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

www. "Pass Any Exam. transport E. session D.com 7 .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. Any Time. presentation C. data link Answer: A Explanation: FTP belongs to Application layer and it is also the highest layer of the OSI model." . application B. internet F. What is the highest layer of the protocol stack that the network administrator is using for this operation? A.actualtests.

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

www. Exhibit C D.Cisco 200-120 Exam A.6.1. Any Time." . Exhibit F Answer: A Explanation: Host A knows host B is in another network so it will send the pings to its default gateway 192.6. Exhibit D E.actualtests. QUESTION NO: 8 A network interface port has collision detection and carrier sensing enabled on a shared twisted "Pass Any Exam. Exhibit B C.168.com 9 . Exhibit E F.1. Host A sends a broadcast frame asking the MAC address of 192.168. Exhibit A B.Thisinformation (IP and MAC address of the default gateway) is saved in its ARP cache for later use.

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

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

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

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

if they are connected with a repeater. we have TWO broadcast domains. These days. An example for Broadcasting would be DHCP Request from a Client PC. but the client does not know how to reach the DHCP Server. 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. don't allow broadcasts through by default. it doesn't get forwarded. Only one device in the collision domain may transmit at any one time. this meant you had a lot of collisions. How to count them? Broadcast Domain: No matter how many hosts or devices are connected together. hub. you break up collision domains by switching packets bound for other collision domains. all these devices are in ONE Broadcast domain (assuming a single VLAN). Since switches and bridges allow for broadcast traffic to go unswitched. The Client is asking for a IP Address. Also. however. Broadcast domains are exactly what they imply: they are network segments that allow broadcasts to be sent across them. but a collision domain can never have more than one broadcast domain associated with it.Cisco 200-120 Exam Answer: C. The simple way to look at it is this way: switches break up collision domains. A Router is used to separate Broadcast-Domains (we could also call them Subnets . so when a broadcast hits a router (or the perimeter of a VLAN). a collision domain is a network segment that allows normal network traffic to flow back and forth. In the old days of hubs.or call them VLANs). With switches. So.actualtests. A collision domain is sometimes referred to as an Ethernet segment. you generally have one collision domain to a PC.www. But only the DHCP Server will answer to the Request. broadcasts can traverse collision domains freely. Any Time. and the other devices in the domain listen to the network in order to avoid data collisions. if a router stands between all these devices. 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). since we mostly use switches to connect computers to the network. Broadcast Domain: Broadcasting sends a message to everyone on the local network (subnet). while routers (and VLANs) break up collision domains and broadcast domains.D Explanation: Basically. Collision Domain: "Pass Any Exam. a broadcast domain can contain multiple collision domains." . switch or bridge. So the client sends a DHCP Discover packet to EVERY PC in the local subnet (Broadcast). Routers.com 14 .

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

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

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

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

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

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

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

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

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

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

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

Drag the correct frame and packet address to their place in the table.0c89.www.9999IP 172. PC_1 is sending packets to the FTP server. Any Time.21.7 QUESTION NO: 26 DRAG DROP Refer to the exhibit." .250IP 172.actualtests.0c89.16.Cisco 200-120 Exam Source Mac AddressDestination Mac AddressSource IP addressDestination MAC address MAC 0000. Consider the packets as they leave RouterA interface Fa0/0 towards RouterB.com 26 .16.3333MAC 0000. Answer: "Pass Any Exam.34.

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

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

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

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

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

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

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

" .1111). 32768: 11-22-33-44-55-66 would be the bridge because it has a lower priority and MAC address. An additional broadcast domain will be created. 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..Bridge priority + MAC (32768. B. QUESTION NO: 37 A switch is configured with all ports assigned to VLAN 2 with full duplex FastEthernet to segment existing departmental traffic. QUESTION NO: 36 Which switch would STP choose to become the root bridge in the selection process? A.0200. C.2222) both have a priority of 32768 then switch A will be selected as the root bridge. for example. "Pass Any Exam.Cisco 200-120 Exam SAP is a concept of the OSI model. the priority is compared first. the bridge ID contains both numbers combined together .0000. D. In this case. IP address utilization will be more efficient. 32769: 11-22-33-44-55-65 D. More bandwidth will be required than was needed previously.actualtests.. as if looking at a real number anything less than 32768.will become the target of being the root. Each bridge has a configurable priority number and a MAC Address.0000. What is the effect of adding switch ports to a new VLAN on the switch? A.com 34 .www. 32768: 22-33-44-55-66-77 C. 32768: 11-22-33-44-55-66 B. To compare two bridge IDs.1111) and B (MAC=0200. More collision domains will be created. Any Time. The Bridge priority default is 32768 and can only be configured in multiples of 4096(Spanning tree uses the 12 bits extended system ID).0000. if switches A (MAC=0200. If two bridges have equal priority then the MAC addresses are compared.

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

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

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

168. learning D.254 SwitchB(config)# interface vlan 1 SwitchB(config-if)# ip address 192. For intersubnetwork communication to occur.8. In the exhibit.255.252 255. QUESTION NO: 42 Which two states are the port states when RSTP has converged? (Choose two.168.255. Any Time.255.168.8. we often use VLAN 1 as the management VLAN (but in fact it is not secure).254 255.) A.255.8.168. you must configure at least one default gateway.255.254 255. listening C.0 SwitchB(config-if)# no shutdown C.252 255. SwitchB(config)# ip default-gateway 192.0 SwitchB(config)# interface FastEthernet 0/1 SwitchB(config-if)# ip address 192. SwitchB(config)# interface vlan 1 SwitchB(config-if)# ip address 192.255.168.www.168.255.8.0 SwitchB(config-if)# no shutdown B. forwarding E. we can recognize that the Management Workstation is in a different subnet from the SwitchB.255.0 SwitchB(config-if)# no shutdown E.252 255. discarding B.255. it must have a management IP address on a VLAN on that switch.0 SwitchB(config-if)# no shutdown Answer: C Explanation: To remote access to SwitchB. not to forward traffic sent by devices connected to the switch. SwitchB(config)# interface FastEthernet 0/1 SwitchB(config-if)# ip address 192.252 255.168.168.255.255." .0 SwitchB(config-if)# no shutdown D.8.Cisco 200-120 Exam accomplish this task? A.com 38 .0 SwitchB(config-if)# ip default-gateway 192. disabled "Pass Any Exam.8.8. Traditionally. SwitchB(config)# ip default-network 192.255.255.8.168.252 255. This default gateway is used to forward traffic originating from the switch only.8.actualtests.254 SwitchB(config)# interface vlan 1 SwitchB(config-if)# ip address 192.255. SwitchB(config)# ip route 192.

actualtests. blocking. STP (802.1D) Port State RSTP (802." . The 802.www.com/en/US/tech/tk389/tk621/technologies_white_paper09186a0080094cfa.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.cisco.com 39 . Any Time. and listening states are merged into a unique 802.1w discarding state.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.1D disabled.shtml #states QUESTION NO: 43 "Pass Any Exam.

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. show interface interface C. Any Time. show interface vlan E.E Explanation: Example output from these two commands: SW3#show interface trunk Port Mode Encapsulation Status Native vlan Fa0/19 auto n-802.com 40 .1q trunking 1 Fa0/22 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.1q trunking 1 Fa0/20 auto n-802." .www.1q trunking 1 Fa0/21 auto n-802. show interface trunk B. show interface switchport Answer: A. show ip interface brief D.actualtests.) A. 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 41 . spanning-tree mode rapid-pvst C. spanning-tree uplinkfast B.www." . spanning-tree backbonefast D.actualtests. The RSTP 802.1D protocol.1w protocol is an IEEE open implementation. that includes the benefits of its Per-VLAN spanning tree protocols. "Pass Any Exam. called Rapid-PVST+.Cisco 200-120 Exam A. spanning-tree mode mst Answer: B Explanation: Rapid Spanning Tree Protocol (RSTP) is an enhancement of the original STP 802. Any Time. Cisco has its own proprietary implementation of RSTP. To activate the Rapid-PVST+ protocol: switch(config)#spanning-tree mode rapid-pvst QUESTION NO: 45 Refer to the exhibit.

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

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

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

Any Time. QUESTION NO: 50 Which two link protocols are used to carry multiple VLANs over a single link? (Choose two.Cisco 200-120 Exam The root bridge is determined by the lowest bridge ID.Generally.) A. which is higher than the roots priority of 20481.www. 802. and this switch has a bridge ID priority of 32768. the industry standard 802.3u Answer: B. 1 through 1002 D. and removed on a Cisco switch? A. VLANs 1002-1005 are default VLANs for FDDI & Token Ring and they can’t be deleted or used for "Pass Any Exam. most network engineers prefer to use 802. which VLAN range can be added. ISL E. 802. IGP D.actualtests.1q since it is standards based and will interoperate with other vendors.com 45 .D Explanation: Cisco switches can use two different encapsulation types for trunks. 1 through 1001 B. VTP B. QUESTION NO: 51 Assuming the default switch configuration. It always exists and cannot be added. modified or removed.1q C." .1qor the Cisco proprietary ISL. modified. 2 through 1001 C. 2 through 1005 Answer: B Explanation: Explanation VLAN 1 is the default VLAN on Cisco switch.

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

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

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

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

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

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

QUESTION NO: 59 Refer to the exhibit. Any Time. not PVST ->.596d.596d. All of the interface roles of the root bridge are designated. Fa0/11 is the root port so we can confirm this switch is not the root bridge ->. Answer: D Explanation: Only non-root bridge can have root port.com 52 . The MAC address of the root bridge is 0017. not of the root bridge.596d.2a00 ->.Cisco 200-120 Exam interfaces except the one it was received on.www." .1580. B. D.actualtests. Which statement is true? A. C. 0017. The Fa0/11 role confirms that SwitchA is the root bridge for VLAN 20. "Pass Any Exam. The MAC address of the root bridge is 0017. SwitchA has one Root port and 1 Alternative port so it is not the root bridge. VLAN 20 is running the Per VLAN Spanning Tree Protocol. From the output we learn this switch is running Rapid STP. SwitchA is not the root bridge.1580 is the MAC address of this switch. because not all of the interface roles are designated.

High-security users can be grouped into a VLAN. arp address "Pass Any Exam. by functions. possible on the same physical segment.com 53 . 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. dedicated bandwidth C. provides segmentation D.actualtests. or applications rather than on a physical or geographical basis. Security: VLANs also improve security by isolating groups.Cisco 200-120 Exam QUESTION NO: 60 Which two benefits are provided by creating VLANs? (Choose two. contains collisions Answer: A. Any Time. tracert address C. 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." . ping address B. By containing traffic originating on a particular LAN only to other LANs in the same VLAN. allows switches to route traffic between subinterfaces E. 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. and no users outside that VLAN can communicate with them.www.C Explanation: AVLAN is a switched network that is logically segmented on an organizational basis. switched virtual networks avoid wasting bandwidth.) A. added security B. project teams. traceroute address D.

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. switching loops. routing loops. and then removes "Pass Any Exam. STP F.Cisco 200-120 Exam Answer: A Explanation: ICMP pings are used to verify connectivity between two IP hosts.com 54 . switching loops.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. hold down timers B. routing loops.1D IEEE algorithm by exchanging BPDU messages with other switches to detect loops. Spanning-Tree Protocol implements the 802. Any Time. split horizon C.www.actualtests. STP Answer: F Explanation: The Spanning-Tree Protocol (STP) prevents loops from being formed when switches or bridges are interconnected via multiple paths. switching loops." . VTP E. split horizon D. routing loops.

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

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

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

The receiving switch willadd its local port cost value to the costin the BPDU. 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.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.com 58 .www. 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.actualtests. Switch D adds 4 (the cost value of "Pass Any Exam." . 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.

actualtests. Any Time. 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. SwitchB adds another 4 and learns that it can reach SwitchC via Gi0/1 port with a total cost of 8.www. "Pass Any Exam.com 59 ." .Cisco 200-120 Exam 1Gbps link) and advertises this value (4) to SwitchB. Now our last task is to identify the port roles of the ports between SwitchA & 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 ->. 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.

