actualtests.0. The network administrator connected to router Coffee via the console port. issued the show ip route command. E.0 network. The neighbor relationship table is not correctly updated.5.17.0 network. The correct IPaddress will be 172.22.0 area 0 "Pass Any Exam. IP routing is not enabled. D.0 0.www. B.0. Any Time. what is the cause of the failure? A. The FastEthernet interface on Coffee is disabled.22. and was able to ping the server.2 to reach server located on 172.31.0.22." .0 network cannot reach the server located on the 172. The network has not fully converged.0.0.2.com 154 .2 QUESTION NO: 191 A network administrator is trying to add a new router into an established OSPF network. A static route is configured incorrectly. Given the information in the partial configuration shown below.0.0. what configuration error is causing this problem? Router(config)# router ospf 1 Router(config-router)# network 10. Based on the output of the show ip route command and the topology shown in the graphic.31.

0. The AS is configured improperly. It should be the same on all routers in an OSPF routing instance.0." . The router automatically chooses the IP address of a loopback as the OSPF Router ID. The process id is configured improperly. the mask used for the network statement is a wildcard mask similar to an access list. the lowest IP address on the router becomes the OSPF Router ID. who are the other routers in our area? Router Link States (Area 1) Link IDADV RouterAgeSeq#ChecksumLink count 10.0 0.0.1201520x800002400x0046CB1 We can see OSPF Router ID will beused as source of Type 1 LSA.0. B. E.0. C.120) (Process ID 1) Next.0. B.0.0.0.” QUESTION NO: 192 Which two statements about the OSPF Router ID are true? (Choose two. Any Time.0.In this specific example. The network number is configured improperly.11210. The network subnet mask is configured improperly. the correct syntax would have been “network 10.) A.0.0.255 area 0. C.11212460x800002340x009CAC1 10.0. The network wildcard mask is configured improperly. Answer: A. The OSPF area is configured improperly.11110.12010. It identifies the source of a Type 1 LSA.actualtests.1131480x8000022C0x0043993 10. By default.0.0.Also the router will chose the highest loopback interface as its OSPF router ID (if available).Cisco 200-120 Exam A. Answer: C Explanation: When configuring OSPF.0. It is created using the MAC Address of the loopback interface.11310. D. D. F.1116000x8000023A0x0092B31 10.0.0. E.0.com 155 .0.0.D Explanation: r120#show ip ospf data OSPF Router with ID (10.www.0. "Pass Any Exam.

must have full routing information.) A. E. All areas in an Open Shortest Path First (OSPF) autonomous system must be physically connected to the backbone area (Area 0). you can use a virtual link to connect to the backbone through a non-backbone area. where this is not possible. You can also use virtual links to connect two parts of a partitioned backbone through a non-backbone area. "Pass Any Exam. It reduces the number of required OSPF neighbor adjacencies. It removes the need for virtual links. known as a transit area. It is less CPU intensive for routers in the single area.www.C Explanation: OSPF uses a LSDB (link state database) and fills this with LSAs (link state advertisement). then many of these LSA types (Summary ASBR LSA. B. The area through which you configure the virtual link.actualtests. C. It reduces the types of LSAs that are generated.com 156 . etc) will not be used and will not be generated by any router. if all locations are in a single OSPF area this is not needed. In some cases." . It increases LSA response times.However. The link types are as follows: •LSA Type 1: Router LSA •LSA Type 2: Network LSA •LSA Type 3: Summary LSA •LSA Type 4: Summary ASBR LSA •LSA Type 5: Autonomous system external LSA •LSA Type 6: Multicast OSPF LSA •LSA Type 7: Not-so-stubby area LSA •LSA Type 8: External attribute LSA for BGP If all routers are in the same area.Virtual links are not ideal and should really only be used for temporary network solutions or migrations.Cisco 200-120 Exam QUESTION NO: 193 What are two benefits of using a single OSPF area network design? (Choose two. external LSA. D. Any Time. The transit area cannot be a stub area. Answer: B.

) A. It can support multiple IPv6 subnets on a single link. It supports up to 2 instances of OSPFv3 over a common link.www. It can support multiple IPv6 subnets on a single link. "Pass Any Exam. D.com 157 . loading state > exchange state > full state > exstart state Answer: B Explanation: When OSPF adjacency is formed. exstart state > exchange state > loading state > full state C. Any Time. section 10. and Full." . a router goes through several state changes before it becomes fully adjacent with its neighbor.) A. C. B.D Explanation: QUESTION NO: 196 What are two enhancements that OSPFv3 supports over OSPFv2? (Choose two. 2-Way.html QUESTION NO: 195 What are two enhancements that OSPFv3 supports over OSPFv2? (Choose two. Exstart. exstart state > loading state > exchange state > full state B. Those states are defined in the OSPF RFC 2328. The states are (in order) Down. Loading. Init. It supports up to 2 instances of OSPFv3 over a common link. C. Exchange. It requires the use of ARP. It routes over links rather than over networks. Reference:http://www. exstart state > full state > loading state > exchange state D.Cisco 200-120 Exam QUESTION NO: 194 When a router undergoes the exchange protocol within OSPF. B.actualtests. Answer: B. in what order does it pass through each state? A. Attempt.1.com/c/en/us/support/docs/ip/open-shortest-path-first-ospf/1368513. It requires the use of ARP.cisco.

1.0.0.1.1.1. router ospf network 10.0 255.end DETAILED STEPS "Pass Any Exam. router ospf 1 network 10.configureterminal 3.0 0. router ospf 1 network 10.1.www.router ospfprocess-id 4.0 area 0 F.Cisco 200-120 Exam D.0.255.1.0 area 0 B.networkworld.1.com 158 .0.255 C. Any Time.0 0.255 area 0 D.0 255.actualtests.1.0 0.enable 2.1.0 /24 to area 0? A. It routes over links rather than over networks.1.255.255.0.html QUESTION NO: 197 What command sequence will configure a router to run OSPF and add network 10.1.1. router ospf network 10.0 0.255. router ospf area 0 network 10.0.1.1.networkip-addresswildcard-maskareaarea-id 5.D Explanation: Here is a list of the differences between OSPFv2 and OSPFv3: Reference: http://www.255 area 0 E. router ospf area 0 network 10.255 Answer: C Explanation: SUMMARY STEPS 1.0.com/article/2225270/cisco-subnet/ospfv3-for-ipv4-andipv6. Answer: B.0." .

129.0. Step2 Configureterminal Example: Device# configure terminal Enters global configuration mode. Step3 router ospfprocess-id Example: Device(config)# router ospf 109 Enables OSPF routing and enters router configuration mode.cisco.0.com/c/en/us/td/docs/ios-xml/ios/iproute_ospf/configuration/12-4t/iro12-4t-book/iro-cfg. Any Time.Cisco 200-120 Exam Command or Action Purpose Step1 Enable Example: Device> enable Enables privileged EXEC mode. Step4 Networkip-addresswildcard-maskareaarea-id Example: Device(config-router)# network 192.3 area 0 Defines an interface on which OSPF runs and defines the area ID for that interface." . Reference: http://www.com 159 .16 0. Step5 End Example: Device(config-router)# end Exits router configuration mode and returns to privileged EXEC mode.html#GUID-588D1301-F63C-4DAC-BF1C-C3735EB13673 "Pass Any Exam.www.actualtests.168.

0.actualtests.0. 1.255 area 0 B.0 0. Any Time.0. QUESTION NO: 199 What OSPF command.2.0 area 0 "Pass Any Exam.255.www. when configured.0. network 255.2.com 160 .0.1. will include all interfaces into area 0? A.2 Answer: D Explanation: If a router-id is not configured manually in the OSPF routing process the router will automatically configure a router-id determined from the highest IP address of a logical interface (loopback interface) or the highest IPaddress of an active interface.0.1. the router will compare the IP addresses of each of the interfaces and choose the highest IP address from the loopbacks.0 255.0. network 0. If the router Cisco returns the given output and has not had its router ID set manually. 192. network 0.1 C.16.168.255.0 area 0 C.Cisco 200-120 Exam QUESTION NO: 198 Refer to the exhibit. what value will OSPF use as its router ID? A.If more than one loopback interfaces are configured. 172." .255.255.0.1 B.1.1. 2.1 D.255 0.

place it in area 0. Any Time. It is globally significant and is used to identify OSPF stub areas.255 area 0 Reference: http://www. B.com 161 .asp?p=26919&seqNum=3 QUESTION NO: 200 Which statement describes the process ID that is used to run OSPF on a router? A.535.0.Cisco 200-120 Exam D. Don't get this confused with area numbers. or each router can have a different number-it just doesn't matter.0.0 255. network all-interfaces area 0 Answer: A Explanation: Example 3-1 displays OSPF with a process ID of 1 and places all interfaces configured with an IP addressin area 0.2 billion. It is locally significant and must be the same throughout an area.com/articles/article. Example 3-1Configuring OSPF in a Single Area router ospf 1 network 0.255.0. Answer: B Explanation: The Process ID for OSPF on a router is only locally significant and you can use the same number on each router. C." . The network commandnetwork 0.255. The numbers you can use are from 1 to 65.255.255 area 0dictates that you do not care (255. Topic 5.0.255. which can be from 0 to 4. It is globally significant and is used to represent the AS number. but if an IP address is enabled on any interface.255) what the IP address is. IP Services QUESTION NO: 201 "Pass Any Exam. D.www.255.actualtests.0 255.ciscopress. It is locally significant and is used to identify an instance of the OSPF database.255.

Answer: D Explanation: An address conflict occurs when two hosts use the same IP address.actualtests. F.Cisco 200-120 Exam Which statement is correct regarding the operation of DHCP? A." . A DHCP client uses a gratuitous ARP to detect a DHCP server. the address is removed from the pool and will not be reused until the server is rebooted. "Pass Any Exam. If an address conflict is detected. B. A DHCP client uses a ping to detect address conflicts. If a conflict is detected. (Reference: http://www. Any Time. the address is removed from the pool. During address assignment. DHCP checks for conflicts using ping and gratuitous ARP.com/en/US/docs/ios/12_1/iproute/configuration/guide/1cddhcp. If an address conflict is detected. the address is removed from the pool for an amount of time configurable by the administrator.cisco. E.com 162 . The address will not be assigned until the administrator resolves the conflict. D. A DHCP server uses a gratuitous ARP to detect DHCP clients. If an address conflict is detected.www. the address is removed from the pool and an administrator must resolve the conflict. C.html) QUESTION NO: 202 Refer to the exhibit.

The number 1 referred to in the ip nat inside source command references access-list number 1. QUESTION NO: 203 Which statement describes the process of dynamically assigning IP addresses by the DHCP server? A.0/24. Addresses are assigned for a fixed period of time. B.Cisco 200-120 Exam What statement is true of the configuration for this network? A. Addresses are leased to hosts. NAT facilitates end-to-end communication when IPsec is enabled." . the Serial0/0 interface address will not support the NAT configuration as shown.) A. Answer: C Explanation: The “list 1 refers to the access-list number 1. Answer: D Explanation: The DHCP lifecycle consists of the following: QUESTION NO: 204 What are two benefits of using NAT? (Choose two. Addresses are permanently assigned so that the hosts uses the same address at all times. Addresses are allocated after a negotiation between the server and the host to determine the length of the agreement.16. "Pass Any Exam. B. Any Time.com 163 . The configuration that is shown provides inadequate outside address space for translation of the number of inside addresses that are supported. D.1. a new request for an address must be made. B. at the end of the period. which periodically contact the DHCP server to renew the lease. NAT eliminates the need to re-address all hosts that require external access. D. C. ExternalRouter must be configured with static routes to networks 172.16.actualtests.www. C.2. Because of the addressing on interface FastEthernet0/1.0/24 and 172.

actualtests. By allocating specific public IP addresses to inside hosts. destination address and wildcard mask B.F Explanation: By not revealing the internal IPaddresses. NAT has to modify the source IP addresses in the packets -> E is not correct. NAT eliminates the need to re-address the inside hosts -> B is correct. Any Time. E. Answer: B. NAT conserves addresses through host MAC-level multiplexing. NAT adds some security to the inside network -> F is correct. source address and wildcard mask Answer: D Explanation: Standard ACL’s only examine the source IP address/mask todetermine if a match is "Pass Any Exam. In order for IPsec to work with NAT we need to allow additional protocols. including Internet Key Exchange (IKE). NAT accelerates the routing process because no modifications are made on the packets. Connection from the outside of the network through a “NAT” network is more difficult than a more network because IP addresses of inside hosts are hidden -> C is not correct. source address and subnet mask D. Encapsulating Security Payload (ESP) and Authentication Header (AH) -> more complex -> A is not correct. NAT does conserve addresses but not through host MAC-level multiplexing.www.com 164 . NAT protects network security because private networks are not advertised. Dynamic NAT facilitates connections from the outside of the network. It conserves addresses by allowing many private IP addresses to use the same public IP address to go to the Internet -> C is not correct. destination address and subnet mask C. F." . QUESTION NO: 205 On which options are standard access lists based? A.Cisco 200-120 Exam C. D.

A host will usually keep the same address by periodically contacting the DHCP server to renew the lease. D.actualtests.Extended ACL’s examine the source and destination address. The configuration of dynamic ACL can be read here:http://www. Addresses are permanently assigned so that the host uses the same address at all times.com/en/US/tech/tk583/tk822/technologies_tech_note09186a0080094524.sh tml QUESTION NO: 207 How does a DHCP server dynamically assign IP addresses to hosts? A. a new request for an address must be made. Answer: C Explanation: "Pass Any Exam. as well as port information.Cisco 200-120 Exam made. extended C. standard B. reflexive Answer: C Explanation: Explanation: We can use a dynamic access list to authenticate a remote user with a specific username and password. QUESTION NO: 206 A network engineer wants to allow a temporary entry for a remote user with a specific username and password so that the user can access the entire network over the Internet. Which ACL can be used? A. Addresses are assigned for a fixed period of time. The authentication process is done by the router or a central access server such as a TACACS+ or RADIUS server. B. and another address is then assigned. Addresses are allocated after a negotiation between the server and the host to determine the length of the agreement. At the end of the period.www.cisco. dynamic D. C. Any Time. Addresses are leased to hosts." .com 165 .

Only the IP detected by Ping is removed from the pool. (Reference: http://www. If a conflict is detected. This lease mechanism ensures that hosts that move or power off do not hold onto addresses that they do not need. The address remains in the pool until the conflict is resolved. The address is removed from the pool until the conflict is resolved. Answer: A Explanation: An address conflict occurs when two hosts use the same IP address. B." . D. Which rule does the DHCP server use when there is an IP address conflict? A. When a PC connects to a DHCP server. The IP will be shown. Any Time. even after the conflict is resolved.www.Cisco 200-120 Exam DHCP works in a client/server mode and operates like any other client/server relationship.com 166 .actualtests. QUESTION NO: 208 Refer to the exhibit. Only the IP detected by Gratuitous ARP is removed from the pool.cisco. The PC connects to the network with that leased IP address until the lease expires. DHCP checks for conflicts using ping and gratuitous ARP. E. During address assignment. C. The DHCP server returns these addresses to the address pool and reallocates them as necessary.html) QUESTION NO: 209 "Pass Any Exam. The address will not be assigned until the administrator resolves the conflict. the address is removed from the pool. the server assigns or leases an IP address to that PC.com/en/US/docs/ios/12_1/iproute/configuration/guide/1cddhcp. The host must contact the DHCP server periodically to extend the lease.

Cisco 200-120 Exam Refer to the exhibit. C.www. Answer: C. F. Assign and renew IP address from the default pool. The Bigtime router is unable to authenticate to the Littletime router. B. With CHAP authentication. Set the IP gateway to be used by the network.com 167 . QUESTION NO: 210 Which two tasks does the Dynamic Host Configuration Protocol perform? (Choose two. Perform host discovery used DHCPDISCOVER message. D. the configured passwords must be identical on each router.Here.actualtests. E. D. CHAP authentication cannot be used on a serial interface. it is configured as little123 on one side and big123 on the other. Answer: B Explanation: With CHAP authentication." . Provide an easy management of layer 3 devices. Any Time. The routers cannot be configured to authenticate to each other. C. one router must authenticate to another router. E. B. What is the cause of the problem? A. Monitor IP performance using the DHCP server. The passwords do not match on the two routers. Configure IP address parameters from DHCP server to a host.) A.F Explanation: "Pass Any Exam. The usernames are incorrectly configured on the two routers. The routers cannot be connected from interface S0/0 to interface S0/0.

0.) A. It involves clients and a server operating in a client-server model.0.) A. C. Answer: A. They are always present in the NAT table." .actualtests. QUESTION NO: 211 When a DHCP server is configured. broadcast address on the network C.0/16) and broadcast address (for example 23. IP address leased to the LAN D. IP address used by the interfaces E. manually assigned address to the clients F.1. When try to assign these addresses to hosts.C Explanation: "Pass Any Exam. network or subnetwork IP address B. They can be configured with access lists.DHCP servers assigns IP addresses from a pool of addresses and also assigns other parameters such as DNS and default gateways to hosts. which two IP addresses should never be assignable to hosts? (Choose two. They allow connections to be initiated from the outside.0.com 168 . to allow two or more connections to be initiated from the outside. QUESTION NO: 212 Which two statements about static NAT translations are true? (Choose two.255/24) should never be assignable to hosts. designated IP address to the DHCP server Answer: A. D.2. you will receive an error message saying that they can’t be assignable. They require no inside or outside interface markings because addresses are statically defined.1.0/8 or 13. Any Time.B Explanation: Network or subnetwork IP address (for example 11. B.www.Cisco 200-120 Exam The Dynamic Host Configuration Protocol (DHCP) is a network protocol used to configure devices that are connected to a network (known as hosts) so they can communicate on that network using the Internet Protocol (IP).

