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Pass Cisco 200-120 Exam With Passleader Cisco 200-120 Exam Free Study Materials (71-80)

Which characteristics are representative of a link-state routing protocol? (Choose three.)

A.    provides common view of entire topology
B.    exchanges routing tables with neighbors
C.    calculates shortest path
D.    utilizes event-triggered updates
E.    utilizes frequent periodic updates

Answer: ACD
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.
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 -> . Unlike Distance vector routing protocol (which utilizes frequent periodic updates), link-state routing protocol utilizes event-triggered updates (only sends update when a change occurs) ->

Which command would you configure globally on a Cisco router that would allow you to view directly connected Cisco devices?

A.    enable cdp
B.    cdp enable
C.    cdp run
D.    run cdp

Answer: C
CDP is enabled on Cisco routers by default. If you prefer not to use the CDP capability, disable it with the no cdp run command. In order to reenable CDP, use the cdp run command in global configuration mode. The “cdp enable” command is an interface command, not global.

Which two locations can be configured as a source for the IOS image in the boot system command? (Choose two.)

A.    RAM
C.    flash memory
D.    HTTP server
E.    TFTP server
F.    Telnet server

Answer: CE
The following locations can be configured as a source for the IOS image:
1. + Flash (the default location)
2. + TFTP server
3. + ROM (used if no other source is found)

Which two statements describe the process identifier that is used in the command to configure OSPF on a router? (Choose two.)
Router(config)# router ospf 1

A.    All OSPF routers in an area must have the same process ID
B.    Only one process number can be used on the same router.
C.    Different process identifiers can be used to run multiple OSPF processes
D.    The process number can be any number from 1 to 65,535.
E.    Hello packets are sent to each neighbor to determine the processor identifier.

Answer: CD
Multiple OSPF processes can be configured on a router using multiple process ID’s.
The valid process ID’s are shown below:
Edge-B(config)#router ospf ?
<1-65535> Process ID

Which three elements must be used when you configure a router interface for VLAN trunking? (Choose three.)

A.    one physical interface for each subinterface
B.    one IP network or subnetwork for each subinterface
C.    a management domain for each subinterface
D.    subinterface encapsulation identifiers that match VLAN tags
E.    one subinterface per VLAN
F.    subinterface numbering that matches VLAN tags

Answer: BDE
This scenario is commonly called a router on a stick. A short, well written article on this operation can be found here:



Which commands are required to properly configure a router to run OSPF and to add network to OSPF area 0? (Choose two.)

A.    Router(config)# router ospf 0
B.    Router(config)# router ospf 1
C.    Router(config)# router ospf area 0
D.    Router(config-router)# network 0
E.    Router(config-router)# network area 0
F.    Router(config-router)# network area 0

Answer: BE
In the router ospf command, the ranges from 1 to 65535 so o is an invalid number -> but To configure OSPF, we need a wildcard in the “network” statement, not a subnet mask. We also need to assgin an area to this process -> .

A router receives information about network from multiple sources. What will the router consider the most reliable information about the path to that network?

A.    a directly connected interface with an address of
B.    a static route to network
C.    a RIP update for network
D.    an OSPF update for network
E.    a default route with a next hop address of
F.    a static route to network with a local serial interface configured as the next hop

Answer: A
When there is more than one way to reach a destination, it will choose the best one based on a couple of things. First, it will choose the route that has the longest match; meaning the most specific route. So, in this case the /24 routes will be chosen over the /16 routes. Next, from all the /24 routes it will choose the one with the lowest administrative distance. Directly connected routes have an AD of 1 so this will be the route chosen.

What is the default maximum number of equal-cost paths that can be placed into the routing table of a Cisco OSPF router?

A.    2
B.    4
C.    16
D.    unlimited

Answer: B
maximum-paths (OSPF)
To control the maximum number of parallel routes that Open Shortest Path First (OSPF) can support, use the maximum-paths command.
Syntax Description
Maximum number of parallel routes that OSPF can install in a routing table. The range is from 1 to 16 routes.
Command Default
8 paths

Which command shows your active Telnet connections?

A.    show cdp neigbors
B.    show session
C.    show users
D.    show vty logins

Answer: B
The “show users” shows telnet/ssh connections to your router while “show sessions” shows telnet/ssh connections from your router (to other devices). The question asks about “your active Telnet connections”, meaning connections from your router so the answer should be A.

Which type of EIGRP route entry describes a feasible successor?

A.    a backup route, stored in the routing table
B.    a primary route, stored in the routing table
C.    a backup route, stored in the topology table
D.    a primary route, stored in the topology table

Answer: C
EIGRP uses the Neighbor Table to list adjacent routers. The Topology Table list all the learned routers to destination whilst the Routing Table contains the best route to a destination, which is known as the Successor. The Feasible Successor is a backup route to a destination which is kept in the Topology Table.

Pass Cisco 200-120 Exam With Passleader Cisco 200-120 Exam Free Study Materials