Host B and the switch need to be in the same subnet. However. but pings to the other two hosts are successful. Answer: D Explanation: Ping was successful form host B to other hosts because of intervlan routing configured on router. What is the issue? A. E. 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 administrator's attempt to telnet to the switch from host B fails.Cisco 200-120 Exam The network administrator normally establishes a Telnet session with the switch from host A.actualtests. Any Time." . The switch needs an appropriate default gateway assigned. Host B needs to be assigned an IP address in VLAN 1. "Pass Any Exam.www. D. C. host A is unavailable. B. The switch interface connected to the router is down. Since VLAN1 interface is already configure on switch Host A was able to telnet switch. The switch interfaces need the appropriate IP addresses assigned.com 60 . 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

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

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

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

Cisco 200-120 Exam E. What will happen in this scenario? A. VLAN 10 on CAT1 and VLAN 1 on CAT2 will send untagged frames. “VLAN mismatch” can cause traffic from one vlan to leak into another vlan. An 802.www. B. C. VLAN 10 is chosen as native.com 70 . 802.1Q giants frames could saturate the link. On CAT1. because it can better control layer2 broadcast to improve network security. but on CAT2 the native VLAN is not specified. F. moving. VLANs can greatly simplify adding. not physical location. VLAN 10 on CAT1 and VLAN 1 on CAT2 will send tagged frames.actualtests. This makes network more flexible and scalable. Answer: A.F Explanation: VLAN technology is often used in practice. QUESTION NO: 81 Refer to the exhibit. Any Time. VLANs allow access to network services based on department. "Pass Any Exam. or changing hosts on the network. D.1Q trunk is configured between the two switches. QUESTION NO: 80 Cisco Catalyst switches CAT1 and CAT2 have a connection between them using ports FA0/13. A native VLAN mismatch error message will appear.1Q link.E. Packet filtering is a function of firewall instead of VLAN. Answer: C Explanation: A “native VLAN mismatch” error will appear by CDP if there is a native VLAN mismatch on an 802." .

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

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

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

actualtests.Cisco 200-120 Exam A network administrator is configuring an EtherChannel between SW1 and SW2.www.com 74 . 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. The SW1 configuration is shown. Any Time. What is the correct configuration for SW2? A. 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." . 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.

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

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

not the underlying physical member interfaces.0 255.com 77 .Cisco 200-120 Exam Answer: A Explanation: To create an EtherChannel interface and assign its IP address and subnet mask. 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.168. Step 3 Router(config-if)#exit Router(config)# Exits this mode. Any Time.255.cisco. Step 2 Router(config-if)#ip addressip-address subnet-mask Assigns an IP address and subnet maskto the EtherChannel interface.www.252 "Pass Any Exam. Reference: http://www. 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.actualtests. 192. Which network address and subnet mask meet this requirement? A. 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. Optionally.com/c/en/us/td/docs/switches/lan/catalyst2948gand4908g/120_7_w5_15d/configuration/guide/config/ether_ch.252.255." .html Topic 3. 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.

255.255.255.16.16. 172.0. 192." .16.com 78 .252. the network address is 172.168.28.24.0. 192.255. what is the correct network address? A.240.255.252 will allow for only 2 usable IP addresses.16 255.16.255.16.252 with a subnet mask of 255. ::1 B.255.8 255.0 B.16. 192. 0::/10 Answer: A "Pass Any Exam.actualtests.255. 172.255.168. Any Time. :: C.255. A subnet mask of 255.1? A.172.16 255.254.31.0 C.252.0 Answer: A Explanation: For this example. QUESTION NO: 89 Given an IP address 172.252 D. 172.252. 2000::/3 D. QUESTION NO: 90 Which IPv6 address is the equivalent of the IPv4 interface loopback address 127. the network range is 172.255.0.8 255. 172.28.0.16.168.252 Answer: B Explanation: A subnet mask of 255.0 and the broadcast IP address is 172. 192. since we cannot use the network or broadcast address.16.255.252.168.31.0 D.16.255.248 will allow for up to 6 hosts to reside in this network.240 E.255.16.Cisco 200-120 Exam B.www.16.1 .248 C.16.

0/25 C. Any Time. 10.31.188.188. so could also be written as ::1/128. 10.0/27 E.::1 This is a 128bit number. 10. with the first 127 bits being '0' and the 128th bit being '1'. complicated header E.188. no broadcasts D. QUESTION NO: 91 You are working in a data center environment and are assigned the address range 10.) A." . autoconfiguration C. You are asked to develop an IP addressing plan to allow the maximum number of subnets with as many as 30 hosts each.31.0/28 D.actualtests. QUESTION NO: 92 What are three features of the IPv6 protocol? (Choose three.0/26 B. Which IP address range meets these requirements? A. Also the question requires the maximum number of subnets (which minimum the number of hostsper-subnet) so /27 is the best choice.188. 10. optional IPsec B.0/23. checksums "Pass Any Exam.31. 10. plug-and-play F.Cisco 200-120 Exam Explanation: In IPv6 the loopback address is written as. It's just a single address.31.31.www.31.com 79 .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 -> /27.188.188.

and therefore does not define broadcast addresses. unspecified address "Pass Any Exam. In IPv6. 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.0. multicast D. This feature was critical to allow network connectivity to an increasing number of mobile devices.Cisco 200-120 Exam Answer: B. your version of IOS does not support IPv6. anycast C.com 80 .e.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.www. the transmission of a packet to all hosts on the attached link using a special broadcast address.actualtests. global unicast B. 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. ipv6 host C. ipv6 local B. which is analogous to IPv4 multicast to address 224.This is accomplished by autoconfiguration. Any Time." . the same result can be achieved by sending a packet to the link-local all nodes multicast group at address ff02::1. IPv6 does not implement traditional IP broadcast.C. QUESTION NO: 93 Which command enables IPv6 forwarding on a Cisco router? A. i. ipv6 unicast-routing D.1.

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

255.3.0 B.0.www.1.255.0. 10.0 QUESTION NO: 97 Refer to the exhibit. and only those four networks.0.0 /23 D.255.com 82 .254.0.248.0000 0000 -> 255.0.0 /22 C.0. 10.0.1111 1110. What is the most appropriate summarization for these routes? A. "Pass Any Exam.0." .255.0. 255.1111 1111.255.254. and 10.0.0. 10.0 C. 10. 255. 10.actualtests.2.0 Answer: B Explanation: Explanation: 310 hosts < 512 = 29-> We need a subnet mask of 9 bits 0 -> 1111 1111. 255.0.252.255.0.0.0 /21 B.0.0.0 D.0/22 subnet mask will include the 10. Any Time.0 networks.0 /24 Answer: B Explanation: The 10.0.Cisco 200-120 Exam wasted addresses? A.255. 10.0.

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

1.Cisco 200-120 Exam A new subnet with 60 hosts has been added to the network.168.168.56/27 C.1.1.64/26 D." .com 84 . 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. 192.56/26 B.168. Therefore subnet bits are 2 bits (8-6) in fourth octet.actualtests. Any Time. 192. "Pass Any Exam. 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.168.www. 192. Which subnet address should this network use to provide enough usable addresses while wasting the fewest addresses? A.

a /25 is required for 120 hosts and again 172.172.172.40/30 F. Link A . 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.0/30 is valid. Link A .3.16. Link A . QUESTION NO: 102 The network administrator needs to address seven LANs. 6 C.172.3.16.172. Network A .3.48/26 B.16.3.16. RIP version 1 is the only routing protocol in use on the network and subnet 0 is not being used.www.3.) A. valid option.172.D Explanation: Only a /30 is needed for the point to point link and sine the use of the ip subnet-zero was used. Which network addresses should be used for Link A and Network A? (Choose two.112/30 Answer: B.192/26 D. 8 B.128/25 C.16.16.actualtests.0/30 E. 30 "Pass Any Exam.3. 172.128/25 is the best. Any Time. Network A .Cisco 200-120 Exam All of the routers in the network are configured with the ip subnet-zero command.16.3.com 85 ." .Also. Network A .172.16.3.

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

It is important to note that the double colon (::) can only be used once within asingle IPv6 address notation. B514 : 82C3 : 0029 :: EC7A : 0000 : EC72 D. Both of these can be used in any number of combinations to notate the same address.ciscopress.So.Cisco 200-120 Exam Answer: A. "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.com/articles/article.com 87 .www. B514 : 82C3 :: 0029 : EC7A : EC72 C. Any Time. the extra 0’s can only be compressed once. 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 (::).E Explanation: Here are some of the benefits of hierarchical addressing: Reference: http://www." . B514 : 82C3 : 0029 : EC7A : EC72 B. QUESTION NO: 106 Refer to the diagram.actualtests.

The LAN interface of the router is configured with one IP address. F. Answer: B.1-172.192.1.16.1." .1.16.16.Cisco 200-120 Exam All hosts have connectivity with one another.com 88 . Any Time. "Pass Any Exam.) A. The IP address 172.16.255.C.255. The IP address 172. C. one with an IP address that belongs in each VLAN.1.25 can be assigned to hosts in VLAN1 D. The LAN interface of the router is configured with multiple IP addresses.255. QUESTION NO: 107 Which two statements describe characteristics of IPv6 unicast addressing? (Choose two.16.255.205 can be assigned to hosts in VLAN1 E.25 canbe assigned to hosts in VLAN1:The usable host range in this subnet is 172.255. Global addresses start with 2000::/3.www.126 The LAN interface of the router is configured with multiple IP addresses:The router will need 2 subinterfaces for the single physical interface. which is needed.255. The IP address 172. The subnet mask in use is 255.128.F Explanation: The subnet mask in use is 255. B.) A.actualtests. The subnet mask in use is 255.1. Which statements describe the addressing scheme that is in use in the network? (Choose three.128:This is subnet mask will support up to 126 hosts.

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

17 E.168.14 Subnet Mask: 255.com 90 . QUESTION NO: 110 Which subnet mask would be appropriate for a network address range to be subnetted for up to eight LANs. IP address: 192.0.240 B. Which of the following should be entered into the IP properties box for the sales server? A.255.255. 255.168.24/29.20.255.25 D.24.255. IP address: 192. 255.248 Default Gateway: 192. For network 192.actualtests.24.255. IP address: 192.168.255.168.240 Default Gateway: 192. IP address: 192.0 D.168.168.Cisco 200-120 Exam QUESTION NO: 109 An administrator must assign static IP addresses to the servers in a network. 255.254 Subnet Mask: 255.240 "Pass Any Exam.20.168.240 Default Gateway: 192. 255.168.0.20.30 Subnet Mask: 255.255.248 Default Gateway: 192.20.255. Any Time.168.168.20. with each LAN containing 5 to 26 hosts? A.20.168.1 C.0 Default Gateway: 192.20.24/29 network.252 C.25 (router) – 192.20.www.255.255. the router is assigned the first usable host address while the sales server is given the last usable host address.255.255.9 B.30 Subnet Mask: 255.255. the usable hosts are 192.255.224 E. IP address: 192.25 Answer: C Explanation: For the 192.168.20.30 Subnet Mask: 255.30 (used for the sales server).168.20.20.20.255.255.168. 0.255.255." .

" . statically map IPv4 addresses to IPv6 addresses F. QUESTION NO: 112 What are three approaches that are used when migrating from an IPv4 addressing scheme to an IPv6 scheme.255. 16 Answer: D Explanation: An IPv6 address is represented as eight groups of four hexadecimal digits.actualtests. Any Time. configure IPv4 tunnels between IPv6 islands D. 8 D. (Choose three. 4 C. enable dual-stack routing B. configure IPv6 directly C. QUESTION NO: 111 How many bits are contained in each field of an IPv6 address? A. each group representing 16 bits (two octets).www. a mask of 255.Cisco 200-120 Exam Answer: D Explanation: For a class C network. 24 B.com 91 . The groups are separated by colons (:).D Explanation: "Pass Any Exam. An example of an IPv6 address is 2001:0db8:85a3:0000:0000:8a2e:0370:7334.224 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.C.) A.255. use proxying and translation to translate IPv6 packets into IPv4 packets E.

0.16. and dual stack.0. QUESTION NO: 113 Refer to the exhibit.32.Cisco 200-120 Exam Several methods are used terms of migration including tunneling. while translators simply translate IPv6 packets into IPv4 packets.16.32. All these 3 subnets have the same form of 172.0.x so our summarized subnet must be also in "Pass Any Exam.0/18.com 92 .32. Any Time. Tunnels are used to carry one protocol inside another.0 /16 E.16. translators. Hosts can simultaneously reach IPv4 and IPv6 content. 172.0 /16 B.0/24 and 172.16.0 /16 Answer: A Explanation: Router A receives 3 subnets: 172.0/18.0. With dual stack. 172.64.0.www. In this VLSM addressing scheme. 172. 172.actualtests. what summary address would be sent from router A? A. 172. 172. devices are able to run IPv4 and IPv6 together and if IPv6 communication is possible that is the preferred protocol.Dual stack uses a combination of both native IPv4 and IPv6.0.16.16.16.64.0 /24 D." . 172.x.0 /17 F.0 /20 C.128.

by prefixing the MAC address with 0xFFEE C. by appending 0xFF to the MAC address B. QUESTION NO: 115 Refer to the exhibit.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. -> Only answer A has these 2 conditions ->. QUESTION NO: 114 How is an EUI-64 format interface ID created from a 48-bit MAC address? A." . by prefixing the MAC address with 0xFF and appending 0xFF to it D. "Pass Any Exam. 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 inserting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address E.Cisco 200-120 Exam that form -> Only A.com 93 . B or .actualtests. Any Time.