0c07. 0007. 0000. they are always present in the NAT table even if they are not actively in use.Cisco 200-120 Exam Static NAT is to map a single outside IP addressto a single inside IP address. QUESTION NO: 213 What is a valid HSRP virtual MAC address? A.B400. B.This is typically done to allow incoming connections from the outside (Internet) to theinside. The active virtual gateway will reply with its own hardware MAC address. + With HSRP version 2.Fxxx.actualtests.ACxx . QUESTION NO: 214 In GLBP.01A3 B.0C9F.5E00.AC15 D. C. 0000. which router will respond to client ARP requests? A. The active virtual gateway will reply with one of four possible virtual MAC addresses. 0007. "Pass Any Exam. The GLBP member routers will reply with one of four possible burned in hardware addresses.5E00. D. two or more devices support a virtual router with a fictitious MAC address and unique IP address.AE01 C. Note: Another case is HSRP for IPv6.0C07.73A0.0000 through 0005.73A0. the virtual MAC address if 0000. in which xx is the HSRP group. in which xxx is the HSRP group. in which the MAC address range from 0005." .0FFF. There are two version of HSRP. + With HSRP version 1.com 169 .Since these are static. All GLBP member routers will reply in round-robin fashion.B301 Answer: C Explanation: With HSRP.www. Any Time. the virtual router’s MAC address is 0000.

D. Any Time." . B. "Pass Any Exam. It causes traffic to dynamically move to higher bandwidth links. Gateway Load Balancing Protocol (GLBP) can use of up to four routers simultaneously. It ensures the best VRRP router is the virtual router master for the group. QUESTION NO: 215 Which statement describes VRRP object tracking? A. First a GLBP group must elect an Active Virtual Gateway (AVG). The AVG is responsible for replying ARP requests from hosts/clients. GLBP supports up to 1024 virtual routers. F. GLBP supports clear text and MD5 password authentication between GLBP group members.actualtests. In GLBP. GLBP can load share traffic across a maximum of four routers.com 170 . However. QUESTION NO: 216 What are three benefits of GLBP? (Choose three. D. C. GLBP elects two AVGs and two standby AVGs for redundancy. E. B. It monitors traffic flow and link utilization. other routers must wait for the primary to fail because they can be used. C.www.) A. GLBP supports up to eight virtual forwarders per GLBP group. Answer: B Explanation: Object tracking is the process of tracking the state of a configured object and uses that state to determine the priority of the VRRP router in a VRRP group. It thwarts man-in-the-middle attacks. GLBP is an open source standardized protocol that can be used with multiple vendors. there is still only one virtual IP address but each router has a different virtual MAC address.Cisco 200-120 Exam Answer: A Explanation: One disadvantage of HSRP and VRRP is that only one router is in use. It replies with different virtual MAC addresses that correspond to different routers (known as Active Virtual Forwarders – AVFs) so that clients can send traffic to different routers in that GLBP group (load sharing).

F.FXXX (XXX: HSRP group in hexadecimal).) A. The HSRP virtual IP address must be the same as one of the router's interface addresses on the LAN." .actualtests. B.0C9F. For example. Any Time.com 171 .0C07. HSRP version 2 uses a virtual MAC address of 0000. F. B.) A. The virtual IP address and virtual MA+K44C address are active on the HSRP Master router.F Explanation: The virtual MAC address of HSRP version 1 is 0000. C.ACxx. E. The HSRP virtual IP address must be on a different subnet than the routers' interfaces on the same LAN. There are more Syslog messages available within Cisco IOS than there are comparable SNMP trap messages. E. D. QUESTION NO: 218 Which three statements about Syslog utilization are true? (Choose three.F "Pass Any Exam. The HSRP default timers are a 3 second hello interval and a 10 second dead interval. HSRP group 10 uses the HSRP virtual MAC address of 0000.D.E Explanation: QUESTION NO: 217 Which three statements about HSRP operation are true? (Choose three. Answer: C. A Syslog server helps in aggregation of logs and alerts. A Syslog server provides the storage space necessary to store log files without using router disk space. D. Answer: A. The Syslog server automatically notifies the network administrator of network problems.Cisco 200-120 Exam Answer: B. HSRP supports only clear-text authentication. HSRP supports up to 255 groups per interface.www. enabling an administrative form of load balancing. Utilizing Syslog improves network performance.0C07.D.B. Enabling Syslog on a router automatically enables NTP for accurate time stamping. where xx is the HSRP group number in hexadecimal based on the respective interface. C.AC0A.

html QUESTION NO: 219 A network administrator enters the following command on a router: logging trap 3. a Cisco Catalyst 6500 switch running Cisco IOS Software Release 12. but has more than 6000 Syslog event messages. debug F. informational B. emergency C.cisco. Cisco devices can send their log messages to a UNIX-style syslog service." or "Syslog server. error Answer: B. or prints them according to a simple configuration file. this data is typically sent in clear text over the network.Cisco 200-120 Exam Explanation: The Syslog sender sends a small (less than 1KB) text message to the Syslog receiver.www.D. System logging is a method of collecting messages from devices to a server running a syslog daemon.) A.actualtests.2(18)SXF contains about 90 SNMP trap notification messages. The Syslog receiver is commonly called "syslogd. critical E. port 5000). While there are some exceptions. such as SSL wrappers.com/c/en/us/products/collateral/services/highavailability/white_paper_c11-557812. A syslog service accepts messages and stores them in files. In general." "Syslog daemon.com 172 .Logging to a central syslog server helps in aggregation of logs and alerts. For example." . What are three message types that will be sent to the Syslog server? (Choose three. Reference:http://www." Syslog messages can be sent via UDP (port 514) and/or TCP (typically. there are significantly more Syslog messages available within IOS as compared to SNMP Trap messages. warning D.A Syslog server provides the storage space necessary to store log files without using router disk space. Any Time.F Explanation: The Message Logging is divided into 8 levels as listed below: Level Keyword Description "Pass Any Exam.

Any Time.com 173 . but significant. all the logging of emergencies. For example. local5 C.Cisco 200-120 Exam 0 emergencies System is unusable 1 alerts Immediate action is needed 2 critical Critical conditions exist 3 errors Error conditions exist 4 warnings Warning conditions exist 5 notification Normal. that level and all the higher levels will be logged.www." . alerts. critical. local6 D.actualtests. conditions exist 6 informational Informational messages 7 debugging Debugging messages If you specify a level with the “loggingtrap level” command. will be logged. by using the “logging trap 3 command. QUESTION NO: 220 What is the default Syslog facility level? A. local4 B. local7 Answer: D "Pass Any Exam. and errors.

QUESTION NO: 222 Refer to the exhibit.actualtests.ciscopress. service timestamps debug datetime localtime<input type D.Cisco 200-120 Exam Explanation: By default.asp?p=426638 QUESTION NO: 221 What command instructs the device to timestamp Syslog debug messages in milliseconds? A. Cisco IOS devices. command configures the system to apply a time stamp to debugging messages.mmm. service timestamps log datetime msec Answer: B Explanation: Enable millisecond (msec) timestamps usingthe service timestamps command: router(config)#servicetimestamps debug datetime msec. With the additional keywordmsec. whereMMMis the month. CatOS switches.mmmis milliseconds. the system includes milliseconds in the time stamp.HHis the hour (in 24-hour notation). Moreover. Any Time. Reference: http://www." . in the formatHH:DD:MM:SS.MMis the minute. where . service timestamps debug datetime msec<input type C. The time-stamp format fordatetimeisMMM DD HH:MM:SS. most Cisco devices provide options to change the facility level from their default value. andSSis the second.com 174 . router(config)#service timestamps log datetime msecThe “service timestamps debug”.www.com/articles/article.DDis the date. service timestamps log datetime localtime<input type B. "Pass Any Exam. and VPN 3000 Concentrators use facility local7 while Cisco PIX Firewalls use local4 to send syslog messages.

Any Time.The last line indicates that this caused an EIGRP neighbor adjacency to go down. SNMP is defined in RFCs 3411 to 3418. set D. and that the fa0/1 interface changed to a state of administratively down. "Pass Any Exam." . to managing systems. causing the EIGRP adjacency to go down. C. causing the adjacency to go down. causing the EIGRP adjacency to go down. Interface Fa0/1 has become error disabled. The EIGRP neighbor connected to Fa0/1 is participating in a different EIGRP process.F Explanation: The SNMP framework consists of three parts: •An SNMP manager—The system used to control and monitor the activities of network devices using SNMP. D. A shut command was executed on interface Fa0/1. manager Answer: A. •A managed information base (MIB)—The collection of managed objects on the SNMP agent.This can only be done byissuing the shutdown command. •An SNMP agent—The software component within the managed device that maintains the data for the device and reports these data.www. agent C.Cisco 200-120 Exam What is the cause of the Syslog output messages? A. you must define the relationship between the manager and the agent. MIB B. supervisor F.actualtests.) A.com 175 . as needed.B. The EIGRP neighbor on Fa0/1 went down due to a failed link. B. AES E. Answer: C Explanation: The first lines of the message show that a configuration change was made. Cisco Nexus 1000V supports the agent and MIB. QUESTION NO: 223 What are three components that comprise the SNMP framework? (Choose three. To enable the SNMP agent.

" . Alert D. conditions exist 6 informational Informational messages 7 debugging Debugging messages If you specify a level with the “logging trap level” command. For example. QUESTION NO: 225 "Pass Any Exam.www. Any Time. but significant. by using the “logging trap 4 command. alerts.actualtests.E Explanation: The Message Logging is divided into 8 levels as listed below: Level Keyword Description 0 emergencies System is unusable 1 alerts Immediate action is needed 2 critical Critical conditions exist 3 errors Error conditions exist 4 warnings Warning conditions exist 5 notification Normal.C. Warning Answer: A. warnings will be logged. Notice C. all the logging of emergencies. that level and all the higher levels will be logged.cisco. critical. Emergency B.com/c/en/us/td/docs/switches/datacenter/nexus1000/sw/4_0_4_s_v_1_3/system_ management/configuration/guide/n1000v_system/n1000v_system_10snmp. Error E.com 176 . errors.html QUESTION NO: 224 What levels will be trapped if the administrator executes the command router(config)# logging trap 4 (Choose four) A.Cisco 200-120 Exam Reference: http://www.D.

(RFC 1157 replaces the earlier versions that were published as RFC 1067 and RFC 1098.) Securityis based on community strings. or other significant events. response B. closing of a TCP connection. HMAC-MD5 B. Reference: http://www.html QUESTION NO: 226 What authentication type is used by SNMPv2? A. defined in RFC 1157. capture Answer: C Explanation: An agent can send unsolicited traps to the manager.com/c/en/us/td/docs/switches/lan/catalyst2950/software/release/121_9_ea1/configuration/guide/scg/swsnmp.actualtests. SNMPv2c is an update of the protocol operations and data types of SNMPv2p (SNMPv2 Classic). and RFC 1906. MAC address tracking.cisco.com 177 . SNMPv2c (the "c" stands for "community") is an Experimental Internet Protocol defined in RFC 1901. Traps are messages alerting the SNMP manager to a condition on the network.www. loss of connection to a neighbor. Traps can mean improper user authentication. RFC 1905." . get C. restarts.Cisco 200-120 Exam What SNMP message alerts the manager to a condition on the network? A. and uses the community-based security model of SNMPv1. HMAC-SHA C. trap D. community strings Answer: D Explanation: SNMP Versions Cisco IOS software supportsthe following versions of SNMP: •SNMPv1—The Simple Network Management Protocol: A Full Internet Standard. link status (up or down). "Pass Any Exam. CBC-DES D. •SNMPv2c—The community-string based Administrative Framework for SNMPv2. Any Time.

actualtests.Cisco 200-120 Exam •SNMPv3—Version 3 of SNMP. v3 authPriv MD5 or SHA DES Provides authentication based on the HMAC-MD5 or HMAC-SHA algorithms. SNMPv3 is an interoperable standards-based protocol defined in RFCs 2273 to 2275.html "Pass Any Exam. v2c noAuthNoPriv Community String No Uses a community string match for authentication.com 178 ." . v3 noAuthNoPriv Username No Uses a username match for authentication. SNMPv3 provides secure access to devices by a combination of authenticating and encrypting packets over the network.com/c/en/us/td/docs/ios/12_2/configfun/configuration/guide/ffun_c/fcf014. Provides DES 56-bit encryption in addition to authentication based on the CBC-DES (DES-56) standard. v3 authNoPriv MD5 or SHA No Provides authentication based on the HMAC-MD5 or HMAC-SHA algorithms. SNMP Security Models and Levels Model Level Authentication Encryption What Happens v1 noAuthNoPriv Community String No Uses a community string match for authentication. Reference: http://www.cisco.www. Any Time.

MIB "Pass Any Exam. SNMPv3 added the GetBulk protocol messages to SNMP. Without authentication. no network control applications can be supported.com 179 . not between NMS stations and agents. B. Because of these deficiencies. Any Time. reducing their utility to that of a network monitor.) InformRequest messages are generally used between NMS stations. -> C is correct. SNMPv3 added the Inform protocol message to SNMP. C. SNMPv2 added the Inform protocol message to SNMP. (Traps are issued by SNMP agents when a device change occurs. -> E is correct.Cisco 200-120 Exam QUESTION NO: 227 Which three statements about the features of SNMPv2 and SNMPv3 are true? (Choose three." . E. SNMPv2 added the GetNext protocol message to SNMP. F. it is possible for nonauthorized users to exercise SNMP network management functions. Answer: A. SNMPv2 added the GetBulk protocol message to SNMP. Note: These two messages are carried over SNMPv3. GetBulkRequest allows an agent to respond with as much information as will fit in the response PDU.) A. To correct the security deficiencies of SNMPv1/v2.www. SNMPv3 was issued as a set of Proposed Standards in January 1998. many SNMPv1/v2 implementations are limited to simply a readonly capability.E Explanation: SNMPv1/v2 can neither authenticate the source of a management message nor provide encryption. It is also possible for nonauthorized users to eavesdrop on management information as it passes from managed systems to the management system.actualtests. Agents that cannot provide values for all variables in a list will send partial information. SNMPv3 enhanced SNMPv2 security features. -> A is correct.C. QUESTION NO: 228 Which three are the components of SNMP? (Choose three) A. InformRequest The InformRequest message allows NMS stations to share trap information. D. The two additional messages are added in SNMP2 (compared to SNMPv1) GetBulkRequest The GetBulkRequest message enables an SNMP manager to access large chunks of data.

SysLog Server D.Cisco 200-120 Exam B. The SNMP agent is the software component within the managed device that maintains the data for the device and reports these data. SNMP provides a standardized framework and a common language used for the monitoring and management of devices in a network. SNMP Agent E.www. The logging buffer . Other terminals "Pass Any Exam. A variety of network management applications are available for use with SNMP.com 180 . or switch).actualtests. The console terminal D. you must define the relationship between the manager and the agent. access server.RAM C. to managing systems. These features range from simple command-line applications to feature-rich graphical user interfaces (such as the CiscoWorks2000 line of products). The Management Information Base (MIB) is a virtual information storage area for network management information. The agent and MIB reside on the routing device (router. Set Answer: A. To enable the SNMP agent on a Cisco routing device. which consists of collections of managed objects." . The SNMP framework has three parts: + An SNMP manager + An SNMP agent + A Management Information Base (MIB) The SNMP manager is the system used to control and monitor the activities of network hosts using SNMP. Flash B. The term NMS can be applied to either a dedicated device used for network management. or the applications used on such a device. Any Time. as needed. SNMP Manager C.B. The most common managing system is called a Network Management System (NMS). QUESTION NO: 229 What are the Popular destinations for syslog messages to be saved? (Choose three) A.D Explanation: SNMP is an application-layer protocol that provides a message format for communication between SNMP managers and agents.