0/24 172.1.1. 2002:7654:A1AD:61:81AF:CCC1 C.0/21 C. 172. FEC0:ABCD:WXYZ:0067::2A4 D.0/24 172.com 94 . 172.1.0/24 Answer: C Explanation: The 172. Any Time.4. 2004:1:25A4:886F::1 Answer: D Explanation: An IPv6 address is represented as eight groups of four hexadecimal digits." .5.1.1.1.4.www.0/24 172. The groups are separated by colons (:).0 – 172.0/22 B.1.1.7.7.4.128/25 172.1.1.4.6. 172.1.actualtests.Cisco 200-120 Exam What is the most efficient summarization that R1 can use to advertise its networks to R2? A. "Pass Any Exam.1.1.5.0/22 subnet encompasses all routes from the IP range 172.0/22 D.7. but this can only be done once in an IP address. An example of an IPv6 address is 2001:0db8:85a3:0000:0000:8a2e:0370:7334.6. 172.1.255. 172. each group representing 16 bits (two octets).4.0.0/24 E.0/25 172. 2001:0000:130F::099a::12a B. QUESTION NO: 116 Which option is a valid IPv6 address? A.The leading 0’s in a group can be collapsed using ::.4.0/24 172.1.0/24 172.0.

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.

"Pass Any Exam. Any Time." - www.actualtests.com

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

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

Any Time.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." .www.actualtests.com 102 .

168.0.2 Local(config)# ip route 10.0 255.0 0.255.0.3 Drag each destination IP address on the left to its correct next hop address on the right. Answer: Explanation: "Pass Any Exam.0.168.0.255." .1.Cisco 200-120 Exam Local(config)# ip route 0. Any Time.com 103 .www.3.0 192.0.0 192.0.1.actualtests.0.0 192.0 255.1 Local(config)# ip route 10.1.168.255.2.

com 104 . Bandwidth. and MTU D. and Load Answer: A Explanation: "Pass Any Exam. Reliability.www. Delay. Any Time. MTU. QUESTION NO: 129 Which parameter or parameters are used to calculate OSPF cost in Cisco routers? A.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. Bandwidth B. Delay." . This is called the “longest match” rule. Bandwidth and Delay C. the route with the most bits in the mask set to “1 will be chosen to route packet. Bandwidth.actualtests.

D Explanation: OSPF implements a two-tier hierarchical routing model that uses a core or backbone tier known as area zero (0). Router(config)# password-encryption C.) A." . Any Time. to lower costs by replacing routers with distribution layer switches Answer: B.www.actualtests. to speed up convergence D. Router(config)# service password-encryption D. to reduce the complexity of router configuration F. to confine network instability to single areas of the network E.C. reduced routing overhead. QUESTION NO: 131 Which command encrypts all plaintext passwords? A. to reduce routing overhead C.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. to decrease latency by increasing bandwidth B.com 105 .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. Router# password-encryption Answer: C Explanation: "Pass Any Exam. Attached to that backbone via area border routers (ABRs) are anumber of secondary tier areas.

1. the password for Telnet access should be encrypted.0.168. instead of many routes that all have the same next hop IP address. It is meant to prevent someone from looking over your shoulder and seeing the password.actualtests. This command uses a very weak encryption because the router has to be very quickly decode the passwords for its operation. that is all.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.com 106 . QUESTION NO: 132 Which two are advantages of static routing when compared to dynamic routing? (Choose two. F. Security increases because only the network administrator may change the routing table." .0.255 "Pass Any Exam. G.0 0. D. using automatic updates. 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. Any Time. Answer: B. Routing updates are automatically sent to neighbors. Which set of commands will accomplish this task? A.This is configured in global configuration mode. An efficient algorithm is used to build routing tables. For anyone viewing the configuration and issuing the show run command. Configuration complexity decreases as network size increases. in stub networks where there is only a single uplink connection. E. Routing traffic load is reduced when used in stub network links. B.) A. C. QUESTION NO: 133 A network administrator needs to allow only one Telnet connection to a router. the load is reduced as stub routers just need a single static default route. service password-encryption access-list 1 permit 192.G Explanation: Since static routing is a manual process. Routing tables adapt automatically to topology changes.Also. Route summarization is computed automatically by the router.www.

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." .actualtests.Cisco 200-120 Exam line vty 0 4 login password cisco access-class 1 B. Any Time. Incorrect answer: command. QUESTION NO: 134 Refer to the exhibit.www. enable password secret line vty 0 login password cisco C. "Pass Any Exam. service password-encryption line vty 1 login password cisco D.com 107 . line vty0 4 would enable all 5 vty connections.

2 F. You should generally only use default routing on stub networks—those with only one exit path out of the network.actualtests.252 128.1 D.16.Cisco 200-120 Exam The speed of all serial links is E1 and the speed of all Ethernet links is 100 Mb/s.255. ip route 0. ip route 0.0 172.107.0 255.0 255.0.0 255.0. What configuration on the Manchester router will establish a route toward the Internet for traffic that originates from workstations on the Manchester LAN? A.0.1 C.0 0.0.0.0. A static route will be established on the Manchester router to direct traffic toward the Internet over the most direct path available.16.com 108 . "Pass Any Exam.255.0.16.255.255. ip route 0.100.0. all traffic towards Internet that originates from workstations should forward to Router R1.0.100.2 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.107.100.0 128.0. According to exhibit.100.0 0.255 172.0 172. ip route 0. Any Time.www.0.2 B.0.1 E. ip route 0.0.0.0. Syntax for default route is: ip route <Remote_Network> <Netmask> <Next_Hop_Address>.1.255.16.0 0. ip route 0. QUESTION NO: 135 Refer to the exhibit." .0 172.0.255.1.0.0.

Cisco 200-120 Exam The network administrator must establish a route by which London workstations can forward traffic to the Manchester workstations.1.actualtests. Configure Manchester to advertise a static default route to London.16.0/22 to 10. What is the simplest way to accomplish this? A. QUESTION NO: 136 Refer to the exhibit. Configure a dynamic routing protocol on Manchester to advertise a default route to the London router. E. "Pass Any Exam.www. Any Time. Configure a dynamic routing protocol on London to advertise summarized routes to Manchester. Configure a static default route on London with a next hop of 10. F.2.1.com 109 . C." .1.1. Configure a dynamic routing protocol on London to advertise all routes to Manchester. B. 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.1. Configure a static route on London to direct all traffic destined for 172.0. D.

"Pass Any Exam.actualtests. C. a dynamic routing protocol on CentralRouter to advertise summarized routes to InternetRouter. a dynamic routing protocol on InternetRouter to advertise summarized routes to CentralRouter.) A. 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. B. B. a dynamic routing protocol on CentralRouter to advertise all routes to InternetRouter. QUESTION NO: 137 What is the effect of using the service password-encryption command? A.16. a static." .com 110 .0. Only the enable secret password will be encrypted.0/16 to CentralRouter. default route on CentralRouter that directs traffic to InternetRouter.Cisco 200-120 Exam The network administrator requires easy configuration options and minimal routing protocol traffic. a dynamic routing protocol on InternetRouter to advertise all routes to CentralRouter. Only the enable password will be encrypted. F. E. Any Time. Answer: C.F Explanation: The use of static routes will provide the necessary information for connectivity while producing no routing traffic overhead.www. a static route on InternetRouter to direct traffic that is destined for 172. D.

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

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

The process identifier on router A is different than the process identifier on router B. the OSPF and RIPv2 routes Answer: B Explanation: "Pass Any Exam. The values of the dead timers on the routers are different. The last is from RIPv2 and has a metric of 4. Any Time. Another route is from OSPF with a metric of 782. all three routes E.www. D.actualtests. router A & B must have the same Hello interval. what would cause router A not to form an adjacency with router B? A.com 113 .Cisco 200-120 Exam When running OSPF. the RIPv2 route D. B. Which route or routes will the router install in the routing table? A. The loopback addresses are on different subnets. One route is from EIGRP and has a composite metric of 20514560." . the EIGRP route C. Answer: B Explanation: To form an adjacency (become neighbor). 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 OSPF route B. C. Route summarization is enabled on both routers.

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

What path will packets take from a host on the 192.168.8/30 network (the network between R1 & R3) -> packets destined for 192. The path of the packets will be both R3 to R2 to R1 AND R3 to R1. The path of the packets will be R3 to R2 to R1.www. What command will display the required information? A.168.64/26 subnet." .10.10. The retransmit interval and the queue counts for the adjacent routers also need to be checked. Answer: D Explanation: Host on the LAN attached to router R1 belongs to 192. C. The retransmit interval (Smooth Round Trip Timer – SRTT) and the queue counts (Q count.9.64 will be routed from R3 -> R1 -> LAN on R1. Any Time. D.10.168. Router# show ip eigrp topology C.192/26 network to a host on the LAN attached to router R1? A. Router# show ip eigrp neighbors Answer: D Explanation: Below is an example of the show ip eigrp neighbors command. The path of the packets will be R3 to R1 to R2.10. 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.com 115 .10. The path of the packets will be R3 to R1. B. which shows the number of queued EIGRP packets) for the adjacent routers are listed: "Pass Any Exam.168.168. Router# show ip eigrp interfaces D. Router# show ip eigrp adjacency B.actualtests. which is an IP address in 192. From the output of the routing table of R3 we learn this network can be reach via 192.Cisco 200-120 Exam The company uses EIGRP as the routing protocol.

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

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

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

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

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

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

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

111. Distance Vector routing protocols pass periodic copies of routing table to neighbor routers and accumulate distance vectors.1.1 111.111.2 2.111 794 0x80000001 0x001E8B 10. Any Time.133.2.4.111.2.111.133.2.www. In distance vector routing protocols.1 111.Here is an example: Here is the lsa database on R2.111.133. show ip ospf link-state B.111.133 775 0x80000005 0x00B5B1 2 Net Link States (Area 0) Link ID ADV Router Age Seq# Checksum 10.4.3 133. show ip ospf neighbors D.4.4.Cisco 200-120 Exam E.133.133. QUESTION NO: 152 Which command is used to display the collection of OSPF link states? A.133.2.3 133.111 111. The routing updates proceed step by step from router to router.2.133.4 10." .com 123 . show ip ospf lsa database C.2 793 0x80000003 0x004F85 2 10.4 776 0x80000004 0x005643 1 111. R2#show ip ospf database OSPF Router with ID (2.133. routers discover the best path to destination from each neighbor.D Explanation: Distance means how far and Vector means in which direction.133 133.111.4.111.actualtests.4. show ip ospf database Answer: D Explanation: The “show ip ospf database” command displays the link states.2.133 812 0x80000001 0x004BA9 10.111 755 0x80000005 0x0059CA 2 133.4. Maintain the topology of the entire network in its database.111 755 0x80000001 0x007F16 10.2. Answer: A.133 775 0x80000001 0x00C31F "Pass Any Exam.1.2) (Process ID 1) Router Link States (Area 0) Link ID ADV Router Age Seq# Checksum Link count 2.2.4.

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

1." . QUESTION NO: 155 "Pass Any Exam.www.actualtests.1.Cisco 200-120 Exam The two exhibited devices are the only Cisco devices on the network.1. Given the output that is shown. The serial network between the two devices has a mask of 255.1. The platform of the neighbor router is cisco 2610.252.1 ->. C.1. Answer: A.2.C.255.255. Any Time. E.255. and “Port ID (outgoing port)” refers to the port on the neighbor router. what three statements are true of these devices? (Choose three.) A.1. So we can deduce the ip address (of the serial interface) of Manchester router is 10. Maybe the most difficult choice of this question is the answer E or F.255. The Manchester router is a Cisco 2610.2 and the question stated that the subnet mask of the network between two routersis 255.E Explanation: From the output. The Manchester serial address is 10. The London router is a Cisco 2610.1. The CDP information was sent by port Serial0/0 of the London router. as shown in the output ->. we learn that the IP address of the neighbor router is 10. B. Therefore there are only 2 available hosts in this network (22 – 2 = 2).252. The CDP information was received on port Serial0/0 of the Manchester router.1. The Manchester serial address is 10.1. D.com 125 . in this case it is the port of Manchester router. F. Please notice that “Interface” refers to the local port on the local router.

1 Answer: C.0. ip route 172.0. administrative distance C.E Explanation: Both the “ip default-network” and “ip route 0. meaning it will be preferred overall dynamic routing protocols.0.0.0.0.0.0. which two commands set the gateway of last resort to the default gateway? (Choose two.0.0 0.0.0 C.0.0 0. ip default-network 0. hop count B.1 E.2.0 D.0.Cisco 200-120 Exam If IP routing is enabled.0 B.0.0 0.0.0 172.2. ip default-route 0.0.) A.2.0." .0.0 (next hop)” commands can be used to set the default gateway in a Cisco router. link bandwidth D.If you want to have the dynamic routing protocol used and have the static route be used only as a backup. when a dynamic protocol is also being used? A.0. Any Time.16.1 0.16. QUESTION NO: 156 Which parameter would you tune to affect the selection of a static route as a backup. ip default-gateway 0. link delay E. you need to increase the AD of the static route so that it is higher than the dynamic routing protocol.0 172.com 126 . link cost Answer: B Explanation: By default the administrative distance of a static route is 1.0.www.16. "Pass Any Exam.0 0. QUESTION NO: 157 Refer to the exhibit. ip route 0.0.actualtests.

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

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

www." . Note: We can tell the router to ignore the start-up configuration on the next reload by setting the register to 0×2142.com 134 . Any Time. QUESTION NO: 166 What is the default administrative distance of OSPF? A. 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. Each routing protocol is prioritized in order of most to least reliable (believable) with the help of an administrative distance value.Cisco 200-120 Exam Explanation: The “System Configuration Dialog” appears only when no startup configuration file is found. So everything configured was deleted. 110 D. 100 C. Administrative distance defines the reliability of a routing protocol. 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).actualtests. 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. This will make the “System Configuration Dialog” appear at the next reload. 90 B.

"Pass Any Exam. provides common view of entire topology B. calculates shortest path D. utilizes event-triggered updates E. utilizes frequent periodic updates Answer: A.com 135 .) A. 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 ->." .actualtests.C.www.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. Any Time.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. exchanges routing tables with neighbors C.

link-state routing protocol utilizes event-triggered updates (only sends update when a change occurs) ->.Cisco 200-120 Exam Unlike Distance vector routing protocol (which utilizes frequent periodic updates).actualtests. D. The router will forward packets from R3 to R1. C.1? A.www.10.168." .192/26 LAN be forwarded to 192. B. QUESTION NO: 168 Refer to the exhibit. how will packets from a host within the 192.168.com 136 . Based on the exhibited routing table. The router will forward packets from R3 to R2 to R1 AND from R3 to R1. Answer: C "Pass Any Exam.10. Any Time. The router will forward packets from R3 to R1 to R2. The router will forward packets from R3 to R2 to R1.

168.actualtests.10. These commands need to be added to the configuration: C-router(config)# router eigrp 123 C-router(config-router)# network 172.9 &192.com 137 . No further routing configuration is required.0/30 is learned via 2 equal-cost paths (192. All the interfaces have been properly configured and IP routing is operational.www.Cisco 200-120 Exam Explanation: From the routing table we learn that network 192.0. What is true about this configuration? A.0.19. Any Time." .168.10.0 B. Answer: D Explanation: Since all the same router (C-router) is the default gateway for all three VLANs.19.0 0. C-router is to be used as a "router-on-a-stick" to route between the VLANs.168. These commands need to be added to the configuration: C-router(config)# router rip C-router(config-router)# network 172.0.3. These commands need to be added to the configuration: C-router(config)# router ospf 1 C-router(config-router)# network 172.0 D. The hosts in the VLANs have been configured with the appropriate default gateway.10.5) -> traffic to this network will be load-balancing.19.255 area 0 C.0. QUESTION NO: 169 Refer to the exhibit. all traffic destined "Pass Any Exam.

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

If you prefer not to use the CDP capability.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. In order to reenable CDP." .65? "Pass Any Exam. use the cdp run commandin global configuration mode. enable cdp B.The “cdp enable” command is an interface command. Any Time. not global. According to the routing table. cdp run D.www.com 139 . cdp enable C. where will the router send a packet destined for 10.5. disable it with the no cdp run command.actualtests. run cdp Answer: C Explanation: CDP is enabled on Cisco routers by default. QUESTION NO: 172 Refer to the exhibit.

255." . 192. 192.1. 192.25.252 Answer: C Explanation: The binary version of 20 is 10100.4 Answer: C Explanation: The destination IP address 10.5.0 255. 10.1.168.5.1.255.25. 10.168.168.25.5. QUESTION NO: 173 Refer to the exhibit.1.25.2.28 255.5. 192.252 C.168.255.64/28.1.64/27 subnets but the “longest prefix match” algorithm will choose the most specific subnet mask -> the prefix “/29 will be chosen to route the packet.3 D.255.255.255.2 B.252 E.255.255.2 C.16 255.240 D.www. Therefore the next-hop should be 10.com 140 . "Pass Any Exam.0 255.actualtests. Any Time.240 F.255.25.168.168.255.1.Cisco 200-120 Exam A.255. 10.1.16 255.1.3.240 B.65 belongs to 10.255.1.1.3 ->. 10.3. 10. 192. Which address and mask combination represents a summary of the routes learned by EIGRP? A.64/29 & 10.28 255.4. 192.25.

Note: From the output above. what is the operational status of the interfaces of R2 as indicated by the command output shown? A. The binary version of 28 is 11100.www.the best answer should be 192. So.1111 1111. The subnet mask is /28." .255.20 + 192.11110000) = 255. QUESTION NO: 174 Refer to the exhibit. Any Time.255. One interface has a problem.168.25.255.255. "Pass Any Exam. Therefore the subnet mask is /28 (=1111 1111.actualtests.28 -> The increment should bE.255.168. The interfaces are functioning correctly.24 + 192.240.240.Cisco 200-120 Exam The binary version of 16 is 10000. The mask is 255.com 141 . EIGRP learned 4 routes and we need to find out the summary of them: + 192. Assuming that the entire network topology is shown.16 255.25. Two interfaces have problems.168. C.16 + 192.25.168. B.25. The binary version of 24 is 11000.255.1111 1111.168.240. 28 – 16 = 12 but 12 is not an exponentiation of 2 so we must choose 16 (24).25.

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

" .5. "Pass Any Exam.1. 172.154. 192.2 B.16. if the router ID has not been manually set.1 C. 10.1.5. Any Time.actualtests.www.168.3 Answer: C Explanation: The highest IP address of all loopback interfaces will be chosen -> Loopback 0 will be chosen as the router ID.Cisco 200-120 Exam Given the output for this command.com 143 . QUESTION NO: 177 Refer to the exhibit.154. what router ID will OSPF use for this router? A. 10.1 D.

Different process identifiers can be used to run multiple OSPF processes "Pass Any Exam.www. Router(config)# router eigrp 100 Router(config-router)# network 192.255. B.) A.) Router(config)# router ospf 1 A. Switch1(config)# interface fastethernet 0/1 Switch1(config-if)# switchport mode trunk F.168." .168.actualtests.255.1.0 C.20. Router(config)# interface fastethernet 0/0 Router(config-if)# ip address 192.1.20.168. Switch1(config)# vlan database Switch1(config-vlan)# vtp domain XYZ Switch1(config-vlan)# vtp server E.168. Router(config)# interface fastethernet 0/0 Router(config-if)# no shut down Router(config)# interface fastethernet 0/0.1 Answer: B.1 255.10.E Explanation: The router will need to use subinterfaces.1 255.com 144 .168.2 Router(config-subif)# encapsulation dot1q 20 Router(config-subif)# ip address 192. where each subinterface is assigned a VLANand IP address for each VLAN.168.1 255.0 Router(config-if)# no shut down B. C.255.1 Router(config-subif)# encapsulation dot1q 10 Router(config-subif)# ip address 192.255.255.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. 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. Switch1(config)# interface vlan 1 Switch1(config-if)# ip default-gateway 192.0 Router(config-router)# network 192.0 Router(config)# interface fastethernet 0/0. Any Time.0 D. QUESTION NO: 178 Which two statements describe the process identifier that is used in the command to configure OSPF on a router? (Choose two. Only one process number can be used on the same router.255.On the switch.10. All OSPF routers in an area must have the same process ID.

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

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

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

10.0.actualtests.16. Router(config-router)# network 192.255.168.0 area 0 Answer: B.Next. a static route to network 192. it will choose the route that has the longest match.16. Router(config-router)# network 192.0/16 E. meaning the most specific route. not a subnet mask.So.10.0/24 C.0.255 area 0 F. an OSPF update for network 192. a default route with a next hop address of 192.168.Cisco 200-120 Exam D.0.16. Any Time.Directly connected routes have an AD of 1 so this will be the route chosen. What will the router consider the most reliable information about the path to that network? A. the ranges from 1 to 65535 so o is an invalid number ->but To configure OSPF.168. a directly connected interface with an address of 192. a static route to network 192.www.168.168.0/24 D.E Explanation: In the router ospfcommand. Router(config-router)# network 192.0/24 with a local serial interface configured as the next hop Answer: A Explanation: When there is more than one way to reach a destination.0.10.com 148 . in this case the /24 routes willbe chosen over the /16 routes.168.255 0 E.168.10.255. it will choose the best one based on a couple of things." .10.0 255.0 0.First. a RIP update for network 192.168.0. 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.254/24 B. we need a wildcard in the “network” statement.1 F.0 0.0/24 from multiple sources. We also need to assgin an area to this process ->. QUESTION NO: 183 A router receives information about network 192.10.168. from all the /24 routes it will choose the one with the lowest administrative distance.168.

Any Time. show users D. 8 C. 2 B.actualtests. show session C." .com 149 . The question asks about “your active Telnet connections”. unlimited Answer: B Explanation: maximum-paths (OSPF) To control the maximum number of parallel routes that Open Shortest Path First (OSPF) can support. show cdp neigbors B. 16 D.www. Command Default 8paths QUESTION NO: 185 Which command shows your active Telnet connections? A. 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). "Pass Any Exam. The range is from 1 to 16 routes. use themaximum-pathscommand.Cisco 200-120 Exam A. 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.

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

Any Time.168. Switch1(config)# interface fa0/1 "Pass Any Exam.24.com 151 .0 C.actualtests.1 D." . Switch1(config)# ip default-gateway 192.Cisco 200-120 Exam Given the information in the graphic and assuming that the router and Switch2 are configured properly.24.www. Switch1(config)# interface fa0/1 Switch1(config-if)# duplex full Switch1(config-if)# speed 100 E.168.255.255.3 255. Switch1(config)# interface fa0/1 Switch1(config-if)# ip address 192. which of the following commands should be issued on Switch1 to correct this problem? A. Switch1(config)# line con0 Switch1(config-line)# password cisco Switch1(config-line)#login B.

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

QUESTION NO: 189 Two routers named Atlanta and Brevard are connected via their serial interfaces as illustrated. link reliability too low F. The Atlanta router is known to have the correct configuration. insufficient bandwidth C. incompatible IP address B. IPCP closed Answer: D Explanation: Because Interface Serial 0 of Atlanta Router has 192. Since VLAN1 is the only interface shown in the output.www.10. These are from different network. Any Time." .2.168. identify the fault on the Brevard router that is causing the lack of connectivity.168.actualtests. but they are unable to communicate.Cisco 200-120 Exam is brought back up.com 153 . incorrect subnet mask D. incompatible encapsulation E.1 And Interface Serial 1 of Router Brevard has 192. Given the partial configurations.11. you have to assume that no other VLAN interface has been configured with an IP Address. A. QUESTION NO: 190 "Pass Any Exam.

and was able to ping the server.2.18.5.22. what configuration error is causing this problem? Router(config)# router ospf 1 Router(config-router)# network 10. The networks attached to the new router do not appear in the routing tables of the other OSPF routers. F. Given the information in the partial configuration shown below. C. E. A static route is configured incorrectly. Based on the output of the show ip route command and the topology shown in the graphic.0. The FastEthernet interface on Coffee is disabled. The network has not fully converged. B.22.Cisco 200-120 Exam Users on the 172. The routing table on Coffee has not updated. issued the show ip route command.19. The network administrator connected to router Coffee via the console port. IProute 0.22. D. what is the cause of the failure? A.2 to reach server located on 172.0 network cannot reach the server located on the 172.0.www.0 network.0 0.com 154 ." .31.5.0 255. Answer: C Explanation: The default route or the static route was configured with incorrect next-hop ip address 172.0.0 network. The neighbor relationship table is not correctly updated.22.actualtests. Any Time.0.0. IP routing is not enabled.17.0.0.31.0. The correct IPaddress will be 172.2 QUESTION NO: 191 A network administrator is trying to add a new router into an established OSPF network.0 area 0 "Pass Any Exam.0 172.18.

0. The network subnet mask is configured improperly.255 area 0.12010.11210.11212460x800002340x009CAC1 10. It is created using the MAC Address of the loopback interface. Answer: A.0.11310. E. "Pass Any Exam. By default. The OSPF area is configured improperly. It identifies the source of a Type 1 LSA.” QUESTION NO: 192 Which two statements about the OSPF Router ID are true? (Choose two. B. who are the other routers in our area? Router Link States (Area 1) Link IDADV RouterAgeSeq#ChecksumLink count 10. the lowest IP address on the router becomes the OSPF Router ID.0.) A. It should be the same on all routers in an OSPF routing instance.0. Any Time.0. F.0.0.0. B.actualtests.0. E.0. The network number is configured improperly.1201520x800002400x0046CB1 We can see OSPF Router ID will beused as source of Type 1 LSA. D.In this specific example.Also the router will chose the highest loopback interface as its OSPF router ID (if available).0.com 155 .0. The router automatically chooses the IP address of a loopback as the OSPF Router ID. The network wildcard mask is configured improperly. The AS is configured improperly.120) (Process ID 1) Next.0.0.1116000x8000023A0x0092B31 10. Answer: C Explanation: When configuring OSPF.Cisco 200-120 Exam A. The process id is configured improperly.D Explanation: r120#show ip ospf data OSPF Router with ID (10." .www.0. C. C.0.0.0.1131480x8000022C0x0043993 10.0.11110. the correct syntax would have been “network 10.0.0.0. D.0 0. the mask used for the network statement is a wildcard mask similar to an access list.