" . The logging process controls the distribution of logging messages to various destinations. Any Time. depending on your configuration.E Explanation: By default.B. Alerts C. Which 3 types of logs would be generated (choose four) A. Warnings Answer: A. Note: Syslog messages can be written to a file in Flash memory although it is not a popular place to use. or a UNIX syslog server.C.actualtests. QUESTION NO: 230 Syslog was configured with a level 3 trap.D Explanation: The Message Logging is divided into 8 levels as listed below: Level Keyword Description 0 emergencies System is unusable 1 alerts Immediate action is needed 2 critical Critical conditions exist 3 errors Error conditions exist 4 warnings Warning conditions exist 5 notification Normal. conditions exist 6 informational Informational messages 7 debugging Debugging messages The highest level is level 0 (emergencies).www. If you specify a level with the "Pass Any Exam. but significant.C. Errors E. Emergencies B. We can configure this feature with the commandlogging file flash:filename. The lowest level is level 7. such as the logging buffer (on RAM). Syslog server Answer: B.com 181 . switches send the output from system messages and debug privileged EXEC commands to a logging process.Cisco 200-120 Exam E. The process also sends messages to the console. Critical D. terminal lines (console terminal).

actualtests. Message Integrity B. has been noticed. SNMPv2 PDUs fixed this by introducing the notion of an INFORM. by using the “logging console warnings” command. Their purpose is merely to notify the other application that something has happened." . Any Time. INFORM C. TRAP B. that level and all the higher levels will be displayed. The big problem with TRAPs is that they’re unacknowledged so you don’t actually know if the remote application received your oh-so-important message to it.www. errors. critical. all the logging of emergencies. SET Answer: A. QUESTION NO: 231 What are the alert messages generated by SNMP agents called? A. Error Detection Answer: A.com 182 . GET D.B Explanation: A TRAP is a SNMP message sent from one application to another (which is typically on a remote host). warnings will be displayed. QUESTION NO: 232 Which three features are added in SNMPv3 over SNMPv2? A. etc. alerts. For example. Encryption E.C. E. which is nothing more than an acknowledged TRAP. Authentication D. Compression C.Cisco 200-120 Exam “logging console level” command.D Explanation: Cisco IOS software supports the following versions of SNMP: "Pass Any Exam.

who is responsible for the ARP request? A." .actualtests. + SNMPv2c – The community-string based Administrative Framework for SNMPv2. SNMPv2c (the “c” stands for “community”) is an Experimental Internet Protocol defined in RFC 1901. SNMPv2c is an update of the protocol operations and data types of SNMPv2p (SNMPv2 Classic). Each gateway assumes responsibility for forwarding packets sent to the virtual MAC address assigned to it by the AVG.) Security is based on community strings. defined in RFC 1157. Active Router D. The security features provided in SNMPv3 are as follows: – Message integrity: Ensuring that a packet has not been tampered with in transit. – Encryption: Scrambling the contents of a packet prevent it from being learned by an unauthorized source. SNMPv3 is an interoperable standards-based protocol defined in RFCs 2273 to 2275. AVG C. Standby Router Answer: B Explanation: Members of a GLBP group elect one gateway to be the active virtual gateway (AVG) for that group. AVF B. – Authentication: Determining that the message is from a valid source. and RFC 1906. These gateways are known as active virtual forwarders (AVFs)for their virtual MAC address. The AVG assigns a virtual MAC address to each member of the GLBP group. The AVG is responsible for answering Address Resolution Protocol (ARP) requests for the virtual "Pass Any Exam.www. + SNMPv3 – Version 3 of SNMP. and uses the community-based security model of SNMPv1. RFC 1905.com 183 . Any Time. SNMPv3 provides secure access to devices by a combination of authenticating and encrypting packets over the network. QUESTION NO: 233 In a GLBP network. Other group members provide backup for the AVG in the event that the AVG becomes unavailable. (RFC 1157 replaces the earlier versions that were published as RFC 1067 and RFC 1098.Cisco 200-120 Exam + SNMPv1 – The Simple Network Management Protocol: A Full Internet Standard.

Answer: C. + A secure port cannot be a destination port for Switched Port Analyzer (SPAN). D. + If any type of port security is enabled on the access VLAN. The sticky learning feature allows the addition of dynamically learned addresses to the running configuration.D Explanation: Follow these guidelines when configuring port security: + Port security can only be configured on static access ports. + A secure port cannot belong to a Fast EtherChannel or Gigabit EtherChannel port group. or 802. Which two statements are true? (Choose two. The network administrator can configure static secure or sticky secure MAC addresses in the voice VLAN. B. dynamic port security is automatically enabled on the voice VLAN. + You cannot configure static secure or sticky secure MAC addresses on a voice VLAN. E. Load sharing is achieved by the AVG replying to the ARP requests with different virtual MAC addresses.) A.com 184 . The network administrator can apply port security to EtherChannels. C. The network administrator can apply port security to dynamic access ports.www. and all addresses seen on the access VLAN (to which the port belongs) are learned as sticky secure addresses.cisco. "Pass Any Exam.com/en/US/docs/ios/12_2t/12_2t15/feature/guide/ft_glbp. When dynamic MAC address learning is enabled on an interface. you must set the maximum allowed secure addresses on the port to at least two. up to the maximum defined. trunk ports. Any Time.1Q tunnel ports.actualtests.html Topic 6. Network Device Security QUESTION NO: 234 A network administrator needs to configure port security on a switch. + When a voice VLAN is configured on a secure port that is also configured as a sticky secure port. all addresses seen on the voice VLAN are learned as dynamic secure addresses. + A secure port cannot be a dynamic access port. Reference: http://www. the switch can learn new addresses. + When you enable port security on an interface that is also configured with a voice VLAN.Cisco 200-120 Exam IP address." .

html) QUESTION NO: 235 DRAG DROP Drag the security features on the left to the specific security risks they help protect against on the right." . (Reference: http://www.Cisco 200-120 Exam + The switch does not support port security aging of sticky secure MAC addresses.com 185 . (Not all options are used.com/en/US/docs/switches/lan/catalyst3550/software/release/12. Any Time.actualtests. + The protect and restrict options cannot be simultaneously enabled on an interface.www.) Answer: Explanation: "Pass Any Exam.1_19_ea1/config uration/guide/swtrafc.cisco.

com 186 ." .www. If any other device is detected. The administrator configured the interface and tested it with successful pings from PC_A to RouterA.Cisco 200-120 Exam QUESTION NO: 236 Refer to the exhibit. and then observes the output from these two show "Pass Any Exam. the port is to drop frames from this device.actualtests. A junior network administrator was given the task of configuring port security on SwitchA to allow only PC_A to access the switched network through port fa0/1. Any Time.

Port security needs to be enabled on the interface. switch(config-if)#switchport mode trunk switch(config-if)#switchport port-security mac-address 1 C. switch(config-if)#switchport mode access switch(config-if)#switchport port-security maximum 1 D. B. the maximum number of devices is set to 2 so this needs to be just one if we want the single host to have access and nothing else. The port security configuration needs to be saved to NVRAM before it can become active. Answer: B.Also. F. configure the interface mode as the access mode Second. Port security needs to be globally enabled. you should perform the following configurations in the interface mode: First. Port security needs to be configured to allow only one learned MAC address.actualtests." . D. C.www. In order to satisfy the requirements of this question.D Explanation: From the output we can see that port security is disabled so this needs to be enabled. Port security interface counters need to be cleared before using the show command. E. Port security needs to be configured to shut down the interface in the event of a violation. switch(config-if)#switchport mode trunk switch(config-if)#switchport port-security maximum 1 B.com 187 . Any Time. enable the port security and set the maximum number of connections to 1. switch(config-if)#switchport mode access switch(config-if)#switchport port-security mac-address 1 Answer: C Explanation: This question is to examine the layer 2 security configuration.) A. "Pass Any Exam.Cisco 200-120 Exam commands. Which two of these changes are necessary for SwitchA to meet the requirements? (Choose two. QUESTION NO: 237 Which set of commands is recommended to prevent the use of a hub in the access layer? A.

Cisco 200-120 Exam

QUESTION NO: 238
How does using the service password-encryption command on a router provide additional
security?
A. by encrypting all passwords passing through the router
B. by encrypting passwords in the plain text configuration file
C. by requiring entry of encrypted passwords for access to the device
D. by configuring an MD5 encrypted key to be used by routing protocols to validate routing
exchanges
E. by automatically suggesting encrypted passwords for use in configuring the router
Answer: B
Explanation:
By using this command, all the (current and future) passwords are encrypted. This command is
primarily useful for keeping unauthorized individuals from viewing your password in your
configuration file

QUESTION NO: 239
Refer to the exhibit.

Statements A, B, C, and D of ACL 10 have been entered in the shown order and applied to
interface E0 inbound, to prevent all hosts (except those whose addresses are the first and last IP
of subnet 172.21.1.128/28) from accessing the network. But as is, the ACL does not restrict
anyone from the network. How can the ACL statements be re-arranged so that the system works

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Cisco 200-120 Exam
as intended?
A. ACDB
B. BADC
C. DBAC
D. CDBA
Answer: D
Explanation:
Routers go line by line through an access list until a match is found and then will not look any
further, even if a more specific of better match is found later on in theaccess list.So, it it best to
begin with the most specific entries first, in this castthe two hosts in line C and D.Then, include the
subnet (B) and then finally the rest of the traffic (A).

QUESTION NO: 240
Refer to the exhibit.

An attempt to deny web access to a subnet blocks all traffic from the subnet. Which interface
command immediately removes the effect of ACL 102?

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189

Cisco 200-120 Exam
A. no ip access-class 102 in
B. no ip access-class 102 out
C. no ip access-group 102 in
D. no ip access-group 102 out
E. no ip access-list 102 in
Answer: D
Explanation:
The “ip access-group” is used toapply and ACL to an interface.From the output shown, we know
that the ACL is applied to outbound traffic, so “no ip access-group 102 out” will remove the effect
of this ACL.

QUESTION NO: 241
Which Cisco Catalyst feature automatically disables the port in an operational PortFast upon
receipt of a BPDU?
A. BackboneFast
B. UplinkFast
C. Root Guard
D. BPDU Guard
E. BPDU Filter
Answer: D
Explanation:
We only enable PortFast feature on access ports (ports connected to end stations). But if
someone does not know he can accidentally plug that port to another switch and a loop may occur
when BPDUs are being transmitted and received on these ports.
With BPDU Guard, when a PortFast receives a BPDU, it will be shut down to prevent a loop.

QUESTION NO: 242
When you are troubleshooting an ACL issue on a router, which command would you use to verify
which interfaces are affected by the ACL?
A. show ip access-lists
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190

Cisco 200-120 Exam
B. show access-lists
C. show interface
D. show ip interface
E. list ip interface
Answer: D
Explanation:
Incorrect answer:
show ip access-lists does not show interfaces affected by an ACL.

QUESTION NO: 243 CORRECT TEXT
A network associate is adding security to the configuration of the Corp1 router. The user on host C
should be able to use a web browser to access financial information from the Finance Web Server.
No other hosts from the LAN nor the Core should be able to use a web browser to access this
server. Since there are multiple resources for the corporation at this location including other
resources on the Finance Web Server, all other traffic should be allowed.
The task is to create and apply an access-list with no more than three statements that will allow
ONLY host C web access to the Finance Web Server. No other hosts will have web access to the
Finance Web Server. All other traffic is permitted.
Access to the router CLI can be gained by clicking on the appropriate host.
All passwords have been temporarily set to "cisco".
The Core connection uses an IP address of 198.18.196.65.
The computers in the Hosts LAN have been assigned addresses of 192.168.33.1 192.168.33.254
- host A 192.168.33.1
- host B 192.168.33.2
- host C 192.168.33.3
- host D 192.168.33.4
The servers in the Server LAN have been assigned addresses of 172.22.242.17 - 172.22.242.30.
The Finance Web Server is assigned an IP address of 172.22.242.23.

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Cisco 200-120 Exam

Answer: Select the console on Corp1 router
Configuring ACL
Corp1>enable
Corp1#configure terminal
comment: To permit only Host C (192.168.33.3){source addr} to access finance server address
(172.22.242.23) {destination addr} on port number 80 (web)
Corp1(config)#access-list 100 permit tcp host 192.168.33.3 host 172.22.242.23 eq 80
comment: To deny any source to access finance server address (172.22.242.23) {destination
addr} on port number 80 (web)
Corp1(config)#access-list 100 deny tcp any host 172.22.242.23 eq 80
comment: To permit ip protocol from any source to access any destination because of the implicit
deny any any statement at the end of ACL.
Corp1(config)#access-list 100 permit ip any any
Applying the ACL on the Interface
comment: Check show ip interface brief command to identify the interface type and number by
checking the IP address configured.
Corp1(config)#interface fa 0/1
If the ip address configured already is incorrect as well as the subnet mask. This should be
corrected in order ACL to work
type this commands at interface mode :
no ip address 192.x.x.x 255.x.x.x (removes incorrect configured ipaddress and subnet mask)
Configure Correct IP Address and subnet mask:
ip address 172.22.242.30 255.255.255.240 ( range of address specified going to server is given as
172.22.242.17 - 172.22.242.30 )
Comment: Place the ACL to check for packets going outside the interface towards the finance web
server.
Corp1(config-if)#ip access-group 100 out

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Cisco 200-120 Exam
Corp1(config-if)#end
Important: To save your running config to startup before exit.
Corp1#copy running-config startup-config
Verifying the Configuration:
Step1: show ip interface brief command identifies the interface on which to apply access list.
Step2: Click on each host A, B, C, & D. Host opens a web browser page, Select address box of
the web browser and type the ip address of finance web server (172.22.242.23) to test whether it
permits /deny access to the finance web Server.
Step 3: Only Host C (192.168.33.3) has access to the server. If the other host can also access
then maybe something went wrong in your configuration.Check whether you configured correctly
and in order.
Step 4: If only Host C (192.168.33.3) can access the Finance Web Server you can click on NEXT
button to successfully submit the ACL SIM.

QUESTION NO: 244
Refer to exhibit.

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193

but not password. An ACL is blocking Telnet access. Answer: C Explanation: The login keyword has been set." . C.www.com 194 . A Level 5 password is not set. Any Time. D. "Pass Any Exam. What is the cause of this failure? A. but none set” message to users trying to telnet to this router.Cisco 200-120 Exam A network administrator cannot establish a Telnet session with the indicated router. B.This will result in the “password required.actualtests. The vty password is missing. The console password is missing.

access-list 50 deny 192.Cisco 200-120 Exam QUESTION NO: 245 Which statement about access lists that are applied to an interface is true? A.1.148. D. 192. It means: + We cannot have 2 inbound access lists on an interface + We can have 1 inbound and 1 outbound access list on an interface QUESTION NO: 246 Which item represents the standard IP ACL? A.com 195 . Answer: C Explanation: We can have only 1 access list per protocol. per direction.147.255 C." .0. Any Time.) "Pass Any Exam.0. 192. QUESTION NO: 247 A network administrator is configuring ACLs on a Cisco router. Which two ACL statements.1 0.168.1 eq 22 Answer: B Explanation: The standard access lists are ranged from 1 to 99 and from 1300 to 1999 so only access list 50 is a standard access list. You can apply multiple access lists with the same protocol or in different directions.1 D. C.168. access-list 110 permit ip any any B.www.168. You can place as many access lists as you want on any interface. per direction and per interface. B. and 192.168. would you use to accomplish this task? (Choose two. You can apply only one access list on any interface.168.168.168.1.0.1. per Layer 3 protocol. access list 101 deny tcp any host 192.actualtests.0 only.149. You can configure one access list. access-list 2500 deny tcp any host 192.146. when combined.0. to allow traffic from hosts on networks 192.0.

148. E.0 255. D.255 D.0.168.168.0.0 and 192.0 0. Moreover.255” would allow only the 192.0 0.168.148.255 F.149.255 E. access-list 10 permit ip 192.Cisco 200-120 Exam A.147.255.255.0.) A.168.146.255” would allow only the 192.actualtests.0. access-list 10 permit ip 192." .168.0 networks.255. Any Time.255 C.255. access-list 10 permit ip 192.148.0 0. Administratively shut down the interface.0 and 192.0 Answer: A.0.147. C.0 0.149.1.C Explanation: “access-list 10 permit ip 192.168.168. Enter an access list and apply it to the virtual terminal interfaces using the access-class command.168. The most simple way to secure the virtual terminal interface is to configure a username & password to prevent unauthorized login.146. QUESTION NO: 248 What can be done to secure the virtual terminal interfaces on a router? (Choose two.146.0 0.168. To apply an access list to a virtual terminal interface we must use the “access-class” command.146.0. "Pass Any Exam. B.168. Physically secure the interface.146.1. The “access-group” command is only used to apply an access list to a physical interface -> C is not correct. access-list 10 permit ip 192. Create an access list and apply it to the virtual terminal interfaces with the access-group command.168.E Explanation: It is a waste to administratively shut down the interface. access-list 10 permit ip 192.www.com 196 .1.0.0 networks. someone can still access the virtual terminal interfaces via other interfaces -> We cannot physically secure a virtual interface because it is “virtual” ->.0 0. Configure a virtual terminal password and login process. and “access-list 10 permit ip 192.0 0. Answer: D.168.255 B.0. access-list 10 permit ip 192.1.

com 197 . SW1#show running-config D.D Explanation: Explanation: We can verify whether port security has been configured by using the “show running-config” or “show port-security interface” for more detail. SW1#show port-security interface FastEthernet 0/12 E." .actualtests. An example of the output of “show port-security interface” command is shown below: QUESTION NO: 250 Refer to the exhibit.www. Any Time.) A.Cisco 200-120 Exam QUESTION NO: 249 Which two commands correctly verify whether port security has been configured on port FastEthernet 0/12 on a switch? (Choose two. "Pass Any Exam. SW1#show switchport port-secure interface FastEthernet 0/12 C. SW1#show switchport port-security interface FastEthernet 0/12 Answer: C. SW1#show port-secure interface FastEthernet 0/12 B.

B.) A. the port does not forward ingress traffic that has source addresses outside the group of defined addresses.FFFF. will be forwarded out fa0/1.Cisco 200-120 Exam The following commands are executed on interface fa0/1 of 2950Switch. F.aaaa will be forwarded out fa0/1." . D. What two functions will occur when this frame is received by 2950Switch? (Choose two. If you limit the "Pass Any Exam. E. You can use port security with dynamically learned and static MAC addresses to restrict a port's ingress traffic by limiting the MAC addresses that are allowed to send traffic into the port.00bb. specifically port security using sticky addresses. C.com 198 . the first learned MAC address of 2950Switch.bbbb. 2950Switch(config-if)# switchport port-security 2950Switch(config-if)# switchport port-security mac-address sticky 2950Switch(config-if)# switchport port-security maximum 1 The Ethernet frame that is shown arrives on interface fa0/1. Answer: B. This frame will be discarded when it is received by 2950Switch.FFFF.D Explanation: The configuration shown here is an example of port security. Only frames from source 0000. Hosts B and C may forward frames out fa0/1 but frames arriving from other switches will not be forwarded out fa0/1. All frames arriving on 2950Switch with a destination of 0000.actualtests. When you assign secure MAC addresses to a secure port. The MAC address table will now have an additional entry of fa0/1 FFFF.00aa. Any Time.www. Only host A will be allowed to transmit frames on fa0/1.

QUESTION NO: 251 What will be the result if the following configuration commands are implemented on a Cisco switch? Switch(config-if)# switchport port-security Switch(config-if)# switchport port-security mac-address sticky A. Port security with sticky MAC addresses retains dynamically learned MAC addresses during a link-down condition. Not all categories are used. Statically configured MAC addresses are saved in the running-configuration file if frames from that address are received. Any Time.www. Topic 7.Cisco 200-120 Exam number of secure MAC addresses to one and assign a single secure MAC address. Each router output line is the result of a show ip interface command. the device attached to that port has the full bandwidth of the port. Troubleshooting QUESTION NO: 252 DRAG DROP Drag each category on the left to its corresponding router output line on the right. Answer: B Explanation: In the interface configuration mode. E.actualtests. A dynamically learned MAC address is saved in the running-configuration file. A dynamically learned MAC address is saved in the startup-configuration file. D.com 199 . When entering this command. A dynamically learned MAC address is saved in the VLAN database. "Pass Any Exam. the interface converts all the dynamic secure MAC addresses to sticky secure MAC addresses. Statically configured MAC addresses are saved in the startup-configuration file if frames from that address are received. the command switchport port-security mac-address sticky enables sticky learning. but sticky MAC addresses can be learned dynamically." . C. Port security with sticky MAC addresses provides many of the same benefits as port security with static MAC addresses. B.

There is only one special case with the statement “…. "Pass Any Exam. from the output “Serial0/1 is up. line protocol is down” we know that it is a layer 2 problem because the first statement (Serial0/1 is up) is good while the last statement (line protocol is down) is bad. Any Time.www. line protocol is down”. is administrator down." . both layers are down so the problem belongs to Layer 1. the last statement is for Layer 2 and if Layer 1 is down then surely Layer 2 will be down too”.Cisco 200-120 Exam Answer: Explanation: A simple way to find out which layer is having problem is to remember this rule: “the first statement is for Layer 1.com 200 . we know that the port is currently disabled and shut down by the administrators. line protocol is down”. For example. For the statement “Serial0/1 is down. In this case. so you have to check Layer 1 before checking Layer 2.actualtests.

straightthrough. We do this by simply making a ping to the loopback interface "Pass Any Exam. drag each procedure on the left to its proper category on the right. in this case an Ethernet cable connection. the signal on the cable is acceptable… Next we “verify NIC operation”. Answer: Explanation: The question asks us to “begin with the lowest layer” so we have to begin with Layer 1: verify physical connection.actualtests." .Cisco 200-120 Exam QUESTION NO: 253 DRAG DROP A user is unable to connect to the Internet. Any Time. rollover…) is correct. For your information. “verify Ethernet cable connection” means that we check if the type of connection (crossover. Based on the layered approach to troubleshooting and beginning with the lowest layer.com 201 . the RJ45 headers are plugged in.www.

F. A network administrator attempts to ping Host2 from Host1 and receives the results that are shown. TCP/IP is not functioning on Host1 C. The message destination host unreachable from Router1 indicates that the problem occurs when the data is forwarded from Host1 to Host2. The link between Host1 and Switch1 is down. B. For example. The default gateway on Host1 is incorrect.com 202 . If it works then the NIC card (layer 1." . We are using a URL so this step belongs to layer 7 of the OSI model. Any Time. What is the problem? A.www. E. QUESTION NO: 254 Refer to the exhibit. D. Interface Fa0/0 on Router1 is shutdown. Verify IP configuration belongs to layer 3. Answer: C Explanation: Host1 tries to communicate with Host2. The link between Router1 and Router2 is down. microsoft. 2) and TCP/IP stack (layer 3) are working properly. According to "Pass Any Exam. checking if the IP can be assignable for host.actualtests.0.com.0.1.Cisco 200-120 Exam 127. the PC’s IP is in the same network with the gateway… Verifying the URL by typing in your browser some popular websites like google. The link between Switch1 and Router1 is down.com to assure that the far end server is not down (it sometimes make we think we can’t access to the Internet).

Interface S0/0 on RouterA is configured with an incorrect subnet mask. what are two possible reasons for the failure? (Choose two. we can infer that the link between Router1 and Router2 is down. "Pass Any Exam.It is enabled.2." .F Explanation: From the output we can see that there is a problemwith the Serial 0/0 interface. The cable that is connected to S0/0 on RouterA is faulty. Interface S0/0 on RouterA is not receiving a clock signal from the CSU/DSU.actualtests.168. Based on the output from RouterA.www. but the line protocol is down. C. Therecould be a result of mismatched encapsulation or the interface not receiving a clock signal from the CSU/DSU.0 are unable to reach hosts in network 192. B. The encapsulation that is configured on S0/0 of RouterB does not match the encapsulation that is configured on S0/0 of RouterA. E. Any Time. QUESTION NO: 255 Refer to the exhibit.168. F.com 203 . The IP address that is configured on S0/0 of RouterB is not in the correct subnet.0. Answer: E. Hosts in network 192.) A.Cisco 200-120 Exam the topology. Interface S0/0 on RouterB is administratively down. D.3.

session layer E. network layer Answer: E Explanation: The command ping uses ICMP protocol. The command ping is often used to verify the network connectivity. application layer C. An administrator pings the default gateway at 10.10.www. "Pass Any Exam. At which OSI layer is the problem? A. QUESTION NO: 257 Refer to the exhibit." . access layer D.actualtests. so it works at the network layer.Cisco 200-120 Exam QUESTION NO: 256 Refer to the exhibit. Any Time.10. which is a network layer protocol used to propagate control message between host and router. data link layer B.com 204 .1 and sees the output as shown.

E. D. C. Ensure cable A is plugged into a trunk port. Reboot all of the devices. Ensure the switch has power. "Pass Any Exam.D. What would be the most effective steps to troubleshoot this physical layer problem? (Choose three. power and how they are plugged in.) A. Ensure that cables A and B are straight-through cables." .F Explanation: The ports on the switch are not up indicating it is a layer 1 (physical) problem so we should check cable type.www. Answer: B.actualtests. Ensure that the Ethernet encapsulations match on the interconnected router and switch ports. QUESTION NO: 258 Refer to the exhibit. B. F. Any Time. Reseat all cables.Cisco 200-120 Exam The two connected ports on the switch are not turning orange or green.com 205 .

www.2.224.1. The IP information of member Host A in VLAN1 is as follows: Address : 10.254 The IP information of member Host B in VLAN2 is as follows: Address : 10.2. F.2.1.0 Gateway : 10.1 -.1.126 Mask : 255. B.0 Gateway : 10. Configure the gateway on Host B as 10.1.1.X Mask : 255.1. Configure the IP address of Host B as 10.1.1.1.1.2.254/24 VLAN2 It is obvious that the configurations of the gateways of members in VLAN2 and the associated network segments are wrong.12 Mask : 255.2.1.10.1.1.) A.255. C. Configure the masks on both hosts to be 255.255.0 "Pass Any Exam." . Answer: B.1.1.254.10.Cisco 200-120 Exam The network shown in the diagram is experiencing connectivity problems.2.254/24 VLAN1 Fa0/0.com 206 .254 The configuration of sub-interface on router 2 is as follows: Fa0/0. Which of the following will correct the problems? (Choose two. Configure the IP address of Host A as 10.255.255.1.2 -. The layer3 addressing information of Host B should be modified as follows: Address : 10. Configure the gateway on Host A as 10.255.actualtests.D Explanation: The switch 1 is configured with two VLANs: VLAN1 and VLAN2. Configure the masks on both hosts to be 255.240. E.255.255.1.255. D.255. Any Time.1.255.2.

STP creates a loopfree tree structure consisting of leaves and branches that span the entire Layer 2 network." . Any Time.com 207 . B. connections between switches are assumed to be trunks. In addition. Note that the terms bridge and switch are used interchangeably when discussing STP. What would be an effect of this cable being disconnected? A. C. The transfer of files from Host B to the server in VLAN9 would be significantly slower. "Pass Any Exam. Communication between VLAN3 and the other VLANs would be disabled. It is suspected that the cable connected to switch port Fa0/9 on Switch1 is disconnected.www. Host B would not be able to access the server in VLAN9. D. Host B would not be able to access the server in VLAN9 until the cable is reconnected. For less than a minute. Answer: D Explanation: Spanning-Tree Protocol (STP) is a Layer 2 protocol that utilizes a special-purpose algorithm to discover physical loops in a network and effect a logical loop-free topology. The actual mechanics of how bridges communicate and how the STP algorithm works will be discussed at length in the following topics.actualtests. unless otherwise indicated. A problem with network connectivity has been observed.Cisco 200-120 Exam QUESTION NO: 259 Refer to the exhibit. Then normal network function would resume.

www. HostA is not on the same subnet as its default gateway.1.64 Broadcast address: 192. Answer: D Explanation: Now let’s find out the range of the networks on serial link: For the network 192. The Fa0/0 interface on RouterB is using a broadcast address.168.com 208 .actualtests.Cisco 200-120 Exam QUESTION NO: 260 Refer to the exhibit.1.62/27: Increment: 32 Network address: 192." .1. Any Time. B. HostA cannot ping HostB. The Fa0/0 interface on RouterA is on a subnet that can't be used.63 For the network 192.1.168. The address of SwitchA is a subnet address.95 -> These two IP addresses don’t belong to the same network and they can’t see each other.32 Broadcast address: 192.168.65/27: Increment: 32 Network address: 192. C.1. E. The serial interfaces of the routers are not on the same subnet. what is the cause of this problem? A. Assuming routing is properly configured.168.1.168. D.168. "Pass Any Exam.

" . and show interfaces are all validtroubleshooting IOS commands.F Explanation: Ping.Tracert. ipconfig.) A. show interfaces Answer: A. "Pass Any Exam.Cisco 200-120 Exam QUESTION NO: 261 Which router IOS commands can be used to troubleshoot LAN connectivity problems? (Choose three. ipconfig D. show ip route E. ping B. QUESTION NO: 262 A network administrator is troubleshooting the OSPF configuration of routers R1 and R2. not IOS. The routers cannot establish an adjacency relationship on their common Ethernet link. tracert C. show ip route.D.www.actualtests. Any Time.com 209 . The graphic shows the output of the show ip ospf interface e0 command for routers R1 and R2. winipcfg F. and winipcfg are PC commands.

what is the cause of this problem? A. Answer: D Explanation: In OSPF. A backup designated router needs to be added to the network. QUESTION NO: 264 An administrator is trying to ping and telnet from SwitchC to RouterC with the results shown below.Cisco 200-120 Exam Based on the information in the graphic. B. in an improperly implemented redundant topology E. QUESTION NO: 263 In which circumstance are multiple copies of the same unicast frame likely to be transmitted in a switched LAN? A. It is an example of an improperly implemented redundant topology. The OSPF process ID numbers must match.www. The OSPF area is not configured properly. during high traffic periods B. when upper-layer protocols require high reliability D. F. The priority on R1 should be set higher.com 210 .actualtests. C. The cost on R1 should be set higher. The hello and dead timers are not configured properly. the hello and dead intervals must match and here we can see the hello intervalis set to 5 on R1 and 10 on R2. after broken links are re-established C. "Pass Any Exam. when a dual ring topology is in use Answer: D Explanation: If we connect two switches via 2 or more links and do not enable STP on these switches then a loop (which creates multiple copies of the same unicast frame) will occur. E.The dead interval is also set to 20 on R1 but it is 40 on R2. D." . Any Time.

" . Any Time.www.Cisco 200-120 Exam Click the console connected to RouterC and issue the appropriate commands to answer the questions.com 211 .actualtests. "Pass Any Exam.

Cisco 200-120 Exam "Pass Any Exam. Any Time.com 212 .www.actualtests." .

Cisco 200-120 Exam "Pass Any Exam.com 213 .actualtests." .www. Any Time.

" .www.actualtests.com 214 .Cisco 200-120 Exam "Pass Any Exam. Any Time.

Cisco 200-120 Exam Which will fix the issue and allow ONLY ping to work while keeping telnet disabled? A. Change the ip access-group command on fa0/0 from “in” to “out”." .www. Correctly assign an IP address to interface fa0/1.actualtests.com 215 . B. Any Time. "Pass Any Exam.

Cisco 200-120 Exam C. D. "Pass Any Exam.actualtests. Removeaccess-group 102 outfrom interface s0/0/0 and addaccess-group 114 in E. Any Time. Removeaccess-group 106 infrom interface fa0/0 and addaccess-group 115 in. Removeaccess-group 106 infrom interface fa0/0 and addaccess-group 104 in. Remember that the access list 104 is applied on the inbound direction so the 5th line “access-list 104 deny icmp any any echo-reply” will not affect our icmp traffic because the “echo-reply” message will be sent over the outbound direction.com 216 .www." . Answer: E Explanation: Let’s have a look at the access list 104: The question does not ask about ftp traffic so we don’t care about the two first lines. QUESTION NO: 265 An administrator is trying to ping and telnet from SwitchC to RouterC with the results shown below. The 3rd line denies all telnet traffic and the 4th line allows icmp traffic to be sent (ping).

Any Time.Cisco 200-120 Exam Click the console connected to RouterC and issue the appropriate commands to answer the questions." .actualtests.com 217 . "Pass Any Exam.www.

" .com 218 . Any Time.Cisco 200-120 Exam "Pass Any Exam.actualtests.www.

Cisco 200-120 Exam "Pass Any Exam.com 219 .www. Any Time.actualtests." .

Any Time.Cisco 200-120 Exam What would be the effect of issuing the command ip access-group 114 in to the fa0/0 interface? A.www.4.0 network.com 220 . It would allow all traffic from the 10. "Pass Any Exam.4. Attempts to telnet to the router would fail." .actualtests. B.

Cisco 200-120 Exam C. Answer: B Explanation: From the output of access-list 114: access-list 114 permit ip 10.4.4.4. Routing protocol updates for the 10.0/24 network QUESTION NO: 266 An administrator is trying to ping and telnet from SwitchC to RouterC with the results shown below.0.255 any we can easily understand that this access list allows all traffic (ip) from 10.www.4. D.4.4.0." .0 network would not be accepted from the fa0/0 interface.com 221 . "Pass Any Exam. Click the console connected to RouterC and issue the appropriate commands to answer the questions.actualtests. IP traffic would be passed through the interface but TCP and UDP traffic would not.0 0. Any Time.

actualtests.com 222 .www." . Any Time.Cisco 200-120 Exam "Pass Any Exam.

Cisco 200-120 Exam "Pass Any Exam.actualtests.com 223 . Any Time.www." .

" .actualtests. Any Time.Cisco 200-120 Exam "Pass Any Exam.com 224 .www.

"Pass Any Exam.com 225 ." .Cisco 200-120 Exam What would be the effect of issuing the command ip access-group 115 in on the s0/0/1 interface? A. No host could connect to RouterC through s0/0/1.www. Any Time.actualtests.

Answer: A Explanation: First let’s see what was configured on interface S0/0/1: QUESTION NO: 267 CORRECT TEXT CCNA. C.168.www. CCNA. FTP-DATA. IP addresses are listed in the chart below. All over interconnectivity and Internet access for the existing locations of the company are working properly.com 226 .com has a small network that is using EIGRP as its IGP. MGT Fa0/0 – 192.4.27. The task is to identify the fault(s) and correct the router configuration(s) to provide full connectivity between the routers.33 S1/0 – 198. All passwords on all routers are cisco. Currently.0.168. D.6 S0/0 – 192. FTP. Access to the router CLI can be gained by clicking on the appropriate host. Telnet and ping would work but routing updates would fail.4. the ENG router does not have connectivity to the ISP router. Router MGT is also running static routing to the ISP.Cisco 200-120 Exam B. and www would work but telnet would fail. All routers should be running an EIGRP AS number of 12.9 "Pass Any Exam. Any Time.0 network would pass through the interface. Only traffic from the 10.actualtests. echo.com has recently added the ENG router.77.18." .