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

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

1. router ospf area 0 network 10.0 area 0 F.0 area 0 B.com/article/2225270/cisco-subnet/ospfv3-for-ipv4-andipv6." .actualtests.1.255 area 0 D.255 area 0 E.0.Cisco 200-120 Exam D.255.html QUESTION NO: 197 What command sequence will configure a router to run OSPF and add network 10.255.1.0.255. Answer: B.enable 2. Any Time.0. router ospf 1 network 10.0 0. router ospf network 10.1.D Explanation: Here is a list of the differences between OSPFv2 and OSPFv3: Reference: http://www.1.0.1.1.0 255.1.0 255. router ospf area 0 network 10.1.0.end DETAILED STEPS "Pass Any Exam.1. router ospf network 10.networkip-addresswildcard-maskareaarea-id 5.0 /24 to area 0? A.255 C.0.255 Answer: C Explanation: SUMMARY STEPS 1.0 0.1. router ospf 1 network 10.0 0.0.networkworld.1. It routes over links rather than over networks.router ospfprocess-id 4.1.configureterminal 3.0 0.255.com 158 .www.1.0.

3 area 0 Defines an interface on which OSPF runs and defines the area ID for that interface.html#GUID-588D1301-F63C-4DAC-BF1C-C3735EB13673 "Pass Any Exam.www.0.com 159 .168.0. Reference: http://www.cisco. Step2 Configureterminal Example: Device# configure terminal Enters global configuration mode.com/c/en/us/td/docs/ios-xml/ios/iproute_ospf/configuration/12-4t/iro12-4t-book/iro-cfg.Cisco 200-120 Exam Command or Action Purpose Step1 Enable Example: Device> enable Enables privileged EXEC mode." . Step5 End Example: Device(config-router)# end Exits router configuration mode and returns to privileged EXEC mode.actualtests. Any Time. Step3 router ospfprocess-id Example: Device(config)# router ospf 109 Enables OSPF routing and enters router configuration mode. Step4 Networkip-addresswildcard-maskareaarea-id Example: Device(config-router)# network 192.129.16 0.

172.0.actualtests.255.255.1.0. network 255. 1.255 0. will include all interfaces into area 0? A. 192.Cisco 200-120 Exam QUESTION NO: 198 Refer to the exhibit. network 0.2.0.1.www.1 B. 2.0.0. If the router Cisco returns the given output and has not had its router ID set manually.If more than one loopback interfaces are configured.com 160 .255 area 0 B. Any Time. when configured.0.0 255.0. what value will OSPF use as its router ID? A.0 0. network 0.255.1 C. the router will compare the IP addresses of each of the interfaces and choose the highest IP address from the loopbacks." . QUESTION NO: 199 What OSPF command.1.0.168.1.0 area 0 C.0 area 0 "Pass Any Exam.2.2 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.1 D.16.255.

It is locally significant and must be the same throughout an area.0.255. place it in area 0.Cisco 200-120 Exam D.2 billion.0. B.255) what the IP address is.0 255. It is globally significant and is used to identify OSPF stub areas. Don't get this confused with area numbers. Any Time. D.www." .255. It is globally significant and is used to represent the AS number.255 area 0dictates that you do not care (255.255. Example 3-1Configuring OSPF in a Single Area router ospf 1 network 0. or each router can have a different number-it just doesn't matter.actualtests. The network commandnetwork 0.535.255.255. The numbers you can use are from 1 to 65. 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. 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. IP Services QUESTION NO: 201 "Pass Any Exam. which can be from 0 to 4.com/articles/article. It is locally significant and is used to identify an instance of the OSPF database.0. but if an IP address is enabled on any interface.0.255. C. Topic 5.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.255 area 0 Reference: http://www.0 255.ciscopress.

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

ExternalRouter must be configured with static routes to networks 172. Answer: D Explanation: The DHCP lifecycle consists of the following: QUESTION NO: 204 What are two benefits of using NAT? (Choose two. B. D.Cisco 200-120 Exam What statement is true of the configuration for this network? A. which periodically contact the DHCP server to renew the lease. NAT eliminates the need to re-address all hosts that require external access." . at the end of the period.16.0/24 and 172. The number 1 referred to in the ip nat inside source command references access-list number 1. Any Time. QUESTION NO: 203 Which statement describes the process of dynamically assigning IP addresses by the DHCP server? A.www. NAT facilitates end-to-end communication when IPsec is enabled. the Serial0/0 interface address will not support the NAT configuration as shown. C.) A.actualtests. "Pass Any Exam.1. Addresses are assigned for a fixed period of time. B.0/24. D. Addresses are allocated after a negotiation between the server and the host to determine the length of the agreement. Addresses are leased to hosts.16. Addresses are permanently assigned so that the hosts uses the same address at all times. The configuration that is shown provides inadequate outside address space for translation of the number of inside addresses that are supported. Because of the addressing on interface FastEthernet0/1. a new request for an address must be made.2.com 163 . Answer: C Explanation: The “list 1 refers to the access-list number 1. B. C.

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

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

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

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

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

AE01 C. D. 0000.actualtests.AC15 D. 0007. in which xxx is the HSRP group. in which xx is the HSRP group.Since these are static. The GLBP member routers will reply with one of four possible burned in hardware addresses. + With HSRP version 1.0FFF. B.com 169 .73A0. All GLBP member routers will reply in round-robin fashion. 0007.This is typically done to allow incoming connections from the outside (Internet) to theinside. which router will respond to client ARP requests? A. the virtual MAC address if 0000. they are always present in the NAT table even if they are not actively in use.B301 Answer: C Explanation: With HSRP. QUESTION NO: 214 In GLBP.73A0. QUESTION NO: 213 What is a valid HSRP virtual MAC address? A.ACxx .0000 through 0005.5E00.01A3 B. the virtual router’s MAC address is 0000. The active virtual gateway will reply with one of four possible virtual MAC addresses. C. The active virtual gateway will reply with its own hardware MAC address.www. + With HSRP version 2.5E00.0C9F.Fxxx.B400.0c07.Cisco 200-120 Exam Static NAT is to map a single outside IP addressto a single inside IP address. in which the MAC address range from 0005." . Note: Another case is HSRP for IPv6. Any Time.0C07. 0000. There are two version of HSRP. "Pass Any Exam. two or more devices support a virtual router with a fictitious MAC address and unique IP address.

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

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

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

local7 Answer: D "Pass Any Exam.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.com 173 . that level and all the higher levels will be logged. QUESTION NO: 220 What is the default Syslog facility level? A. critical. alerts. all the logging of emergencies. but significant. Any Time.www.actualtests. For example. conditions exist 6 informational Informational messages 7 debugging Debugging messages If you specify a level with the “loggingtrap level” command. and errors. local5 C. local6 D." . will be logged. local4 B. by using the “logging trap 3 command.

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

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

conditions exist 6 informational Informational messages 7 debugging Debugging messages If you specify a level with the “logging trap level” command.com 176 .Cisco 200-120 Exam Reference: http://www. Alert D.actualtests. but significant. For example. warnings will be logged. Any Time. alerts. critical. Emergency B. Error E. Notice C.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. all the logging of emergencies.cisco.html QUESTION NO: 224 What levels will be trapped if the administrator executes the command router(config)# logging trap 4 (Choose four) A.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. errors. by using the “logging trap 4 command. Warning Answer: A." .www.D. QUESTION NO: 225 "Pass Any Exam.C. that level and all the higher levels will be logged.

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

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

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

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

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

Authentication D. E. all the logging of emergencies.com 182 . QUESTION NO: 231 What are the alert messages generated by SNMP agents called? A.Cisco 200-120 Exam “logging console level” command. alerts. which is nothing more than an acknowledged TRAP. QUESTION NO: 232 Which three features are added in SNMPv3 over SNMPv2? A. critical. Compression C.B Explanation: A TRAP is a SNMP message sent from one application to another (which is typically on a remote host). For example. Any Time.actualtests.C. GET D. by using the “logging console warnings” command. that level and all the higher levels will be displayed. errors. Encryption E. TRAP B. warnings will be displayed.D Explanation: Cisco IOS software supports the following versions of SNMP: "Pass Any Exam. SET Answer: A. etc." .www. has been noticed. SNMPv2 PDUs fixed this by introducing the notion of an INFORM. Their purpose is merely to notify the other application that something has happened. INFORM C. Message Integrity B. 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. Error Detection Answer: A.

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

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

Cisco 200-120 Exam + The switch does not support port security aging of sticky secure MAC addresses. + The protect and restrict options cannot be simultaneously enabled on an interface.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.com 185 .www. Any Time." .actualtests.cisco. (Not all options are used.) Answer: Explanation: "Pass Any Exam.1_19_ea1/config uration/guide/swtrafc. (Reference: http://www.com/en/US/docs/switches/lan/catalyst3550/software/release/12.

Cisco 200-120 Exam QUESTION NO: 236 Refer to the exhibit. the port is to drop frames from this device." . Any Time. 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. If any other device is detected. and then observes the output from these two show "Pass Any Exam.com 186 . The administrator configured the interface and tested it with successful pings from PC_A to RouterA.www.actualtests.

Also. switch(config-if)#switchport mode trunk switch(config-if)#switchport port-security maximum 1 B.D Explanation: From the output we can see that port security is disabled so this needs to be enabled. QUESTION NO: 237 Which set of commands is recommended to prevent the use of a hub in the access layer? A. enable the port security and set the maximum number of connections to 1. B. Which two of these changes are necessary for SwitchA to meet the requirements? (Choose two. C. Port security needs to be enabled on the interface.www. you should perform the following configurations in the interface mode: First. switch(config-if)#switchport mode access switch(config-if)#switchport port-security maximum 1 D.com 187 . Port security interface counters need to be cleared before using the show command. Any Time.) A.Cisco 200-120 Exam commands. 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. Port security needs to be configured to allow only one learned MAC address." . D.actualtests. In order to satisfy the requirements of this question. E. Answer: B. F. 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. Port security needs to be configured to shut down the interface in the event of a violation. Port security needs to be globally enabled. switch(config-if)#switchport mode trunk switch(config-if)#switchport port-security mac-address 1 C. configure the interface mode as the access mode Second. "Pass Any Exam. The port security configuration needs to be saved to NVRAM before it can become active.

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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188

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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191

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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192

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

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

Cisco 200-120 Exam QUESTION NO: 245 Which statement about access lists that are applied to an interface is true? A.146. QUESTION NO: 247 A network administrator is configuring ACLs on a Cisco router.148.) "Pass Any Exam.www.0. Which two ACL statements. B. access list 101 deny tcp any host 192. per Layer 3 protocol.1.149." . per direction and per interface.actualtests.0. You can configure one access list. per direction.168. You can apply only one access list on any interface.255 C. D.0.1 D. Answer: C Explanation: We can have only 1 access list per protocol.168.168.168.com 195 .168. 192.1 0. would you use to accomplish this task? (Choose two. and 192.168.1 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. when combined.168. to allow traffic from hosts on networks 192.1. C.0.0 only. access-list 110 permit ip any any B. You can apply multiple access lists with the same protocol or in different directions. 192.147.0. Any Time. access-list 50 deny 192. access-list 2500 deny tcp any host 192.1. You can place as many access lists as you want on any interface. 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.

E. "Pass Any Exam. someone can still access the virtual terminal interfaces via other interfaces -> We cannot physically secure a virtual interface because it is “virtual” ->.0.0 255.255 D.0 0.168.0.168. access-list 10 permit ip 192.0 networks. D.255 F.0 and 192. and “access-list 10 permit ip 192.146.Cisco 200-120 Exam A.E Explanation: It is a waste to administratively shut down the interface. C.0 Answer: A. Administratively shut down the interface.146.168.0.148.255 B.148.255.0 0.168.255. The “access-group” command is only used to apply an access list to a physical interface -> C is not correct. The most simple way to secure the virtual terminal interface is to configure a username & password to prevent unauthorized login.168.0 networks. access-list 10 permit ip 192.146.146. Any Time. Create an access list and apply it to the virtual terminal interfaces with the access-group command.0 0. access-list 10 permit ip 192.0 and 192.actualtests.0.168.147.168.0 0.0.255” would allow only the 192.com 196 .0 0.146.1." .1.168.0 0. Answer: D.149.255” would allow only the 192.www. access-list 10 permit ip 192.148. Physically secure the interface.0.149.168.1.255. Moreover.168. B. access-list 10 permit ip 192. Enter an access list and apply it to the virtual terminal interfaces using the access-class command.255.147.0 0.C Explanation: “access-list 10 permit ip 192. access-list 10 permit ip 192.1.168.255 C.0.168. Configure a virtual terminal password and login process.) A. To apply an access list to a virtual terminal interface we must use the “access-class” command.0. QUESTION NO: 248 What can be done to secure the virtual terminal interfaces on a router? (Choose two.255 E.