168.168.1 Parts1 Fa0/0 – 192.65 Fa0/1 – 192.12.50.81 S0/1 – 192.Cisco 200-120 Exam S0/1 – 192.12.actualtests.168.168.12.com 227 .168.12.12.10 Parts2 Fa0/0 – 192.50. Any Time.21 ENG Fa0/0 – 192.168." .27.33 Fa0/1 – 192.168.17 Fa0/1 – 192.22 "Pass Any Exam.www.49 S0/0 – 192.34 Fa1/0 – 192.168.12.168.77.168.

Cisco 200-120 Exam Answer: On the MGT Router: Config t Router eigrp 12 Network 192.The basic router configuration .www. Any Time.168.com 228 ." .The appropriate interfaces have been configured for NAT inside and NAT outside.77. "Pass Any Exam.actualtests.0 QUESTION NO: 268 CORRECT TEXT The following have already been configured on the router: .

Functionality can be tested by clicking on the host provided for testing. The task is to complete the NAT configuration using all IP addresses assigned by the ISP to provide Internet access for the hosts in the Weaver LAN.www.105 to 198.184. Therefore we have to use NAT overload (or PAT) Double click on the Weaver router to open it Router>enable Router#configure terminal "Pass Any Exam.30.actualtests.100.184. Answer: The company has 14 hosts that need to access the internet simultaneously butwe just have 6 public IP addresses from 198.18.The appropriate static routes have also been configured (since the company will be a stub network.18. The hosts in the company LAN have been assigned private space addresses in the range of 192.184.100.105 .18.All passwords have been temporarily set to “cisco”.100. The company has 14 hosts that need to access the internet simultaneously.17 – 192.Cisco 200-120 Exam .184.18." .192.18.110/29. The ISP has provided the company six public IP addresses of 198. no routing protocol will be required) . Configuration information: router name – Weaver inside global addresses – 198.168.168.110.110/29 inside local addresses .30/28 number of inside hosts – 14 A network associate is configuring a router for the weaver company to provide internet access.18.184.105 198.com 229 .100.17 – 192. Any Time.184.168.198.168.

114 QUESTION NO: 269 CORRECT TEXT Central Florida Widgets recently installed a new router in their office.2.18.30.184.168.0.16 0.100. specifying the access list that was definedin the prior step.110 netmask 255.18. into anaddress from the pool named mypool (the pool contains addresses from198.0.110). Overloadkeyword allows to map multiple IP addresses to a single registered IPaddress (many-toone) by using different ports. Configure the router per the following requirements: Name of the router is R2 Enable. secret password is cisco "Pass Any Exam.105 to 198. The question said that appropriate interfaces have been configured for NATinside and NAT outside statements.17 to 192.105 198.100. Any Time.168.114 The ping should work well and you will be replied from 192.184.Cisco 200-120 Exam First you should change the router's name to Weaver Router(config)#hostname Weaver Create a NAT pool of global addresses to be allocated with their netmask.255.www. just for yourunderstanding: Weaver(config)#interface fa0/0 Weaver(config-if)#ip nat inside Weaver(config-if)#exit Weaver(config)#interface s0/0 Weaver(config-if)#ip nat outside Weaver(config-if)#end Finally. This is how to configure the NAT inside and NAT outside.0. Complete the network installation by performing the initial router configurations and configuring R1PV2 routing using the router command line interface (CLI) on the RC.2.184. Weaver(config)#ip nat inside source list 1 pool mypool overload This command translates all source addresses that pass access list 1." . we should save all your work with the following command: Weaver#copy running-config startup-config Check your configuration by going to "Host for testing" and type: C :\>ping 192. whichmeans a source address from 192.0.actualtests.18.18.com 230 . Weaver(config)#access-list 1 permit 192. Weaver(config)#ip nat pool mypool 198.248 Create a standard access control list that permits the addresses that are to betranslated.100.184.168.15 Establish dynamic source translation.255.

Enable.0/27 . please note the following.0.actualtests." . Interfaces should be enabled. IP information Answer: Router>enable Router#config terminal Router(config)#hostnameR2 R2(config)#enable secret Cisco 1 R2(config)#line console 0 R2(config-line)#passwordCisco 2 R2(config-line)#exit R2(config)#line vty 0 4 R2(config-line)#passwordCisco 3 R2(config-line)#login R2(config-line)#exit R2(config)#interface faO/0 "Pass Any Exam.2. Name or the router is xxx 2.router has last assignable host address in the subnet.165. the actual information will prevail.Cisco 200-120 Exam The password to access user EXEC mode using the console is cisco2 The password to allow telnet access to the router is cisco3 IPV4 addresses must be configured as follows: Ethernet network 209. Router protocol is RIPV2 Attention: In practical examinations.router has fourth assignable host address in subnet Serial network is 192. Password In access user EXEC mode using the console is xxx 4.com 231 . Any Time.176/28 .201. The password to allow telnet access to the router is xxx 5.www. 1. secret password is xxx 3.

165.2.0.201.255. all other traffic should be allowed. No other hosts from the LAN nor the Core should be able to use a web browser to access this server.255.224 R2(config)#interface s0/0/0 R2(config-if)#ip address 192. All other traffic is permitted. Since there are multiple resources for the corporation at this location including other resources on the Finance Web Server.actualtests.0." .201.Cisco 200-120 Exam R2(config-if)#ip address 209.240 R2(config-if)#no shutdown R2(config-if)#exit R2(config)#router rip R2(config-router)#version 2 R2(config-router)#network 209. No other hosts will have web access to the Finance Web Server.255.165.176 R2(config-router)#end R2#copy run start QUESTION NO: 270 CORRECT TEXT A network associate is adding security to the configuration of the Corp1 router.4 255.255.com 232 .0 R2(config-router)#network 192. The task is to create and apply an access-list with no more than three statements that will allow ONLY host C web access to the Finance Web Server.2. Any Time. "Pass Any Exam. The user on host C should be able to use a web browser to access financial information from the Finance Web Server.www.190 255.

To report and alert link up / down instances.254 .18. To identify applications causing congestion.240.65 The computers in the Hosts LAN have been assigned addresses of 192. understand who is utilizing the network and the network top talkers. + Reduction in peak WAN traffic Use NetFlow statistics to measure WAN traffic improvement from application-policy changes.240. To confirm the appropriate amount of bandwidth that has been allocated to each Class of Service. Answer: A.www. The Core connection uses an IP address of 198.1 host 172.host C 192." .22.141.240.host B 192. bandwidth hogs.actualtests. E.168.26 eq www Corp1(config)# access-list 128 deny tcp any host 172.240. All passwords have been temporarily set to "cisco".168.2 .D.168. + Analyze new applications and their network impact Identify new application network loads such as VoIP or remote site additions.168.host A 192.141.240.) A.168.247.Cisco 200-120 Exam Access to the router CLI can be gained by clicking on the appropriate host.F Explanation: NetFlow facilitates solutions to many common problems encountered by IT professionals.240.168. and bandwidth utilization. Any Time.1 .com 233 . C.26 eq www Corp1(config)# access-list 128 permit ip any any Corp1(config)#int fa0/1 Corp1(config-if)#ip access-group 128 out Corp1(config-if)#end Corp1#copy run startup-config QUESTION NO: 271 What are three reasons to collect Netflow data on a company network? (Choose three. "Pass Any Exam. D.1 192.3 Answer: Corp1#conf t Corp1(config)# access-list 128 permit tcp host 192. To authorize user network access. B. To detect suboptimal routing in the network. To diagnose slow network performance. F.22.

+ Validation of QoS parameters Confirm that appropriate bandwidth has been allocated to each Class of Service (CoS) and that no CoS is over. which is configured for the flow monitor and stored in the flow monitor cache. + Detection of unauthorized WAN traffic Avoid costly upgrades by identifying the applications causing congestion.-> F is correct. the following example creates a flow monitor named FLOW-MONITOR-1 and enters Flexible NetFlow flow monitor configuration mode: Router(config)# flow monitor FLOW-MONITOR-1 Router(config-flow-monitor)# QUESTION NO: 273 "Pass Any Exam. Any Time. Flow monitors consist of a record and a cache.www. + Security and anomaly detection NetFlow can be used for anomaly detection and worm diagnosis along with applications such as Cisco CS-Mars. -> A is correct.com 234 . You add the record to the flow monitor after you create the flow monitor. flow monitor B. flow record C. flow sampler D. QUESTION NO: 272 What Netflow component can be applied to an interface to track IPv4 traffic? A. The flow monitor cache is automatically created at the time the flow monitor is applied to the first interface.actualtests. Flow data is collected from the network traffic during the monitoring process based on the key and nonkey fields in the record. flow exporter Answer: A Explanation: Flow monitors are the Flexible NetFlow component that is applied to interfaces to perform network traffic monitoring. -> D is correct.or under-subscribed. For example." . bandwidth hogs and bandwidth utilization quickly with command line interface or reporting tools.Cisco 200-120 Exam + Troubleshooting and understanding network pain points Diagnose slow network performance.

Cisco 200-120 Exam What Cisco IOS feature can be enabled to pinpoint an application that is causing slow network performance? A.com 235 .html QUESTION NO: 274 What command visualizes the general NetFlow data on the command line? A.cisco.www.actualtests.com/c/en/us/products/collateral/ios-nx-os-software/iosnetflow/prod_white_paper0900aecd80406232. The following is the original NetFlow show command used for many years in Cisco IOS Software. Also shown is a show MLS command to view the hardware cache on the Cisco Catalyst 6500 Series Switch. basic statistics about number of flows and export timer setting. There are three methods to visualize the data depending on the version of Cisco IOS Software. The traditional show command for NetFlow is "show ip cache flow" also available are two forms of top talker commands." . Netflow C. Information provided includes packet size distribution. "Pass Any Exam. show mls netflow ip Answer: C Explanation: The following is an example of how to visualize the NetFlow data using the CLI. show mls sampling E. a view of the protocol distribution statistics and the NetFlow cache. show ip flow export B. WCCP D. show ip flow top-talkers C. Reference: http://www. One of the top talkers commands uses a static configuration to view top talkers in the network and another command called dynamic top talkers allows real-time sorting and aggregation of NetFlow data. bandwidth hogs and bandwidth utilization quickly with command line interface or reporting tools. IP SLA Answer: B Explanation: Netflow can be used to diagnose slow network performance. show ip cache flow D. SNMP B. Any Time.

Cisco 200-120 Exam The “show ip cache flow” command displays a summary of the NetFlow accounting statistics. destination IP address F.D. source MAC address C.E Explanation: "Pass Any Exam. Reference: http://www. IP next-hop Answer: A.www.cisco.html QUESTION NO: 275 What are three values that must be the same within a sequence of packets for Netflow to consider them a network flow? (Choose three.) A. ingress interface E.com/c/en/us/products/collateral/ios-nx-os-software/iosnetflow/prod_white_paper0900aecd80406232." . source IP address B.com 236 . Any Time. egress interface D.actualtests.

Any Time. Traditionally.) A. IP Packet attributes used by NetFlow: • IP source address • IP destination address • Source port • Destination port • Layer 3 protocol type • Class of Service • Router or switch interface All packets with the same source/destination IP address.Cisco 200-120 Exam Each packet that is forwarded within a router or switch is examined for a set of IP packet attributes.html QUESTION NO: 276 What are three factors a network administrator must consider before implementing Netflow in the network? (Choose three. This methodology of fingerprinting or determining a flow is scalable because a large amount of network information is condensed into a database of NetFlow information called the NetFlow cache.actualtests. Some symptoms of high CPU utilization are very large jitter and increased delay. an IP Flow is based on a set of 5 and up to 7 IP packet attributes.com/c/en/us/products/collateral/ios-nx-os-software/iosnetflow/prod_white_paper0900aecd80406232." . source/destination ports.www. These attributes are the IP packet identity or fingerprint of the packet and determine if the packet is unique or similar to other packets.C Explanation: NetFlow has a reputation for increasing CPU utilization on your network devices. SNMP version F. WAN encapsulation Answer: A. but you will still want to check it out before you turn on the feature. port availability E. Cisco's performance testing seems to indicate that newer hardware can accommodate this load pretty well. protocol interface and class of service are grouped into a flow and then packets and bytes are tallied. CPU utilization B.cisco.com 237 . Reference: http://www. where Netflow data will be sent C.B. Services running on the device may also "Pass Any Exam. number of devices exporting Netflow data D.

Any Time. Depending on how much traffic you have and how you configure it. B. you may not want to send NetFlow data from a datacenter switch to a NetFlow collector on the other side of a small WAN circuit. There is a speed mismatch between SW1's Fa0/1 and SW2's Fa0/1 interfaces. the traffic can be substantial.www.techtarget. For example. If the devices produced the given output.com/tip/How-the-NetFlow-protocol-monitorsyour-WAN QUESTION NO: 277 Refer to the exhibit." . Another thing to keep in mind is the amount of data you're going to be sending across the network. D. Answer: D Explanation: "Pass Any Exam. what is the cause of the EtherChannel problem? A. There is an MTU mismatch between SW1's Fa0/1 and SW2's Fa0/1 interfaces. There is an encapsulation mismatch between SW1's Fa0/1 and SW2's Fa0/1 interfaces.actualtests.Cisco 200-120 Exam be affected. SW1's Fa0/1 interface is administratively shut down. C. Reference: http://searchenterprisewan. Also bear in mind that the flows from aggregating large numbers of devices can add up.com 238 .

+ Network Planning – NetFlow can be used to capture data over a long period of time producing the opportunity to track and anticipate network growth and plan upgrades to increase the number of routing devices. backbone upgrade planning. and routing policy planning. This information may then be utilized to efficiently plan and allocate access. + User Monitoring and Profiling – NetFlow data enables network engineers to gain detailed understanding of customer/user utilization of network and application resources.bandwidth interfaces. Any Time.Based on the output shown. Accounting/Billing Answer: A. ports. NetFlow services data optimizes network planning including peering. and allocate network and application resources (e. Network.D Explanation: NetFlow traditionally enables several key customer applications including: + Network Monitoring – NetFlow data enables extensive near real time network monitoring capabilities. + Application Monitoring and Profiling – NetFlow data enables network managers to gain a detailed. backbone and application resources as well as to detect and resolve potential security and policy violations. time-based. or higher. SW1 is configured to run at 10Mb while SW2 is operating at 100 Mb. QUESTION NO: 278 What are the benefits of using Netflow? (Choose three.www. understand new services. Security Analysis D. NetFlow "Pass Any Exam.Application & User Monitoring B.actualtests. Network Planning C.) A.Cisco 200-120 Exam You must configure all interfaces in an EtherChannel to operate at the same speeds and duplex modes. view of application usage over the network.C. and rapid problem resolution. efficient troubleshooting. Web server sizing and VoIP deployment) to responsively meet customer demands." . This information is used to plan.com 239 . Flow-based analysis techniques may be utilized to visualize traffic patterns associated with individual routers and switches as well as on a network-wide basis (providing aggregate traffic or application based views) to provide proactive problem detection.g.

quality of service. capacity. application usage. switches. IP SLA D. Enterprise customers may utilize the information for departmental charge-back or cost allocation for resource utilization. Netflow B. WCCP C. Note: A managed device is a part of the network that requires some form of monitoring and management (routers. NetFlow detects unwanted WAN traffic. The data is also a valuable forensic tool to understand and replay the history of security incidents.) for highly flexible and detailed resource utilization accounting. Changes in network behavior indicate anomalies that are clearly demonstrated in NetFlow data. servers. and reliability. timestamps. messages like this might appear in the router console: %SNMP-3-CPUHOG: Processing [chars] of [chars] They mean that the SNMP agent on the device has taken too much time to process a request. etc." . packet and byte counts.com 240 . flow data includes details such as IP addresses. viruses and worms in realtime. "Pass Any Exam.www. + Security Analysis – NetFlow identifies and classifies DDOS attacks. QUESTION NO: 279 Which protocol can cause overload on a CPU of a managed device? A. You can determine the cause of high CPU use in a router by using the output of the show process cpu command. Any Time. printers…). Service providers may utilize the information for billing based on time-of-day.actualtests. SNMP Answer: D Explanation: Sometimes. validates bandwidth and Quality of Service (QOS) and allows the analysis of new network applications. workstations. bandwidth usage. NetFlow will give you valuable information to reduce the cost of operating your network. etc.Cisco 200-120 Exam helps to minimize the total cost of network operations while maximizing network performance.g. + Accounting/Billing – NetFlow data provides fine-grained metering (e. type-of-service and application ports.

These attributes are the IP packet identity or fingerprint of the packet and determine if the packet is unique or similar to other packets. L3 protocol type E. Any Time. IP address B. "Pass Any Exam.actualtests.C. MAC address Answer: A.com 241 .www. Port numbers D.D Explanation: What is an IP Flow? Each packet that is forwarded within a router or switch is examined for a set of IP packet attributes. Interface name C.Cisco 200-120 Exam QUESTION NO: 280 What are the three things that the Netflow uses to consider the traffic to be in a same flow? (Choose three) A. Traditionally. Your company has decided to connect the main office with three other remote branch offices using point-to-point serial links. an IP Flow is based on a set of 5 and up to 7 IP packet attributes. You are required to troubleshoot and resolve OSPF neighbor adjacency issues between the main office and the routers located in the remote branch offices. IP Packet attributes used by NetFlow: + IP source address + IP destination address + Source port + Destination port + Layer 3 protocol type + Class of Service + Router or switch interface QUESTION NO: 281 Scenario: Refer to the topology." .

Cisco 200-120 Exam "Pass Any Exam. Any Time.actualtests.com 242 ." .www.

com 243 .www." . Any Time.Cisco 200-120 Exam "Pass Any Exam.actualtests.

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com 245 . an encapsulation mismatch on serial links. There is a Layer 2 issue. The R3 router ID is configured on R4. D. Any Time.www. There is an OSPF hello and dead interval mismatch. There is an area ID mismatch. "Pass Any Exam. C.actualtests. What is causing the problem? A.Cisco 200-120 Exam An OSPF neighbor adjacency is not formed between R3 in the main office and R4 in the Branch1 office." . B.

Your company has decided to connect the main office with three other remote branch offices using point-to-point serial links.www.actualtests." . You are required to troubleshoot and resolve OSPF neighbor adjacency issues between the main office and the routers located in the remote branch offices.Cisco 200-120 Exam Answer: A Explanation: A show running-config command on R3 and R4 shows that R4 is incorrectly configured for area 2: QUESTION NO: 282 Scenario Refer to the topology.com 246 . Any Time. "Pass Any Exam.

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D. Any Time. a password mismatch. "Pass Any Exam. B.They are 50 and 200 on R3 and 10 and 40 on R5.actualtests. There is a missing network command in the OSPF process on R5. There is an area ID mismatch.com 250 . There is an OSPF hello and dead interval mismatch." .Cisco 200-120 Exam An OSPF neighbor adjacency is not formed between R3 in the main office and R5 in the Branch2 office. Answer: C Explanation: The “show ip ospf interface command on R3 and R5 shows that the hello and dead intervals do not match. What is causing the problem? A. C. There is a PPP authentication issue.www.

" . Any Time. "Pass Any Exam.Cisco 200-120 Exam QUESTION NO: 283 Scenario: Refer to the topology. You are required to troubleshoot and resolve OSPF neighbor adjacency issues between the main office and the routers located in the remote branch offices.com 251 . Your company has decided to connect the main office with three other remote branch offices using point-to-point serial links.actualtests.www.

com 252 .Cisco 200-120 Exam "Pass Any Exam." .www. Any Time.actualtests.

com 253 ." .Cisco 200-120 Exam "Pass Any Exam.www. Any Time.actualtests.

Configure no shutdown command. D.com 254 . Any Time. R2 ethernet0/1 and R3 ethernet0/0are configured with a non-default OSPF hello interval of 25. "Pass Any Exam. configure no ip ospf hello-interval 25. Enable OSPF for R1 ethernet0/1.www.actualtests." .Cisco 200-120 Exam R1 does not form an OSPF neighbor adjacency with R2. configure ip ospf 1 area 0 command under ethernet0/1. R1 ethernet0/1 is shutdown.configure no ip ospf hello-interval 25. Which option would fix the issue? A. R1 ethernet0/1 configured with a non-default OSPF hello interval of 25. C. B.

Cisco 200-120 Exam Answer: B Explanation: Looking at the configuration of R1. Any Time." . Your company has decided to connect the main office with three other remote branch offices using point-to-point serial links.www.actualtests. You are required to troubleshoot and resolve OSPF neighbor adjacency issues between the main office and the routers located in the remote branch offices.com 255 . QUESTION NO: 284 Scenario Refer to the topology. we see that R1 is configured with a hello interval of 25 on interface Ethernet 0/1 while R2 is left with the default of 10 (not configured). "Pass Any Exam.

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www. Any Time." .com 258 .Cisco 200-120 Exam "Pass Any Exam.actualtests.

Any Time.www." . What is causing the problem? A.actualtests. C. There is an OSPF hello and dead interval mismatch. "Pass Any Exam. B. The R3 router ID is configured on R6.com 259 . There is an area ID mismatch. D. There is a PPP authentication issue. the username is not configured on R3 and R6.Cisco 200-120 Exam An OSPF neighbor adjacency is not formed between R3 in the main office and R6 in the Branch3 office.

respectively. Use the appropriate show commands to troubleshoot the issues. You are required to troubleshoot and resolve the EIGRP issues between the various routers.Cisco 200-120 Exam Answer: D Explanation: Using the show running-config command we see that R6 has been incorrectly configured with the same router ID as R3 under the router OSPF process. and R3 with serial links. Your company has connected the routers R1. R2.www.actualtests." . SW1 and SW2 are also connected to the routers R4 and R5. R2 and R3 are connected to the switches SW1 and SW2. The EIGRP routing protocol is configured. QUESTION NO: 285 Scenario Refer to the topology. Any Time.com 260 . "Pass Any Exam.

actualtests.com 261 ." .www.Cisco 200-120 Exam "Pass Any Exam. Any Time.

Any Time." .Cisco 200-120 Exam "Pass Any Exam.actualtests.www.com 262 .

www. Any Time.actualtests." .Cisco 200-120 Exam "Pass Any Exam.com 263 .

" .www. Any Time.com 264 .actualtests.Cisco 200-120 Exam "Pass Any Exam.

actualtests.4.com 265 . and the network command is missing on R4.4.4.4. Why are the interfaces missing? A. C.Cisco 200-120 Exam The loopback interfaces on R4 with the IP addresses of 10.Authentication method and key strings Here.0.www.K values .4/32. Any Time. R4 has been incorrectly configured to be in another AS. we see that R4 is configured for EIGRP AS 2.5/32. B. the following must match: .Neighbors must be in the same subnet .4. Answer: B Explanation: For an EIGRP neighbor to form.AS numbers . and 10. The loopback addresses haven't been advertised. The interfaces are shutdown.0 network is displayed. D. so it does not peer with R5. so they are not being advertised.4.0. so only the 10. 10. "Pass Any Exam. when it should be AS 1.6/32 are not appearing in the routing table of R5." . Automatic summarization is enabled.

www." .actualtests. Your company has connected the routers R1. respectively. SW1 and SW2 are also connected to the routers R4 and R5. "Pass Any Exam. Use the appropriate show commands to troubleshoot the issues.Cisco 200-120 Exam QUESTION NO: 286 Scenario Refer to the topology. Any Time. You are required to troubleshoot and resolve the EIGRP issues between the various routers. and R3 with serial links.com 266 . R2 and R3 are connected to the switches SW1 and SW2. The EIGRP routing protocol is configured. R2.

Cisco 200-120 Exam "Pass Any Exam.www. Any Time.actualtests." .com 267 .

" .com 268 .Cisco 200-120 Exam "Pass Any Exam.actualtests.www. Any Time.

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Cisco 200-120 Exam "Pass Any Exam.actualtests. Any Time.www." .com 270 .

5 and 10.Then. C." . D. which we see from the diagram is the link to R2.55 the preferred path is via Serial 1/3. using the “show ip route” command on R1 we can see that to reach 10.5. The traffic is unequally load-balanced over R2 and R3.5.Cisco 200-120 Exam Which path does traffic take from R1 to R5? A.5.5. B. Any Time. The traffic goes through R3.www. The traffic goes through R2. The traffic is equally load-balanced over R2 and R3. Answer: A Explanation: Using the “show ip int brief command” on R5 we can see the IP addresses assigned to this router. "Pass Any Exam.com 271 .actualtests.

Any Time. The EIGRP routing protocol is configured.com 272 . R2. Your company has connected the routers R1. "Pass Any Exam. and R3 with serial links. respectively. Use the appropriate show commands to troubleshoot the issues. You are required to troubleshoot and resolve the EIGRP issues between the various routers. R2 and R3 are connected to the switches SW1 and SW2.Cisco 200-120 Exam QUESTION NO: 287 Scenario Refer to the topology.actualtests. SW1 and SW2 are also connected to the routers R4 and R5." .www.

com 273 .Cisco 200-120 Exam "Pass Any Exam.www." .actualtests. Any Time.

com 274 .www. Any Time.actualtests." .Cisco 200-120 Exam "Pass Any Exam.

" .actualtests.www. Any Time.com 275 .Cisco 200-120 Exam "Pass Any Exam.

C. What is the cause for this misconfiguration? A. Any Time. D.com 276 .www. "Pass Any Exam." . The K values mismatch.Cisco 200-120 Exam Router R6 does not form an EIGRP neighbor relationship correctly with router R1. The network command is missing. B. The passiveinterface command is enabled. The AS does not match.actualtests.

168.0 network: "Pass Any Exam. they are both using e0/0.com 277 .Cisco 200-120 Exam Answer: C Explanation: The link from R1 to R6 is shown below: As you cansee. Any Time.www.actualtests.16.The IP addresses are in the 192." .

16. respectively. R2. R2 and R3 are connected to the switches SW1 and SW2. the “network 192.www.Cisco 200-120 Exam But when we look at the EIGRP configuration.actualtests. and R3 with serial links.0” command is missing on R6. Any Time.168. SW1 and SW2 are also connected to the routers R4 and R5. Your company has connected the routers R1. QUESTION NO: 288 Scenario Refer to the topology. The EIGRP routing protocol is configured." .com 278 . "Pass Any Exam.

Cisco 200-120 Exam You are required to troubleshoot and resolve the EIGRP issues between the various routers.com 279 .actualtests. Use the appropriate show commands to troubleshoot the issues.www. Any Time." . "Pass Any Exam.

Cisco 200-120 Exam "Pass Any Exam. Any Time.com 280 ." .actualtests.www.

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C. B.1. "Pass Any Exam. we see that the 10. The network statement is missing on R5.www.1. Answer: C Explanation: R5 does not have a route to the 10. The IP address that is configured on the Lo1 interface on R5 is incorrect.5.1 network statement is missing on R1. The loopback interface is shut down on R5.1 ……. 100-byte ICMP Echos to 10." .1.1.actualtests.1. Success rate is 0 percent (0/5) Why are the pings failing? A. Any Time.1. D.5.Cisco 200-120 Exam Study the following output taken on R1: R1# Ping 10. which is the loopback0 IP address of R1.When looking at the EIGRP configuration on R1.1 network.55 source 10. The network statement is missing on R1.5.1.55.1 Type escape sequence to abort. Sending 5. timeout is 2 seconds: Packet sent with a source address of 10.com 283 .5.1.

B.actualtests. The PVC is configured correctly and is operating normally.www. is operating normally.com 284 . What does this mean? A.Cisco 200-120 Exam Topic 8. Any Time. WAN Technologies QUESTION NO: 289 The output of the show frame-relay pvc command shows "PVC STATUS = INACTIVE". but no data packets have been detected for more than five minutes. "Pass Any Exam. The PVC is configured correctly. and is no longer actively seeking the address of the remote router." .

This status is rarely seen so it is ignored in some books.) Answer: "Pass Any Exam. but the connection to the remote router is not available + DELETED: the PVC is not present and no LMI information is being received from the Frame Relay switch + STATIC: the Local Management Interface (LMI) mechanism on the interface is disabled (by using the “no keepalive” command). The DCE device creates and sends the report to the DTE devices. is operating normally.Cisco 200-120 Exam C. (Not all acronyms are used. Answer: D Explanation: The PVC STATUS displays the status of the PVC.com 285 .www. and is waiting for interesting traffic to trigger a call to the remote router." . QUESTION NO: 290 DRAG DROP Drag the Frame Relay acronym on the left to match its definition on the right. Any Time. but there is a problem on the remote end of the PVC. The PVC is not configured on the local switch.actualtests. The PVC is configured correctly. There are 4 statuses: + ACTIVE: the PVC is operational and can transmit data + INACTIVE: the connection from the local router to the switch is working. D. The PVC is configured correctly on the local switch. E.

Cisco 200-120 Exam Explanation: QUESTION NO: 291 Refer to the exhibit. Any Time." .com 286 .www. which IP addresses would be assigned to the interfaces with point-to- "Pass Any Exam.actualtests. In the Frame Relay network.

2 /24 DLCI 28: 192.168. Router(config-if)# authentication ppp chap fallback ppp D.3 /24 DLCI 28: 192.1 /24 DLCI 17: 192. Router(config-if)# authentication ppp chap pap Answer: B Explanation: This command tells the router firsttouse CHAP and then go to PAP if CHAP isn't available.1 /24 DLCI 99: 192.168.168.2 /24 DLCI 99: 192.168.2 /24 DLCI 28: 192. "Pass Any Exam.168.168. Any Time. QUESTION NO: 292 Which command is used to enable CHAP authentication.12.Similarly.11.168.1 /24 DLCI 17: 192.168.1 /24 DLCI 28: 192.1 /24 DLCI 99: 192.168.1 /24 DLCI 99: 192.10.Cisco 200-120 Exam point PVCs? A. DLCI 16: 192.13. DLCI 16: 192.10.168.168.1 /24 DLCI 17: 192.168.10.10." .168.11.10. Router(config-if)# ppp authentication chap fallback ppp B. The R2-R1 connection (DLCI 16 to 99) would have eachrouter within the same subnet.10.168. but it must be in a differentone than the R2-R1 connection. DLCI 16: 192.actualtests. on a serial interface? A. Router(config-if)# ppp authentication chap pap C.10. with PAP as the fallback method. each connection needs to be in a separate subnet. DLCI 16: 192.1 /24 C.3 /24 B.4 /24 Answer: C Explanation: With point to point PVC’s. the R3-R1 connection would also be in the same subnet.com 287 .2 /24 D.10.10.11.10.10.www.168.1 /24 DLCI 17: 192.168.

L2TP C. Layer 3 C.com 288 . and data authentication between participating peers at the IP layer. to provide secure end-to-end communications? A. data integrity.Cisco 200-120 Exam QUESTION NO: 293 Which protocol is an open standard protocol framework that is commonly used in VPNs. PPTP Answer: C Explanation: IPSec is a framework of open standards that provides data confidentiality. RSA B. Layer 2 B.www. Any Time. IPsec D. PPP was originally emerged as an encapsulation protocol for transporting IP traffic between two peers. Layer 4 D. QUESTION NO: 294 At which layer of the OSI model does PPP perform? A.actualtests. IPSec can be used to protect one or more data flows between IPSec peers." . Layer 5 Answer: A Explanation: The Point-to-Point Protocol (PPP) provides a standard method for transporting multi-protocol datagrams over point-to-point links. It is a data link layer protocol (layer 2 in the OSI model) "Pass Any Exam.

www.actualtests. This command should be executed from the global configuration mode.121. DSL D.C Explanation: The Point-to-Point Protocol (PPP) provides a standard method for transporting multi-protocol datagrams over point-to-point links. It is a data link layer protocol used for WAN connections. PPP B.Cisco 200-120 Exam QUESTION NO: 295 The command frame-relay map ip 10. Ethernet Answer: A. WAP C. The IP address 10. allowing the routing protocol updates that use the broadcast update mechanism to be forwarded across itself. D." . L2TPv3 E. This command is required for all Frame Relay configurations. Which of the following statements is true concerning this command? A. so the PVC supports broadcast.121. E. C. as it can be used to connect networks. QUESTION NO: 296 Which two options are valid WAN connectivity methods? (Choose two.com 289 . to be forwarded across the PVC.16. Any Time.8 102 broadcast was entered on the router. The broadcast option allows packets. "Pass Any Exam. DSL is also considered a WAN connection.8 is the local router port used to forward data. B. Answer: E Explanation: Broadcast is added to the configurations of the frame relay.16. such as RIP updates. PPP was originally emerged as an encapsulation protocol for transporting IP traffic between two peers. 102 is the remote DLCI that will receive the information.) A. typically when used with VPN technology.

such as Password Authentication Protocol (PAP) and Challenge Handshake Authentication Protocol (CHAP). IETF B. PPP was designed to work with several network layer protocols.com 290 . X. You can test with your Cisco router when typing the command Router(config-if)# encapsulation frame-relay ?on a WAN link.actualtests. HDLC Answer: A Explanation: Explanation: Cisco supports two Frame Relay encapsulation types: theCisco encapsulationand theIETF Frame Relay encapsulation. Below is the output of this command (notice Cisco is the default encapsulation so it is not listed here. PPP also has built-in security mechanisms. Frame Relay Answer: B Explanation: PPP: Provides router-to-router and host-to-network connections over synchronous and asynchronous circuits. QUESTION NO: 298 Which encapsulation type is a Frame Relay encapsulation type that is supported by Cisco routers? A. Q9333-A Annex A D. PPP C. including IP." .25 D. HDLC B. just press Enter to use it). which is in conformance with RFC 1490 and RFC 2427.www. The former is often used to connect two Cisco routers while the latter is used to connect a Cisco router to a non-Cisco router. Any Time. ANSI Annex D C.Cisco 200-120 Exam QUESTION NO: 297 Which Layer 2 protocol encapsulation type supports synchronous and asynchronous circuits and has built-in security mechanisms? A. "Pass Any Exam.