"Pass Any Exam.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.www. SW1#show port-security interface FastEthernet 0/12 E. SW1#show switchport port-security interface FastEthernet 0/12 Answer: C.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." .actualtests. SW1#show switchport port-secure interface FastEthernet 0/12 C.com 197 . An example of the output of “show port-security interface” command is shown below: QUESTION NO: 250 Refer to the exhibit. SW1#show running-config D. SW1#show port-secure interface FastEthernet 0/12 B. Any Time.) A.

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

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

line protocol is down”. "Pass Any Exam. There is only one special case with the statement “…. so you have to check Layer 1 before checking Layer 2. For the statement “Serial0/1 is down. is administrator down.com 200 . 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. line protocol is down”.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. both layers are down so the problem belongs to Layer 1.actualtests. In this case. For example." . the last statement is for Layer 2 and if Layer 1 is down then surely Layer 2 will be down too”. Any Time. we know that the port is currently disabled and shut down by the administrators.www. from the output “Serial0/1 is up.

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

What is the problem? A. B. D." . TCP/IP is not functioning on Host1 C. The default gateway on Host1 is incorrect. QUESTION NO: 254 Refer to the exhibit.0.com 202 . The link between Router1 and Router2 is down.com.actualtests. microsoft. The link between Host1 and Switch1 is down. 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). According to "Pass Any Exam. 2) and TCP/IP stack (layer 3) are working properly. If it works then the NIC card (layer 1.0. For example. Verify IP configuration belongs to layer 3. We are using a URL so this step belongs to layer 7 of the OSI model. Interface Fa0/0 on Router1 is shutdown. A network administrator attempts to ping Host2 from Host1 and receives the results that are shown.www.1. The message destination host unreachable from Router1 indicates that the problem occurs when the data is forwarded from Host1 to Host2. F. Any Time. 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. E.Cisco 200-120 Exam 127. Answer: C Explanation: Host1 tries to communicate with Host2. checking if the IP can be assignable for host.

2.www.3. B. The encapsulation that is configured on S0/0 of RouterB does not match the encapsulation that is configured on S0/0 of RouterA. QUESTION NO: 255 Refer to the exhibit. D. C.com 203 .168.F Explanation: From the output we can see that there is a problemwith the Serial 0/0 interface.0.0 are unable to reach hosts in network 192. Answer: E.It is enabled. what are two possible reasons for the failure? (Choose two. F. Therecould be a result of mismatched encapsulation or the interface not receiving a clock signal from the CSU/DSU. E. Hosts in network 192. The IP address that is configured on S0/0 of RouterB is not in the correct subnet." . Any Time.Cisco 200-120 Exam the topology. but the line protocol is down. Interface S0/0 on RouterA is configured with an incorrect subnet mask. "Pass Any Exam.168. Interface S0/0 on RouterB is administratively down. Interface S0/0 on RouterA is not receiving a clock signal from the CSU/DSU. The cable that is connected to S0/0 on RouterA is faulty. we can infer that the link between Router1 and Router2 is down.actualtests.) A. Based on the output from RouterA.

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

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

10. Which of the following will correct the problems? (Choose two.2.255.1.1. The layer3 addressing information of Host B should be modified as follows: Address : 10.12 Mask : 255.X Mask : 255. Configure the gateway on Host B as 10.1.1.10.1.1. B.254 The IP information of member Host B in VLAN2 is as follows: Address : 10. E.1. Configure the masks on both hosts to be 255.240.) A.2.254/24 VLAN1 Fa0/0.2.255.1.1. The IP information of member Host A in VLAN1 is as follows: Address : 10.254.2. Configure the IP address of Host B as 10.255.1 -." .1.1.2.255.www.255.255. Configure the IP address of Host A as 10.0 Gateway : 10.0 "Pass Any Exam.D Explanation: The switch 1 is configured with two VLANs: VLAN1 and VLAN2. Configure the gateway on Host A as 10. C.224.com 206 .255. F.2.1.254 The configuration of sub-interface on router 2 is as follows: Fa0/0.2.255.255.1.1.actualtests.254/24 VLAN2 It is obvious that the configurations of the gateways of members in VLAN2 and the associated network segments are wrong.1. Any Time.0 Gateway : 10. Configure the masks on both hosts to be 255.1.255.2 -. D.1.126 Mask : 255.Cisco 200-120 Exam The network shown in the diagram is experiencing connectivity problems. Answer: B.1.

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

168.1. Answer: D Explanation: Now let’s find out the range of the networks on serial link: For the network 192. The serial interfaces of the routers are not on the same subnet.1.63 For the network 192. Any Time.1. HostA cannot ping HostB.62/27: Increment: 32 Network address: 192.1.95 -> These two IP addresses don’t belong to the same network and they can’t see each other. what is the cause of this problem? A.168.168." .com 208 . The address of SwitchA is a subnet address.1. The Fa0/0 interface on RouterA is on a subnet that can't be used.168.www.65/27: Increment: 32 Network address: 192.actualtests.1. HostA is not on the same subnet as its default gateway.168. Assuming routing is properly configured. The Fa0/0 interface on RouterB is using a broadcast address. B. E. D.64 Broadcast address: 192.168.Cisco 200-120 Exam QUESTION NO: 260 Refer to the exhibit. "Pass Any Exam. C.32 Broadcast address: 192.

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

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

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

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

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www." .com 215 .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”. Any Time. Correctly assign an IP address to interface fa0/1.actualtests. B. "Pass Any Exam.

The 3rd line denies all telnet traffic and the 4th line allows icmp traffic to be sent (ping). QUESTION NO: 265 An administrator is trying to ping and telnet from SwitchC to RouterC with the results shown below. Removeaccess-group 102 outfrom interface s0/0/0 and addaccess-group 114 in E.Cisco 200-120 Exam C. D. "Pass Any Exam. Removeaccess-group 106 infrom interface fa0/0 and addaccess-group 104 in. Any Time. Removeaccess-group 106 infrom interface fa0/0 and addaccess-group 115 in.com 216 .www. 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.actualtests." . 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.

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

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com 220 ." . Attempts to telnet to the router would fail. "Pass Any Exam. Any Time. It would allow all traffic from the 10.4.www.0 network.actualtests.4.Cisco 200-120 Exam What would be the effect of issuing the command ip access-group 114 in to the fa0/0 interface? A. B.

4. Answer: B Explanation: From the output of access-list 114: access-list 114 permit ip 10.0/24 network QUESTION NO: 266 An administrator is trying to ping and telnet from SwitchC to RouterC with the results shown below.actualtests.Cisco 200-120 Exam C. Routing protocol updates for the 10.4.0. D.0 0. "Pass Any Exam.0 network would not be accepted from the fa0/0 interface. Click the console connected to RouterC and issue the appropriate commands to answer the questions.com 221 .4.www.4." .0.4. Any Time.4.255 any we can easily understand that this access list allows all traffic (ip) from 10. IP traffic would be passed through the interface but TCP and UDP traffic would not.

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www.com 225 ." . "Pass Any Exam.actualtests.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. Any Time. No host could connect to RouterC through s0/0/1.

com has a small network that is using EIGRP as its IGP.168.com has recently added the ENG router.168. and www would work but telnet would fail. All routers should be running an EIGRP AS number of 12." . Only traffic from the 10.4.0. FTP-DATA. the ENG router does not have connectivity to the ISP router. IP addresses are listed in the chart below. Telnet and ping would work but routing updates would fail. Router MGT is also running static routing to the ISP. echo.6 S0/0 – 192. All over interconnectivity and Internet access for the existing locations of the company are working properly. All passwords on all routers are cisco. MGT Fa0/0 – 192.www.com 226 .27.Cisco 200-120 Exam B. Answer: A Explanation: First let’s see what was configured on interface S0/0/1: QUESTION NO: 267 CORRECT TEXT CCNA.0 network would pass through the interface.actualtests. CCNA. C.4. Currently. FTP.77.33 S1/0 – 198.9 "Pass Any Exam.18. Any Time. The task is to identify the fault(s) and correct the router configuration(s) to provide full connectivity between the routers. D. Access to the router CLI can be gained by clicking on the appropriate host.

168.27.168.12.actualtests.49 S0/0 – 192.22 "Pass Any Exam.34 Fa1/0 – 192.12.168.12.10 Parts2 Fa0/0 – 192.17 Fa0/1 – 192.168.168.168.33 Fa0/1 – 192.65 Fa0/1 – 192.168.77.12.12.168.21 ENG Fa0/0 – 192.12.1 Parts1 Fa0/0 – 192.50.168.com 227 .81 S0/1 – 192. Any Time.168.www.50.Cisco 200-120 Exam S0/1 – 192." .

"Pass Any Exam.0 QUESTION NO: 268 CORRECT TEXT The following have already been configured on the router: .com 228 .Cisco 200-120 Exam Answer: On the MGT Router: Config t Router eigrp 12 Network 192.www. Any Time.The appropriate interfaces have been configured for NAT inside and NAT outside.The basic router configuration .actualtests." .77.168.

Configuration information: router name – Weaver inside global addresses – 198.184.100.18.105 198.105 .168.18.Cisco 200-120 Exam .18. no routing protocol will be required) .168.com 229 .17 – 192.110/29 inside local addresses . Functionality can be tested by clicking on the host provided for testing. The company has 14 hosts that need to access the internet simultaneously. Answer: The company has 14 hosts that need to access the internet simultaneously butwe just have 6 public IP addresses from 198. 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. The hosts in the company LAN have been assigned private space addresses in the range of 192.100.184.110/29. Any Time.168.actualtests.30.184.110.100.184.192." .184.www.198.100.The appropriate static routes have also been configured (since the company will be a stub network.168.18.18.105 to 198.30/28 number of inside hosts – 14 A network associate is configuring a router for the weaver company to provide internet access. The ISP has provided the company six public IP addresses of 198.All passwords have been temporarily set to “cisco”.184. 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.17 – 192.18.

actualtests.184. Weaver(config)#ip nat pool mypool 198.184.30.184. Overloadkeyword allows to map multiple IP addresses to a single registered IPaddress (many-toone) by using different ports.248 Create a standard access control list that permits the addresses that are to betranslated.16 0. This is how to configure the NAT inside and NAT outside. 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 192.18. Complete the network installation by performing the initial router configurations and configuring R1PV2 routing using the router command line interface (CLI) on the RC. Weaver(config)#access-list 1 permit 192.0. whichmeans a source address from 192.2.18.114 The ping should work well and you will be replied from 192.com 230 .255.110 netmask 255.15 Establish dynamic source translation. into anaddress from the pool named mypool (the pool contains addresses from198.184.0.168. 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. The question said that appropriate interfaces have been configured for NATinside and NAT outside statements.17 to 192.0.18." .www. Configure the router per the following requirements: Name of the router is R2 Enable. Weaver(config)#ip nat inside source list 1 pool mypool overload This command translates all source addresses that pass access list 1.105 to 198.100.105 198. Any Time.0.168.168.18.110).100.114 QUESTION NO: 269 CORRECT TEXT Central Florida Widgets recently installed a new router in their office.255.2.100. specifying the access list that was definedin the prior step.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. secret password is cisco "Pass Any Exam.

201.actualtests.2. 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. The password to allow telnet access to the router is xxx 5. the actual information will prevail.com 231 . please note the following.router has last assignable host address in the subnet.165. Router protocol is RIPV2 Attention: In practical examinations. Enable.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 209.176/28 . 1. Password In access user EXEC mode using the console is xxx 4. Name or the router is xxx 2.router has fourth assignable host address in subnet Serial network is 192. Interfaces should be enabled.www.0.0/27 . Any Time." . secret password is xxx 3.