255. But we guess there is a typo in the output. what is the most likely cause of the problem? A.0.100. Any Time.16.100. incorrect IP address Answer: C Explanation: First we have to say this is an unclear question and it is wrong. incorrect bandwidth configuration B. Cisco. Cisco. "Pass Any Exam.1 255.0 command should be “ip address 172. HDLC is a WAN protocol same as Frame-Relay and PPP so it is not a Frame Relay encapsulation type.0. and Q933a. and ITU Q933-A (Annex A) LMI types. incorrect map statement D.0.16.actualtests. respectively. Both routers are running IOS version 12." . QUESTION NO: 299 RouterA is unable to reach RouterB. After reviewing the command output and graphic. They represent the ANSI Annex D. QUESTION NO: 300 Refer to the exhibit. The “frame-relay map ip” statement is correct thus none of the four answers above is correct. That makes answer C correct. incorrect LMI configuration C.Cisco 200-120 Exam Note: Three LMI options are supported by Cisco routers are ansi.255.www.2 255. Maybe the “ip address 172.0.com 291 .

However.1 from a DHCP server. The DLCI 100 will be dynamically changed as required to adapt to changes in the Frame Relay cloud. the device knows the Layer 3 IP address and needs to know the remote data link MAC address.actualtests.16. D. Any Time.16. The Serial0/0 interface is passing traffic.16. dynamic address mapping takes place automatically. it updates its DLCI-to-Layer 3 address mapping table. How should the network administrator configure the serial interface of the main office router to make the connection? A.com 292 . Dynamic address mapping is enabled by default for all protocols enabled on a physical interface. the router knows the Layer 2 address which is the DLCI. The DLCI 100 was dynamically allocated by the router. The mapping between DLCI 100 and the end station IP address 172. Inverse ARP works much the same way Address Resolution Protocol (ARP) works on a LAN. with ARP. With Inverse ARP. The router at the remote office is a non-Cisco router.1." . When using dynamic address mapping. C. no static address mapping is required. The Serial0/0 interface acquired the IP address of 172.1 was learned through Inverse ARP.www. E.3.3. but needs to know the remote Layer 3 IP address. Answer: E Explanation: Inverse Address Resolution Protocol (Inverse ARP) was developed to provide a mechanism for dynamic DLCI to Layer 3 address maps.252 "Pass Any Exam.Cisco 200-120 Exam What is the meaning of the term dynamic as displayed in the output of the show frame-relay map command shown? A. Inverse ARP requests a next-hop protocol address for each active PVC. Therefore. QUESTION NO: 301 A network administrator needs to configure a serial link between the main office and a remote location. If the Frame Relay environment supports LMI autosensing and Inverse ARP. B.255. Once the requesting router receives an Inverse ARP response.1 255. Main(config)# interface serial 0/0 Main(config-if)# ip address 172.255.

increased security since all traffic is encrypted.255.D. Main(config)# interface serial 0/0 Main(config-if)# ip address 172. particularly when multiple locations are involved.255.252 Main(config-if)# encapsulation ppp Main(config-if)# no shut C. scalability F.255.These include reduced cost. increased security E.255.16.actualtests." .com 293 . Main(config)# interface serial 0/0 Main(config-if)#ip address 172.The default.Cisco 200-120 Exam Main(config-if)# no shut B. reduced latency Answer: A.16.255. Main(config)# interface serial 0/0 Main(config-if)# ip address 172.252 Main(config-if)#encapsulation ietf Main(config-if)# no shut Answer: B Explanation: With serial point to point links there are two options for the encapsulation. is Cisco proprietary and worksonly with other Cisco routers.1. and increased scalability as s single WAN link can be used to connect to all locations in a VPN. QUESTION NO: 302 What are three reasons that an organization with multiple branch offices and roaming users might implement a Cisco VPN solution instead of point-to-point WAN links? (Choose three.16.255.) A. "Pass Any Exam.1 255. Any Time.1. broadband incompatibility D.www. reduced cost B.E Explanation: IPsec offer a number of advantages over point to point WAN links.1 255.1.252 Main(config-if)# encapsulation frame-relay Main(config-if)# authentication chap Main(config-if)# no shut D.The other option is PPP which is standards based and supported by all vendors. where as a point to point link would need to be provisioned to each location. better throughput C. HDLC.1 255.

0x6430).4.status defined. active Serial0/0 (up): ip 10.) A. dynamic.actualtests. the number of BECN packets that are received by the router B." .1dlci 401(0x191. "Pass Any Exam..com 294 .4. The network administrator suspects that the link is overloaded.4.www.4dlci 401(0x191.0x6410). CISCO.status defined. Any Time. the IP address of the local router Answer: B. broadcast. the value of the local DLCI C.status defined. active Serial0/0 (up): ip 10. dynamic.0x6410). static..4.D Explanation: Sample “show frame-relay map” output: R1#sh frame map Serial0/0 (up): ip 10. the status of the PVC that is configured on the router E.4.3dlci 403(0x193. the number of FECN packets that are received by the router D. active QUESTION NO: 304 Users have been complaining that their Frame Relay connection to the corporate site is very slow. broadcast.4.Cisco 200-120 Exam QUESTION NO: 303 Which two statistics appear in show frame-relay map output? (Choose two.

in FECN packets 147 E.actualtests.com 295 . etc. QUESTION NO: 305 Which command allows you to verify the encapsulation type (CISCO or IETF) for a Frame Relay link? "Pass Any Exam. overloaded resources. in BECN packets 192 D. it will set the BECN bit on packets being returned to the sending device and the FECN bit on the packets being sent to the receiving device. oversubscribed port. congestion being full buffers. which output value indicates to the local router that traffic sent to the corporate site is experiencing congestion? A." . in DE packets 0 Answer: C Explanation: If device A is sending data to device B across a Frame Relay infrastructure and one of the intermediate Frame Relay switches encounters congestion. Any Time. DLCI = 100 B.www.Cisco 200-120 Exam Based on the partial output of the Router# show frame relay pvc command shown in the graphic. last time PVC status changed 00:25:40 C.

C. Configure static Frame Relay map entries for each subinterface network. Configure each subinterface with its own IP address. All TCP traffic is marked discard eligible.C. "Pass Any Exam.Each subinterface will then have its own IP address. and no IP address will be assigned to the main interface. Check the encapsulation type on the Cisco device with theshow frame-relay map exec command. Encapsulate the physical interface with multipoint PPP. show frame-relay pvc D. B. Answer: A. B. Create the virtual interfaces with the interface command.www. Remove the IP address from the physical interface. Any Time.D Explanation: For multiple PVC’s on a single interface. show frame-relay lmi B. F. you must use subinterfaces. E.Cisco 200-120 Exam A. Disable split horizon to prevent routing loops between the subinterface networks." .com 296 . show interfaces serial Answer: B Explanation: When connecting Cisco devices with non-Cisco devices. QUESTION NO: 307 What occurs on a Frame Relay network when the CIR is exceeded? A. with each subinterface configured for each PVC. show frame-relay map C. Which of the following procedures are required to accomplish this task? (Choose three.) A. QUESTION NO: 306 It has become necessary to configure an existing serial interface to accept a second Frame Relay virtual circuit.actualtests. you must use IETF4 encapsulation on both devices. All UDP traffic is marked discard eligible and a BECN is sent. D.

CHAP has no protection from playback attacks. CHAP uses a three-way handshake. All traffic exceeding the CIR is marked discard eligible. This happens at the time of establishing the initial link (LCP).www. All TCP traffic is marked discard eligible and a BECN is sent.) A. and may happen again at any time afterwards. Note: In the Frame Relay frame format. Frames that are sent in excess of the CIR are marked as discard eligible (DE) which means they can be dropped if the congestion occurs within the Frame Relay network.actualtests. CHAP authentication periodically occurs after link establishment. CHAP uses a two-way handshake. The verification is based on a shared secret (such as the client user's password). CHAP authentication is performed only upon link establishment. there is a bit called Discard eligible (DE) bit that is used to identify frames that are first to be dropped when the CIR is exceeded. C. CHAP authentication passwords are sent in plaintext.C Explanation: CHAP is an authentication scheme used by Point to Point Protocol (PPP) servers to validate the identity of remote clients. CHAP periodically verifies the identity of the client by using a three-way handshake." . Any Time. B. D.Cisco 200-120 Exam C. QUESTION NO: 309 Refer to the exhibit. E. QUESTION NO: 308 Which two statements about using the CHAP authentication mechanism in a PPP link are true? (Choose two. F. Answer: D Explanation: Committed information rate (CIR): The minimum guaranteed data transfer rate agreed to by the Frame Relay switch. D.com 297 . "Pass Any Exam. Answer: B.

D.www. QUESTION NO: 310 What is the result of issuing the frame-relay map ip 192. Any Time. defines the source IP address that is used in all broadcast packets on DCLI 202 C.168.2 IP address Answer: D Explanation: This command identifies the DLCI that should be used for all packets destined to the 192. Answer: C Explanation: DLCI-Data Link Connection Identifier Bits: The DLCI serves to identify the virtual connection so that the receiving end knows which information connection a frame belongs to.1.2 "Pass Any Exam.actualtests. DLCI 17 is the Layer 2 address used by R2 to describe a PVC to R3. defines the DLCI that is used for all packets that are sent to the 192.com 298 .2 IP address are received D." . C. DLCI 17 describes the ISDN circuit between R2 and R3.168. Frame Relay is strictly a Layer 2 protocol suite. DLCI 17 describes a PVC on R2.1. B. Note that this DLCI has only local significance. DLCI 17 describes the dial-up circuit from R2 and R3 to the service provider.1.1. It cannot be used on R3 or R1. defines the DLCI on which packets from the 192.168. defines the destination IP address that is used in all broadcast packets on DCLI 202 B.168.Cisco 200-120 Exam Which statement describes DLCI 17? A.2 202 broadcast command? A.

compression of PPP header fields. emulating virtual point to point leased lines. QUESTION NO: 311 Which PPP subprotocol negotiates authentication options? A.Cisco 200-120 Exam address. LCP E. Answer: B. you cannot assign multiple interfaces in a router that belong to the same IP subnet. They create split-horizon issues. C.www.actualtests. and multilink options. Any Time. Common LCP options include the PPP MRU. B.com 299 .Remember. They require the use of NBMA options when using OSPF. NCP B. LPC negotiates link and PPP parameters to dynamically configure the data link layer of a PPP connection.) A. the authentication protocol.Each subinterface requires a unique IP address/subnet. QUESTION NO: 312 What are two characteristics of Frame Relay point-to-point subinterfaces? (Choose two. They emulate leased lines. DLCI Answer: D Explanation: The PPP Link Control Protocol (LCP) is documented in RFC 1661." . D. ISDN C. They require a unique subnet within a routing domain. "Pass Any Exam. They are ideal for full-mesh topologies.In this case. E. DLCI 202 should be used. callback. SLIP D.C Explanation: Subinterfaces are used for point to point frame relay connections.

status defined.. broadcast. show frame relay end-to-end Answer: C Explanation: Sample “show frame-relay map” output: R1#sh frame map Serial0/0 (up): ip 10. CISCO.www.4. show frame-relay map D.4. status defined.4.com 300 . to map a known MAC address to an IP address D. show frame-relay pvc B. show frame-relay lmi C. dynamic.Cisco 200-120 Exam QUESTION NO: 313 What command is used to verify the DLCI destination address in a Frame Relay static configuration? A. static. to map a known DLCI to a MAC address C. to map a known IP address to a SPID F. active QUESTION NO: 314 What is the purpose of Inverse ARP? A. dynamic. to map a known IP address to a MAC address B. to map a known DLCI to an IP address E.0x6410).0x6410). to map a known SPID to a MAC address Answer: D Explanation: Dynamic address mapping relies on the Frame Relay Inverse Address Resolution Protocol "Pass Any Exam. active Serial0/0 (up): ip 10.4dlci 401(0x191.4. status defined. Any Time.actualtests.4..0x6430). active Serial0/0 (up): ip 10." . broadcast.3dlci 403(0x193.4.1dlci 401(0x191.

17.22. You have been tasked to create and apply a numbered access list to a single outbound interface.The Core connection uses an IP address of 198.The computers in the Hosts LAN have been assigned addresses of 192.host B 192. . . defined by RFC 1293.18.168.www.2 . "Pass Any Exam." .168. Any Time. This access list can contain no more than three statements that meet these requirements. The responses to the Inverse ARP requests are used to populate an address-to-DLCI mapping table on the Frame Relay router or access server. . including both dynamic and static mapping entries.host C 192.201.com 301 .132.3 . QUESTION NO: 315 CORRECT TEXT A corporation wants to add security to its network.actualtests.The Finance Web Server has been assigned an address of 172.4 . The Frame Relay router sends out Inverse ARP requests on its Frame Relay PVC to discover the protocol address of the remote device connected to the Frame Relay network.168.201.The Public Web Server in the Server LAN has been assigned an addressof 172.host D 192.201. .168. Access to the router CLI can be gained by clicking on the appropriate host. to resolve a next hop network protocol (IP) address to a local DLCI value.201.254. All access from hosts in the Core or local LAN to the Finance Web Server should be blocked. The router builds and maintains this address-toDLCI mapping table.201.237.168.237. .18. All hosts in the Core and on local LAN should be able to access the Public Web Server.168. The requirements are: - Host B should be able to use a web browser (HTTP) to access the Finance Web Server.201. Other types of access from host B to theFinance Web Server should be blocked.22.1 .All passwords have been temporarily set to “cisco”. which contains all resolved Inverse ARP requests.65.Cisco 200-120 Exam (Inverse ARP).1 – 192.host A 192.

com 302 .www. Any Time.actualtests.Cisco 200-120 Exam "Pass Any Exam." .

" .www.Cisco 200-120 Exam "Pass Any Exam.com 303 . Any Time.actualtests.

Cisco 200-120 Exam Answer: Please check the below explanation for all details." . use the “show ip interface brief” command: From this. Explanation: We should create an access-list andapply it to the interface thatis connected to the Server LAN because it canfilter out traffic from both S2 and Core networks.actualtests.www. we know that the servers are located on the fa0/1 interface. so we will place our "Pass Any Exam. Any Time.To see which interface this is.com 304 .

just click on host Bto open its web browser. In the address box type http://172.22.actualtests.www. save the configuration Corp1(config-if)#end Corp1#copy running-config startup-config "Pass Any Exam.2 host 172.109. Any Time.22.109.2to theFinance Web Server 172.168.109. To verify. blocking all other access to the finance web server: Corp1(config)#access-list 100 deny ip any host 172. repeat to make sure they can reach the public server at 172.17 via HTTP(port 80).22. Corp1#configure terminal Our access-list needs to allow host B – 192.22.109. Finally.com 305 .17 to check if you are allowed to access Finance Web Server or not.22.109. Click on other hosts (A. Cand D) and check to make sure you can’t access Finance Web Server from these hosts.18) Corp1(config)#access-list 100 permit ip host 172. apply this access-list to Fa0/1 interface (outbound direction) Corp1(config)#interface fa0/1 Corp1(config-if)#ip access-group 100 out Notice: We have to apply the access-list to Fa0/1 interface (not Fa0/0 interface) so that the access-list can filter traffic coming from both theLAN and the Core networks.Cisco 200-120 Exam numbered access list here in the outbound direction. so our first line is this: Corp1(config)#access-list 100 permit tcp host 192. Then.17eq 80 Then. our next two instructions are these: This can be accomplished with one command (which we need to do as our ACL needs to be no more than 3 lines long).22.125.22.109." .18any Finally.109. If your configuration is correct then you can access it.17 Our last instruction is to allow allhosts in the Core and onthe local LANaccesstothe PublicWeb Server (172.18.168125.

4 D. how many broadcast domains are present on the router? A." .C182 B. switch 00E0.9A1A. switch-mdf-c1>hostname switch-mdf1 C. switch 0004. switch-mdf-c1(config)#hostname switch-mdf1 B. 2 C. switch 00E0. switch-mdf-c1#hostname switch-mdf1 D.F726.0BC0.3DC6 D. which switch takes over? A.com 306 . Any Time.Cisco 200-120 Exam Topic 9.90C5 Answer: A Explanation: "Pass Any Exam.www. Mixed Questions QUESTION NO: 316 If a router has four interfaces and each interface is connected to four switches. switch 0040. switch-mdf-c1(config-if)#hostname switch-mdf1 Answer: A Explanation: QUESTION NO: 318 If the primary root bridge experiences a power loss.F90B. 8 Answer: C Explanation: QUESTION NO: 317 Which command can you use to set the hostname on a switch? A.6BE3 C. 1 B.actualtests.

0/26 B.1. B.1.0/24 D.1. D.actualtests.Cisco 200-120 Exam QUESTION NO: 319 Which IPv6 header field is equivalent to the TTL? A. Answer: A. the default route Answer: A Explanation: "Pass Any Exam. It specifies IPv6 as the transport protocol. Any Time.1.16.16. It specifies IPv4 as the encapsulation protocol.5/32? A. 172. E. Scan Timer Answer: A Explanation: QUESTION NO: 320 Which two statements about the tunnel mode ipv6ip command are true? (Choose two. Hop Limit B.16. C. It enables the transmission of IPv6 packets within the configured tunnel. Hop Count E.B Explanation: QUESTION NO: 321 What is the correct routing match to reach 172. It specifies that the tunnel is a Teredo tunnel.0/25 C.16. TTD D. Flow Label C.com 307 . 172. 172.www.) A. It specifies IPv6 as the encapsulation protocol." .

NAT B.com 308 ." . RFC 1631 D.0 GigabitEthernet0/1 B.255.0. router(config)#ip route 0.0. router(config)#ip route 192.0.0.0.0 GigabitEthernet0/1 C.0.0. bootstrap B.0/20 to a specific interface? A.255.255.0 255.255. Any Time.actualtests. ROMMON mode Answer: A Explanation: QUESTION NO: 323 Which command can you enter to route all traffic that is destined for 192.0 GigabitEthernet0/1 Answer: A Explanation: QUESTION NO: 324 Which technology allows a large number of private IP addresses to be represented by a smaller number of public IP addresses? A. RFC 1918 Answer: A Explanation: "Pass Any Exam.0 GigabitEthernet0/1 D.0 0. mini-IOS D. router(config)#ip route 0.0.Cisco 200-120 Exam QUESTION NO: 322 Which step in the router boot process searches for an IOS image to load into the router? A. POST C.0.www.0 255. router(config)#ip route 192.240.0 255.168.255. NTP C.168.168.

com 309 .www.Cisco 200-120 Exam QUESTION NO: 325 What is the effect of the overload keyword in a static NAT translation configuration? A. It enables port address translation.B. FHRP B. site-to-site VPN E. satellite Internet C. It enables the use of a secondary pool of IP addresses when the first pool is depleted. Any Time.actualtests. municipal Wi-Fi D. DHCP C. ESRP Answer: A Explanation: QUESTION NO: 327 What are three broadband wireless technologies? (Choose three. It enables the outside interface to forward traffic.) A. WiMax B. Answer: A Explanation: QUESTION NO: 326 Which protocol advertises a virtual IP address to facilitate transparent failover of a Cisco routing device? A.C Explanation: "Pass Any Exam." . RSMLT D. It enables the inside interface to receive traffic. DSLAM F. B. C. D. CMTS Answer: A.

blocking B. learning D. The enable secret is in clear text in the configuration. Answer: A Explanation: QUESTION NO: 329 Which two spanning-tree port states does RSTP combine to allow faster convergence? (Choose two. The local username password is encrypted in the configuration. intra-VLAN routing using a Layer 3 switch Answer: A Explanation: "Pass Any Exam.B Explanation: QUESTION NO: 330 Which technology can enable multiple VLANs to communicate with one another? A. forwarding E. inter-VLAN routing using a Layer 3 switch B. listening C. C. Any Time. intra-VLAN routing using router on a stick D.actualtests. The enable secret is encrypted in the configuration. B. The local username password is in clear text in the configuration.Cisco 200-120 Exam QUESTION NO: 328 Which condition indicates that service password-encryption is enabled? A.) A. D.www." .com 310 . inter-VLAN routing using a Layer 2 switch C. discarding Answer: A.

C. Unlike IPv4 headers. locate an IOS image for booting C. fast switching D. cut-through Answer: A Explanation: QUESTION NO: 333 What is the purpose of the POST operation on a router? A. IPv6 uses an extension header instead of the IPv4 Fragmentation field.B. IPv6 headers have a fixed length. Answer: A.www." . IPv6 headers use a 4-bit TTL field. determine whether additional hardware has been added B. IPv6 headers eliminate the IPv4 Checksum field. Any Time.Cisco 200-120 Exam QUESTION NO: 331 In which three ways is an IPv6 header simpler than an IPv4 header? (Choose three.) A. set the configuration register Answer: A Explanation: "Pass Any Exam. B. and IPv4 headers use an 8-bit TTL field. Cisco Express Forwarding B. IPv6 headers use a smaller Option field size than IPv4 headers.actualtests. enable a TFTP server D. D.com 311 . F. E. IPv6 headers use the Fragment Offset field in place of the IPv4 Fragmentation field.C Explanation: QUESTION NO: 332 Which feature builds a FIB and an adjacency table to expedite packet forwarding? A. process switching C.

0 255. Answer: A Explanation: "Pass Any Exam. D. inside local B." . It can disable the overload command. router(config)#ip route 0.255.0 0.0.) A.Cisco 200-120 Exam QUESTION NO: 334 Which command can you enter to set the default route for all traffic to an interface? A. inside global C.0. router(config-router)#default-information originate always Answer: A Explanation: QUESTION NO: 335 Which two types of NAT addresses are used in a Cisco NAT device? (Choose two.com 312 . It can cause too many addresses to be assigned to the same interface. router(config)#ip route 0.0. outside private E.255 GigabitEthernet0/1 C. external local Answer: A. It can lead to overloaded resources on the router. external global F.www.255.0.0 GigabitEthernet0/1 B. It prevents the correct translation of IP addresses on the inside network. Any Time. router(config-router)#default-information originate D.0.actualtests. B. C. inside private D.0.B Explanation: QUESTION NO: 336 What is the danger of the permit any entry in a NAT access list? A.

C.D Explanation: "Pass Any Exam.C.www. They indicate received frames that did not pass the FCS match. E. exchanges routing tables with neighbors C.B Explanation: QUESTION NO: 339 Which three characteristics are representative of a link-state routing protocol? (Choose three. Any Time. calculates shortest path D. utilizes event-triggered updates E." . VRRP C. Answer: A. They may indicate a duplex mismatch.) A. CARP Answer: A Explanation: QUESTION NO: 338 Which two statements about late collisions are true? (Choose two. They are frames that exceed 1518 bytes. By definition. GLBP D. they occur after the 512th bit of the frame has been transmitted. provides common view of entire topology B.com 313 .actualtests. utilizes frequent periodic updates Answer: A.) A. HSRP B.Cisco 200-120 Exam QUESTION NO: 337 Which protocol is the Cisco proprietary implementation of FHRP? A. D. B. They occur when CRC errors and interference occur on the cable.

It configures an active management interface. a switch with priority 20480 B. B. which tertiary switch can take over? A. It configures an inactive switch virtual interface. a switch with priority 8192 "Pass Any Exam." . It configures the default VLAN. Switch#show interface vlan 20 D.Cisco 200-120 Exam QUESTION NO: 340 Refer to the exhibit. Switch#show ip interface brief C. D. Switch#show vlan id 20 B. Any Time. It configures the native VLAN.com 314 . Answer: A Explanation: QUESTION NO: 341 Which command can you enter to view the ports that are assigned to VLAN 20? A. Switch#show ip interface vlan 20 Answer: A Explanation: QUESTION NO: 342 If primary and secondary root switches with priority 16384 both experience catastrophic losses.actualtests.www. What is the effect of the given configuration? A. C.

actualtests.) A. D. ISATAP tunneling Answer: A. B.B Explanation: QUESTION NO: 344 Which two features can dynamically assign IPv6 addresses? (Choose two. Any Time. OSPFv3 was developed to support IPv6 routing. C. E. Router(config)#username jdone privilege 1 password 7 08314D5D1A48 "Pass Any Exam.com 315 .www. EIGRP. and BGP are the only routing protocols that support IPv6. NHRP D.B Explanation: QUESTION NO: 345 Which command can you enter to configure a local username with an encrypted password and EXEC mode user privileges? A. IPv6 stateless autoconfiguration B. Link-local addresses are used to form routing adjacencies." . Answer: A. DHCP C. a switch with priority 12288 Answer: A Explanation: QUESTION NO: 343 Which two statements about IPv6 and routing protocols are true? (Choose two. a switch with priority 4096 D. Loopback addresses are used to form routing adjacencies. IPv6 stateful autoconfiguration E.) A. EIGRPv3 was developed to support IPv6 routing. OSPF.Cisco 200-120 Exam C.

B.C Explanation: QUESTION NO: 347 Which three statements about static routing are true? (Choose three.124-24.) A.B. B.bin B.bin C. Routing is disrupted when links fail. It uses consistent route determination.actualtests. It requires more resources than other routing methods. C. Router(config)# boot system tftp c7300-js-mz.com 316 .) A. E. Router(config)#boot bootldr bootflash:c4500-jk9s-mz. Router(config)#username jdone privilege 15 password 0 08314D5D1A48 D. Any Time. Router(config)#username jdone privilege 1 password 7 PASSWORD1 C.C Explanation: QUESTION NO: 348 Which type of address is the public IP address of a NAT device? "Pass Any Exam.bin D. Router(config)# boot system flash c4500-p-mz. Routers can use update messages to reroute when links fail.bin F. Router(config)#boot flash:c180x-adventerprisek9-mz-124-6T. It is best used for large-scale deployments.122-33.SB8a.122-23f. D.www. Router(config)#username jdone privilege 15 password 0 PASSWORD1 Answer: A Explanation: QUESTION NO: 346 Which three commands can you use to set a router boot image? (Choose three. It is best used for small-scale deployments.T4.bin E. Router> boot flash:c180x-adventerprisek9-mz-124-6T. F.bin Answer: A. Answer: A. Router(config)#boot system rom c7301-advipservicesk9-mz.121-20." .Cisco 200-120 Exam B.

outside local C. Any Time. VRRP B.www. inside global D. inside public Answer: C Explanation: QUESTION NO: 349 Which command can you enter to display the hits counter for NAT traffic? A. outside public F. DHCP Answer: A Explanation: QUESTION NO: 351 What are two reasons that duplex mismatches can be difficult to diagnose? (Choose two. debug ip nat C. GLBP C. show ip nat statistics B.com 317 .Cisco 200-120 Exam A. show ip debug nat D. clear ip nat statistics Answer: A Explanation: QUESTION NO: 350 Which standards-based First Hop Redundancy Protocol is a Cisco supported alternative to Hot Standby Router Protocol? A. outside global B.actualtests.) "Pass Any Exam. TFTP D." . inside local E.

The symptoms of a duplex mismatch may be intermittent. Switch(config)#vlan 20 Switch(config)#Interface vlan 20 Switch(config-if)#switchport trunk native vlan 20 D. SW1(config-line)#absolute-timeout 0 10 D. The interface displays a connected (up/up) state even when the duplex settings are mismatched. Switch(config)#Interface gig x/y Switch(config-if)#vlan 20 Switch(config-vlan)#switchport access vlan 20 C.actualtests. 1-Gbps interfaces are full-duplex by default.com 318 . Answer: A. Switch(config)#vlan 20 Switch(config)#Interface vlan 20 "Pass Any Exam.Cisco 200-120 Exam A. C." . SW1(config-line)#absolute-timeout 10 Answer: A Explanation: QUESTION NO: 353 Which command sequence can you enter to create VLAN 20 and assign it to an interface on a switch? A. B. Full-duplex interfaces use CSMA/CD logic. SW1(config-line)#exec-timeout 0 10 B. Any Time. Switch(config)#vlan 20 Switch(config)#Interface vlan 20 Switch(config-if)#switchport access vlan 20 E.www. D.B Explanation: QUESTION NO: 352 Which command can you execute to set the user inactivity timer to 10 seconds? A. E. SW1(config-line)#exec-timeout 10 C. Autonegotiation is disabled. so mismatches may be disguised by collisions. Switch(config)#vlan 20 Switch(config)#Interface gig x/y Switch(config-if)#switchport access vlan 20 B.

Answer: A. B.www.) A. They use ICMPv6 type 134. They are sourced from the configured IPv6 interface address. Mono Spanning Tree Answer: A Explanation: QUESTION NO: 355 Which two statements about IPv6 router advertisement messages are true? (Choose two. E. MSTP B.B Explanation: QUESTION NO: 356 Which three statements about IPv6 prefixes are true? (Choose three. The advertised prefix length must be 48 bits. Their destination is always the link-local address of the neighboring node. FF00:/8 is used for IPv6 multicast. B. FE80::/10 is used for link-local unicast. RSTP C. 2001::1/127 is used for loopback addresses. PVST+ D. D.) A.Cisco 200-120 Exam Switch(config-if)#switchport trunk allowed vlan 20 Answer: A Explanation: QUESTION NO: 354 Which spanning-tree protocol rides on top of another spanning-tree protocol? A. The advertised prefix length must be 64 bits. C. D. "Pass Any Exam. FC00::/7 is used in private networks.com 319 .actualtests." . C. Any Time.

E.B.actualtests.com 320 . Answer: A. FE80::/8 is used for link-local unicast. Updates are sent to a multicast address by default. Router#show ip interface loopback 0 B.) A.Cisco 200-120 Exam E. Routes are updated when a change in topology occurs. It uses split horizon. B. F." .C Explanation: QUESTION NO: 357 After you configure the Loopback0 interface. Any Time. C. Updates are sent to a broadcast address.B. which command can you enter to verify the status of the interface and determine whether fast switching is enabled? A. Router#show ip interface brief Answer: A Explanation: QUESTION NO: 358 Which three statements about link-state routing are true? (Choose three. OSPF is a link-state protocol. Answer: A. Router#show run C. RIP is a link-state protocol. FEC0::/10 is used for IPv6 broadcast. F.www. Router#show interface loopback 0 D. PAT "Pass Any Exam. D.C Explanation: QUESTION NO: 359 Which NAT function can map multiple inside addresses to a single outside address? A.

Define global and local interfaces. exactly one standby active router E. Define IP address pools. Any Time.) A.com 321 . exactly one backup virtual router Answer: A. B.Cisco 200-120 Exam B. C. Answer: A Explanation: QUESTION NO: 361 What are two requirements for an HSRP group? (Choose two. one or more standby routers C.www.actualtests.B Explanation: QUESTION NO: 362 Which two commands can you enter to verify that a configured NetFlow data export is operational? (Choose two. Define inside and outside interfaces. one or more backup virtual routers D.) "Pass Any Exam. Define public and private IP addresses. SFTP C. TFTP Answer: A Explanation: QUESTION NO: 360 What is the first step in the NAT configuration process? A. D. RARP D." . exactly one active router B. ARP E.

They require a WiMax tower within 30 miles of the user location.) A. D. interface ethernet 0/0 F. E. show ip cache flow C. Access to the router CLI can be gained by clicking on the appropriate host.209. They are frequently used by rural users without access to other high-speed connections. show ip flow export B. ip flow-export destination Answer: A. ip flow ingress D. Answer: A. . This access list can contain no more than three statements that meet these requirements.The Core connection uses an IP address of 198.18. All hosts in the Core and on local LAN should be able to access the Public Web Server. The requirements are: - Host C should be able to use a web browser (HTTP) to access the Finance Web Server. Other types of access from host C to the Finance Web Server should be blocked.All passwords have been temporarily set to “cisco”. "Pass Any Exam. Any Time.B Explanation: QUESTION NO: 363 What are three characteristics of satellite Internet connections? (Choose three.Cisco 200-120 Exam A. They are usually at least 10 times faster than analog modem connections. They use radio waves to communicate with cellular phone towers. All access from hosts in the Core or local LAN to the Finance Web Server should be blocked. F.65. They are usually faster than cable and DSL connections. .www. C. ip flow egress E.B. Their upload speed is about 10 percent of their download speed.C Explanation: QUESTION NO: 364 CORRECT TEXT A corporation wants to add security to its network.com 322 . B. You have been tasked to create and apply a numbered access list to a single outbound interface.actualtests." .

1 – 192.actualtests.3 host D 192.254.17. Any Time.78.22.78.168.146. "Pass Any Exam.78.78.22.78.168.146.www.168.168.4 The Finance Web Server has been assigned an address of 172. The Public Web Server in the Server LAN has been assigned an address of 172.1 host B 192.168. host A 192." .- Cisco 200-120 Exam The computers in the Hosts LAN have been assigned addresses of 192.168.78.18.2 host C 192.com 323 .

Any Time.Cisco 200-120 Exam "Pass Any Exam." .www.com 324 .actualtests.

Cisco 200-120 Exam Answer: Please see below explanation part for details answer steps: "Pass Any Exam." .com 325 . Any Time.www.actualtests.

109.17 Our last instruction is to allow allhosts in the Core and onthe local LANaccesstothe PublicWeb Server (172.22.17 via HTTP(port 80). To verify. use the “show ip int brief” command: From this. just click on host Cto open its web browser.18) Corp1(config)#access-list 100 permit ip host 172.com 326 .22.Cisco 200-120 Exam Explanation: We should create an access-list andapply it to the interface thatis connected to the Server LAN because it canfilter out traffic from both S2 and Core networks.3 host 172.109.168. "Pass Any Exam. apply this access-list to Fa0/1 interface (outbound direction) Corp1(config)#interface fa0/1 Corp1(config-if)#ip access-group 100 out Notice: We have to apply the access-list to Fa0/1 interface (not Fa0/0 interface) so that the access-list can filter traffic coming from both theLAN and the Core networks.125. In the address box type http://172. our next two instructions are these: This can be accomplished with one command (which we need to do as our ACL needs to be no more than 3 lines long). Corp1#configure terminal Our access-list needs to allow host C – 192.109.3to theFinance Web Server 172.22. Any Time. If your configuration is correct then you can access it.109.109. we know that the servers are located on the fa0/1 interface.22.actualtests.22.To see which interface this is.168125.22.109.18any Finally.17 to check if you are allowed to access Finance Web Server or not. blocking all other access to the finance web server: Corp1(config)#access-list 100 deny ip any host 172.www. so we will place our numbered access list here in the outbound direction.17eq 80 Then. so our first line is this: Corp1(config)#access-list 100 permit tcp host 192." .

109. repeat to make sure they can reach the public server at 172.22. Finally. Then.18." . save the configuration Corp1(config-if)#end Corp1#copy running-config startup-config "Pass Any Exam. B and D) and check to make sure you can’t access Finance Web Server from these hosts.www. Any Time.actualtests.Cisco 200-120 Exam Click on other hosts (A.com 327 .

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