165.201.2. Since there are multiple resources for the corporation at this location including other resources on the Finance Web Server.190 255. "Pass Any Exam.com 232 .Cisco 200-120 Exam R2(config-if)#ip address 209. all other traffic should be allowed.0.176 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.201.2.0. The user on host C should be able to use a web browser to access financial information from the Finance Web Server.www.224 R2(config)#interface s0/0/0 R2(config-if)#ip address 192.240 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.4 255.255.actualtests.0 R2(config-router)#network 192. All other traffic is permitted. 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." .255. No other hosts from the LAN nor the Core should be able to use a web browser to access this server.255.255.165. Any Time.

host B 192.F Explanation: NetFlow facilitates solutions to many common problems encountered by IT professionals.host C 192.26 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. F.actualtests.22. "Pass Any Exam. + Reduction in peak WAN traffic Use NetFlow statistics to measure WAN traffic improvement from application-policy changes.D.3 Answer: Corp1#conf t Corp1(config)# access-list 128 permit tcp host 192.240. To diagnose slow network performance. + Analyze new applications and their network impact Identify new application network loads such as VoIP or remote site additions.240.240. bandwidth hogs. To confirm the appropriate amount of bandwidth that has been allocated to each Class of Service.168.168." . To identify applications causing congestion.65 The computers in the Hosts LAN have been assigned addresses of 192.240. To report and alert link up / down instances.240. To detect suboptimal routing in the network.141.168.168.18.141.1 192. E.168. understand who is utilizing the network and the network top talkers.168.1 host 172.2 .host A 192.254 .26 eq www Corp1(config)# access-list 128 deny tcp any host 172. The Core connection uses an IP address of 198.240.www. D. To authorize user network access. and bandwidth utilization. All passwords have been temporarily set to "cisco".Cisco 200-120 Exam Access to the router CLI can be gained by clicking on the appropriate host.) A. B. C.247. Answer: A.com 233 . Any Time.1 .22.

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

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

destination IP address F. Any Time. egress interface D. ingress interface E.com 236 . IP next-hop Answer: A.D." .) A.actualtests. source IP address B.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.com/c/en/us/products/collateral/ios-nx-os-software/iosnetflow/prod_white_paper0900aecd80406232.Cisco 200-120 Exam The “show ip cache flow” command displays a summary of the NetFlow accounting statistics.E Explanation: "Pass Any Exam.cisco. source MAC address C.www. Reference: http://www.

Cisco 200-120 Exam Each packet that is forwarded within a router or switch is examined for a set of IP packet attributes.com 237 . Any Time. These attributes are the IP packet identity or fingerprint of the packet and determine if the packet is unique or similar to other packets. an IP Flow is based on a set of 5 and up to 7 IP packet attributes. source/destination ports.www. port availability E.com/c/en/us/products/collateral/ios-nx-os-software/iosnetflow/prod_white_paper0900aecd80406232. 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." . Traditionally.) A. CPU utilization B. WAN encapsulation Answer: A. where Netflow data will be sent C.html QUESTION NO: 276 What are three factors a network administrator must consider before implementing Netflow in the network? (Choose three. but you will still want to check it out before you turn on the feature. Services running on the device may also "Pass Any Exam.B. 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. 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.cisco. Reference: http://www. SNMP version F.actualtests. number of devices exporting Netflow data D. Some symptoms of high CPU utilization are very large jitter and increased delay.C Explanation: NetFlow has a reputation for increasing CPU utilization on your network devices.

If the devices produced the given output. Reference: http://searchenterprisewan.com/tip/How-the-NetFlow-protocol-monitorsyour-WAN QUESTION NO: 277 Refer to the exhibit. D. B. the traffic can be substantial. There is an MTU mismatch between SW1's Fa0/1 and SW2's Fa0/1 interfaces. Another thing to keep in mind is the amount of data you're going to be sending across the network. C. Depending on how much traffic you have and how you configure it.Cisco 200-120 Exam be affected. Also bear in mind that the flows from aggregating large numbers of devices can add up.techtarget. SW1's Fa0/1 interface is administratively shut down. Any Time.actualtests. what is the cause of the EtherChannel problem? A. 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.com 238 . Answer: D Explanation: "Pass Any Exam.www. There is an encapsulation mismatch between SW1's Fa0/1 and SW2's Fa0/1 interfaces." . There is a speed mismatch between SW1's Fa0/1 and SW2's Fa0/1 interfaces. For example.

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

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

Your company has decided to connect the main office with three other remote branch offices using point-to-point serial links." . 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. L3 protocol type E.actualtests. Any Time.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. MAC address Answer: A. Port numbers D. Traditionally.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.com 241 . "Pass Any Exam. 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. 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 address B.C.

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

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

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.www.actualtests. "Pass Any Exam." .com 246 . Your company has decided to connect the main office with three other remote branch offices using point-to-point serial links. Any Time. You are required to troubleshoot and resolve OSPF neighbor adjacency issues between the main office and the routers located in the remote branch offices.

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

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

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

You are required to troubleshoot and resolve OSPF neighbor adjacency issues between the main office and the routers located in the remote branch offices. Your company has decided to connect the main office with three other remote branch offices using point-to-point serial links. "Pass Any Exam.Cisco 200-120 Exam Answer: B Explanation: Looking at the configuration of R1.www. QUESTION NO: 284 Scenario Refer to the topology.com 255 . Any Time.actualtests. 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)." .

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

Use the appropriate show commands to troubleshoot the issues. "Pass Any Exam. R2 and R3 are connected to the switches SW1 and SW2. and R3 with serial links.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. Any Time.com 260 . The EIGRP routing protocol is configured. R2. Your company has connected the routers R1. SW1 and SW2 are also connected to the routers R4 and R5." . respectively.www.actualtests. You are required to troubleshoot and resolve the EIGRP issues between the various routers. QUESTION NO: 285 Scenario Refer to the topology.

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

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B. R4 has been incorrectly configured to be in another AS.K values .4. Any Time.Neighbors must be in the same subnet . so they are not being advertised. Why are the interfaces missing? A. the following must match: .5/32. we see that R4 is configured for EIGRP AS 2.actualtests. D.4.0.0 network is displayed.0." .4. C. 10.4. Answer: B Explanation: For an EIGRP neighbor to form. The loopback addresses haven't been advertised.4.AS numbers . so only the 10. The interfaces are shutdown. when it should be AS 1. Automatic summarization is enabled.6/32 are not appearing in the routing table of R5.Authentication method and key strings Here.4/32. "Pass Any Exam.Cisco 200-120 Exam The loopback interfaces on R4 with the IP addresses of 10. and the network command is missing on R4.4.www.com 265 . and 10. so it does not peer with R5.

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

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

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com 269 .www." . Any Time.Cisco 200-120 Exam "Pass Any Exam.actualtests.

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

C.55 the preferred path is via Serial 1/3.5. "Pass Any Exam. Answer: A Explanation: Using the “show ip int brief command” on R5 we can see the IP addresses assigned to this router. B. using the “show ip route” command on R1 we can see that to reach 10. D.Cisco 200-120 Exam Which path does traffic take from R1 to R5? A.5.5. The traffic is equally load-balanced over R2 and R3.com 271 ." . which we see from the diagram is the link to R2.5 and 10.actualtests. Any Time.5.Then. The traffic goes through R2. The traffic goes through R3.www. The traffic is unequally load-balanced over R2 and R3.

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

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

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

they are both using e0/0.The IP addresses are in the 192.16." . Any Time.actualtests.168.0 network: "Pass Any Exam.www.com 277 .Cisco 200-120 Exam Answer: C Explanation: The link from R1 to R6 is shown below: As you cansee.

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

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

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C.55.Cisco 200-120 Exam Study the following output taken on R1: R1# Ping 10. Answer: C Explanation: R5 does not have a route to the 10.www. The network statement is missing on R5. D.5.5.5.1. The IP address that is configured on the Lo1 interface on R5 is incorrect. B.1.1 Type escape sequence to abort.1 ……. we see that the 10. which is the loopback0 IP address of R1.55 source 10.1.com 283 . Success rate is 0 percent (0/5) Why are the pings failing? A.1 network. 100-byte ICMP Echos to 10. "Pass Any Exam.actualtests. The network statement is missing on R1.5.1.1. timeout is 2 seconds: Packet sent with a source address of 10. Any Time.1. Sending 5. The loopback interface is shut down on R5." .1.1 network statement is missing on R1.1.When looking at the EIGRP configuration on R1.

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

Any Time. is operating normally. The DCE device creates and sends the report to the DTE devices. (Not all acronyms are used. D. This status is rarely seen so it is ignored in some books.com 285 . 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). 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. E. Answer: D Explanation: The PVC STATUS displays the status of the PVC. The PVC is not configured on the local switch. The PVC is configured correctly on the local switch.www.Cisco 200-120 Exam C. but there is a problem on the remote end of the PVC. QUESTION NO: 290 DRAG DROP Drag the Frame Relay acronym on the left to match its definition on the right.) Answer: "Pass Any Exam.actualtests." . The PVC is configured correctly. and is waiting for interesting traffic to trigger a call to the remote router.

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

DLCI 16: 192.168. DLCI 16: 192.1 /24 DLCI 17: 192.2 /24 DLCI 28: 192.10.168. with PAP as the fallback method.1 /24 DLCI 17: 192.1 /24 DLCI 99: 192. QUESTION NO: 292 Which command is used to enable CHAP authentication.168.actualtests.1 /24 DLCI 99: 192.168.1 /24 DLCI 99: 192.4 /24 Answer: C Explanation: With point to point PVC’s.Similarly.1 /24 C. Router(config-if)# ppp authentication chap fallback ppp B. Any Time. the R3-R1 connection would also be in the same subnet.10.www.10.168.1 /24 DLCI 17: 192.1 /24 DLCI 28: 192. Router(config-if)# ppp authentication chap pap C. "Pass Any Exam.2 /24 DLCI 28: 192.168.10.2 /24 DLCI 99: 192.com 287 .3 /24 DLCI 28: 192.Cisco 200-120 Exam point PVCs? A. The R2-R1 connection (DLCI 16 to 99) would have eachrouter within the same subnet.11." . 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.11.168.10.168.168.168.168.12.168.10.168.168.13.1 /24 DLCI 17: 192.2 /24 D. Router(config-if)# authentication ppp chap fallback ppp D. but it must be in a differentone than the R2-R1 connection.10.10.10.168.3 /24 B. DLCI 16: 192.168.10. on a serial interface? A. each connection needs to be in a separate subnet.10. DLCI 16: 192.11.

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

so the PVC supports broadcast. "Pass Any Exam.121. E. as it can be used to connect networks.8 102 broadcast was entered on the router. It is a data link layer protocol used for WAN connections. WAP C.actualtests. This command should be executed from the global configuration mode.8 is the local router port used to forward data. such as RIP updates. Ethernet Answer: A. to be forwarded across the PVC. D. typically when used with VPN technology. DSL is also considered a WAN connection. Which of the following statements is true concerning this command? A. allowing the routing protocol updates that use the broadcast update mechanism to be forwarded across itself. B. L2TPv3 E.) A. The broadcast option allows packets.Cisco 200-120 Exam QUESTION NO: 295 The command frame-relay map ip 10. C." .16. DSL D. PPP was originally emerged as an encapsulation protocol for transporting IP traffic between two peers. Any Time. Answer: E Explanation: Broadcast is added to the configurations of the frame relay.C Explanation: The Point-to-Point Protocol (PPP) provides a standard method for transporting multi-protocol datagrams over point-to-point links. This command is required for all Frame Relay configurations. PPP B. QUESTION NO: 296 Which two options are valid WAN connectivity methods? (Choose two.com 289 .121.16. The IP address 10.www. 102 is the remote DLCI that will receive the information.

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

16.255. and Q933a. what is the most likely cause of the problem? A.www. incorrect map statement D.2 255. Both routers are running IOS version 12.100.255." . But we guess there is a typo in the output. The “frame-relay map ip” statement is correct thus none of the four answers above is correct. QUESTION NO: 300 Refer to the exhibit. HDLC is a WAN protocol same as Frame-Relay and PPP so it is not a Frame Relay encapsulation type.Cisco 200-120 Exam Note: Three LMI options are supported by Cisco routers are ansi.com 291 . They represent the ANSI Annex D. Cisco. incorrect IP address Answer: C Explanation: First we have to say this is an unclear question and it is wrong.0 command should be “ip address 172.0. That makes answer C correct. After reviewing the command output and graphic. and ITU Q933-A (Annex A) LMI types. Any Time. Cisco. "Pass Any Exam. QUESTION NO: 299 RouterA is unable to reach RouterB. incorrect LMI configuration C. Maybe the “ip address 172.0.16.1 255.0.0. respectively.100.actualtests. incorrect bandwidth configuration B.

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

and increased scalability as s single WAN link can be used to connect to all locations in a VPN. broadband incompatibility D.255. 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.255.255.The default.255.E Explanation: IPsec offer a number of advantages over point to point WAN links.252 Main(config-if)# encapsulation ppp Main(config-if)# no shut C.The other option is PPP which is standards based and supported by all vendors. better throughput C. reduced cost B.1.These include reduced cost.255. where as a point to point link would need to be provisioned to each location.1 255.com 293 .1 255.255.www." . particularly when multiple locations are involved. 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.252 Main(config-if)# encapsulation frame-relay Main(config-if)# authentication chap Main(config-if)# no shut D.actualtests. Main(config)# interface serial 0/0 Main(config-if)#ip address 172. Any Time.Cisco 200-120 Exam Main(config-if)# no shut B.1. HDLC. increased security E.1 255.16. "Pass Any Exam.1. Main(config)# interface serial 0/0 Main(config-if)# ip address 172. increased security since all traffic is encrypted.16. scalability F.16. reduced latency Answer: A. is Cisco proprietary and worksonly with other Cisco routers.) A.D.

4.. the number of BECN packets that are received by the router B. the IP address of the local router Answer: B.4." .4.4dlci 401(0x191. the value of the local DLCI C.0x6410). broadcast. CISCO. broadcast. dynamic.0x6410). the status of the PVC that is configured on the router E.0x6430).com 294 . active QUESTION NO: 304 Users have been complaining that their Frame Relay connection to the corporate site is very slow.www.status defined.4. static.. active Serial0/0 (up): ip 10. dynamic. "Pass Any Exam.) A.1dlci 401(0x191.status defined.actualtests. The network administrator suspects that the link is overloaded.3dlci 403(0x193. Any Time.4. the number of FECN packets that are received by the router D.status defined.D Explanation: Sample “show frame-relay map” output: R1#sh frame map Serial0/0 (up): ip 10. active Serial0/0 (up): ip 10.Cisco 200-120 Exam QUESTION NO: 303 Which two statistics appear in show frame-relay map output? (Choose two.4.

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

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

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

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

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

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.. status defined. dynamic. show frame-relay map D.Cisco 200-120 Exam QUESTION NO: 313 What command is used to verify the DLCI destination address in a Frame Relay static configuration? A. active Serial0/0 (up): ip 10.1dlci 401(0x191. static.com 300 .0x6410). broadcast. show frame-relay pvc B. active QUESTION NO: 314 What is the purpose of Inverse ARP? A. show frame relay end-to-end Answer: C Explanation: Sample “show frame-relay map” output: R1#sh frame map Serial0/0 (up): ip 10. active Serial0/0 (up): ip 10.4dlci 401(0x191.4. dynamic.3dlci 403(0x193.4. status defined..4.actualtests. status defined.0x6410). to map a known MAC address to an IP address D. to map a known IP address to a MAC address B.www.4. to map a known DLCI to a MAC address C.4." . CISCO. to map a known DLCI to an IP address E. Any Time. broadcast.4.0x6430). to map a known IP address to a SPID F. show frame-relay lmi C.

254.168.22. .Cisco 200-120 Exam (Inverse ARP). This access list can contain no more than three statements that meet these requirements.65. including both dynamic and static mapping entries.168.actualtests. 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.com 301 . .1 . . You have been tasked to create and apply a numbered access list to a single outbound interface.host C 192.4 .201." . The router builds and maintains this address-toDLCI mapping table.3 .www. 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.201.168.168. All hosts in the Core and on local LAN should be able to access the Public Web Server.18.237.132. Other types of access from host B to theFinance Web Server should be blocked. "Pass Any Exam.All passwords have been temporarily set to “cisco”.host A 192.The Public Web Server in the Server LAN has been assigned an addressof 172.201. .17. The requirements are: - Host B should be able to use a web browser (HTTP) to access the Finance Web Server.The Finance Web Server has been assigned an address of 172.22.host D 192. which contains all resolved Inverse ARP requests. Access to the router CLI can be gained by clicking on the appropriate host.The computers in the Hosts LAN have been assigned addresses of 192.237. to resolve a next hop network protocol (IP) address to a local DLCI value. All access from hosts in the Core or local LAN to the Finance Web Server should be blocked.168.201. .2 .1 – 192. QUESTION NO: 315 CORRECT TEXT A corporation wants to add security to its network.201.201.The Core connection uses an IP address of 198. Any Time.18. defined by RFC 1293.host B 192.168.

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

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

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.www.To see which interface this is.actualtests. Any Time.com 304 . so we will place our "Pass Any Exam. use the “show ip interface brief” command: From this." . we know that the servers are located on the fa0/1 interface.Cisco 200-120 Exam Answer: Please check the below explanation for all details.

22.109.com 305 .22.109.109. If your configuration is correct then you can access it. blocking all other access to the finance web server: Corp1(config)#access-list 100 deny ip any host 172.17 to check if you are allowed to access Finance Web Server or not.22. Click on other hosts (A. so our first line is this: Corp1(config)#access-list 100 permit tcp host 192.18any Finally. To verify.109.2 host 172. Then.actualtests.109.22.125.2to theFinance Web Server 172. save the configuration Corp1(config-if)#end Corp1#copy running-config startup-config "Pass Any Exam. Any Time.22.17 via HTTP(port 80). just click on host Bto open its web browser.www. repeat to make sure they can reach the public server at 172.109.168125.18) Corp1(config)#access-list 100 permit ip host 172.17eq 80 Then.22.168. Finally. Cand D) and check to make sure you can’t access Finance Web Server from these hosts.Cisco 200-120 Exam numbered access list here in the outbound direction. 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). In the address box type http://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." .17 Our last instruction is to allow allhosts in the Core and onthe local LANaccesstothe PublicWeb Server (172.22. Corp1#configure terminal Our access-list needs to allow host B – 192.18.109.

90C5 Answer: A Explanation: "Pass Any Exam." . switch 00E0.F726. switch 00E0. switch-mdf-c1(config)#hostname switch-mdf1 B. 8 Answer: C Explanation: QUESTION NO: 317 Which command can you use to set the hostname on a switch? A. Mixed Questions QUESTION NO: 316 If a router has four interfaces and each interface is connected to four switches.3DC6 D. 1 B. switch-mdf-c1>hostname switch-mdf1 C.0BC0. switch 0040.C182 B.F90B. 4 D.com 306 .9A1A. switch-mdf-c1(config-if)#hostname switch-mdf1 Answer: A Explanation: QUESTION NO: 318 If the primary root bridge experiences a power loss.www. 2 C. which switch takes over? A.Cisco 200-120 Exam Topic 9. how many broadcast domains are present on the router? A.actualtests. switch 0004.6BE3 C. switch-mdf-c1#hostname switch-mdf1 D. Any Time.

" . It specifies IPv6 as the encapsulation protocol. Any Time. It specifies IPv4 as the encapsulation protocol. Answer: A.) A. E.5/32? A. 172.1.actualtests. It specifies that the tunnel is a Teredo tunnel.www. 172. Scan Timer Answer: A Explanation: QUESTION NO: 320 Which two statements about the tunnel mode ipv6ip command are true? (Choose two. 172.1.16.16. D.com 307 . Hop Count E.1.Cisco 200-120 Exam QUESTION NO: 319 Which IPv6 header field is equivalent to the TTL? A. TTD D.0/24 D.1.0/26 B. It enables the transmission of IPv6 packets within the configured tunnel. B. It specifies IPv6 as the transport protocol.B Explanation: QUESTION NO: 321 What is the correct routing match to reach 172. C.16. Flow Label C.0/25 C. the default route Answer: A Explanation: "Pass Any Exam.16. Hop Limit B.

255. RFC 1631 D.0. router(config)#ip route 192.0 GigabitEthernet0/1 D.0.168.240. router(config)#ip route 192. RFC 1918 Answer: A Explanation: "Pass Any Exam.168.0 255.255.168.0 GigabitEthernet0/1 B. router(config)#ip route 0.0 GigabitEthernet0/1 C.www.0.0 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.0 255.0. Any Time. router(config)#ip route 0." . NTP C. NAT B.0/20 to a specific interface? A. POST C.255.actualtests.255.0 255. mini-IOS D.0.0 0.0. bootstrap B. ROMMON mode Answer: A Explanation: QUESTION NO: 323 Which command can you enter to route all traffic that is destined for 192.0.com 308 .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.0.255.

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

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

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

" .0.255. B.0 255. It can cause too many addresses to be assigned to the same interface.255 GigabitEthernet0/1 C.) A.0 GigabitEthernet0/1 B. It prevents the correct translation of IP addresses on the inside network.B Explanation: QUESTION NO: 336 What is the danger of the permit any entry in a NAT access list? A. It can disable the overload command.0. C. inside private D. Answer: A Explanation: "Pass Any Exam. router(config)#ip route 0.255. inside local B. Any Time. D. external global F.0.actualtests. external local Answer: A. router(config-router)#default-information originate D.Cisco 200-120 Exam QUESTION NO: 334 Which command can you enter to set the default route for all traffic to an interface? A.com 312 . 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. It can lead to overloaded resources on the router. router(config)#ip route 0.www. outside private E.0.0 0. inside global C.0.0.

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

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

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

It is best used for small-scale deployments. D. Router(config)# boot system tftp c7300-js-mz. It uses consistent route determination. Router(config)# boot system flash c4500-p-mz. Routers can use update messages to reroute when links fail. Answer: A. Routing is disrupted when links fail. Router(config)#boot bootldr bootflash:c4500-jk9s-mz.www. Router(config)#boot flash:c180x-adventerprisek9-mz-124-6T.) A.bin D.122-33.124-24.C Explanation: QUESTION NO: 348 Which type of address is the public IP address of a NAT device? "Pass Any Exam. It is best used for large-scale deployments.bin E.actualtests.bin B.121-20.B. It requires more resources than other routing methods.com 316 .bin Answer: A. Any Time. 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. Router(config)#username jdone privilege 1 password 7 PASSWORD1 C.bin C. C." . Router> boot flash:c180x-adventerprisek9-mz-124-6T. B.C Explanation: QUESTION NO: 347 Which three statements about static routing are true? (Choose three.bin F.122-23f. Router(config)#username jdone privilege 15 password 0 08314D5D1A48 D.SB8a. E.) A.B.Cisco 200-120 Exam B.T4. F. Router(config)#boot system rom c7301-advipservicesk9-mz.

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

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

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

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

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

. You have been tasked to create and apply a numbered access list to a single outbound interface. They require a WiMax tower within 30 miles of the user location. Other types of access from host C to the Finance Web Server should be blocked. interface ethernet 0/0 F.com 322 .C Explanation: QUESTION NO: 364 CORRECT TEXT A corporation wants to add security to its network. This access list can contain no more than three statements that meet these requirements. show ip flow export B. All access from hosts in the Core or local LAN to the Finance Web Server should be blocked. ip flow-export destination Answer: A. They are usually faster than cable and DSL connections.actualtests. Their upload speed is about 10 percent of their download speed. All hosts in the Core and on local LAN should be able to access the Public Web Server.All passwords have been temporarily set to “cisco”. Access to the router CLI can be gained by clicking on the appropriate host. Answer: A. They are frequently used by rural users without access to other high-speed connections.B. "Pass Any Exam.www. F. show ip cache flow C.B Explanation: QUESTION NO: 363 What are three characteristics of satellite Internet connections? (Choose three. Any Time.The Core connection uses an IP address of 198. D.65.) A.18. E. C. ip flow ingress D." . They use radio waves to communicate with cellular phone towers. B.Cisco 200-120 Exam A.209. . They are usually at least 10 times faster than analog modem connections. ip flow egress E. The requirements are: - Host C should be able to use a web browser (HTTP) to access the Finance Web Server.

com 323 .1 – 192.78.actualtests.78.78.78.146.18. host A 192.22.168.3 host D 192.168.2 host C 192.22.168.- Cisco 200-120 Exam The computers in the Hosts LAN have been assigned addresses of 192.www.254.168. The Public Web Server in the Server LAN has been assigned an address of 172.78. "Pass Any Exam.1 host B 192. Any Time.146." .78.17.168.4 The Finance Web Server has been assigned an address of 172.168.

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

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

109.17 Our last instruction is to allow allhosts in the Core and onthe local LANaccesstothe PublicWeb Server (172.22. 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.3to theFinance Web Server 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).22.17 via HTTP(port 80).109. In the address box type http://172.168. we know that the servers are located on the fa0/1 interface.168125.125.www.3 host 172." . use the “show ip int brief” command: From this. To verify. blocking all other access to the finance web server: Corp1(config)#access-list 100 deny ip any host 172.18any Finally.17eq 80 Then.17 to check if you are allowed to access Finance Web Server or not.actualtests. so our first line is this: Corp1(config)#access-list 100 permit tcp host 192. If your configuration is correct then you can access it.com 326 . so we will place our numbered access list here in the outbound direction.109.109.18) Corp1(config)#access-list 100 permit ip host 172. Corp1#configure terminal Our access-list needs to allow host C – 192.22. "Pass Any Exam. Any Time.22.109.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.22. just click on host Cto open its web browser.To see which interface this is.22.109.

22. Any Time.www.Cisco 200-120 Exam Click on other hosts (A." .109. save the configuration Corp1(config-if)#end Corp1#copy running-config startup-config "Pass Any Exam. Finally. repeat to make sure they can reach the public server at 172.com 327 .actualtests. B and D) and check to make sure you can’t access Finance Web Server from these hosts.18. Then.

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