QUESTION 41
You have recently added LDP-signaled VPLS to your network. The VPLS connections are established and you have been asked to verify that the forwarding plane is working properly. Which three commands would you use? (Choose three.)
A. ping mpls Idp <fec>
B. show vpls connections
C. traceroute mpls Idp <fec>
D. show vpls mac-table
E. show Idp statistics
Answer: ACD
QUESTION 42
You have created a new IS-IS adjacency between identical routers over two STM-4 circuits. After enabling no-keepalives on the interfaces, they come up and you are able to ping between the routers. However, the IS-IS adjacency still will not establish.
Which step will determine the cause of the problem?
A. Disable no-keepalives from the interfaces and issue a show isis adjacency command.
B. Enable family iso on all the SONET interfaces, commit, and test the circuits.
C. Disable cisco-hdlc encapsulation, enable ppp encapsulation, commit, and test the circuits.
D. Disable no-keepalives from the interfaces and issue a show interfaces extensive command for each
of the SONET interfaces.
Answer: D
QUESTION 43
You are asked to retain several routes from an external BGP neighbor in the routing table on your local router, but you are not allowed to forward traffic to these destinations. You have configured a forwarding table firewall filter to block these routes, and applied it under the (edit forwarding- options] hierarchy, but the routes are still showing up in the forwarding table. What is required to achieve this task?
A. Configure an EBGP import policy on your local router to block the routes.
B. Have the EBGP neighbor configure an export policy to block the routes.
C. Configure an export policy for the forwarding table to block the routes.
D. Use the no-install configuration statement within the EBGP neighbor group on your local router.
Answer: C
QUESTION 44
You have configured bidirectional LSPs between R1 and R3. You notice that the LSPs are not coming up.
Referring to the exhibit, which statement is correct?
A. You must disable CSPF for the LSPs.
B. You must enable CSPF for the LSPs.
C. You must ensure type 5 LSAs are allowed in area 1.
D. You must ensure OSPF traffic engineering is configured.
Answer: A
QUESTION 45
Your currently configured regular expression does not match the AS path shown below:
2135 55 55 55 55 3796
Which three regular expressions would match this path? (Choose three.)
A. “.”2135”
B. “2135.*”
C. “* 55(1,3)*”
D. “2135 55(5)3796”
E. “2135 55(1,2)3796”
Answer: BCE
QUESTION 46
PE-1 is not sending any routes to the CE router in the Cust routing instance.
What is the reason?
A. There is a mismatch in the target community and the route distinguisher.
B. The vrf-import policy is only accepting direct routes.
C. The asoverride parameter is causing an AS loop on the CE device.
D. The vrf-export policy must be explicitly defined.
Answer: B
QUESTION 47
R1 and R2 are IS-IS Level 1 routers, but are not forming an adjacency.
Which two reasons would account for this happening? (Choose two.)
A. The remote router is configured for both IPv4 and IPv6.
B. The remote router does not have family iso enabled on its interface,
C. The remote router does not have family clns enabled on its interface.
D. The remote router is not configured to participate in the same Level 1 area
Answer: BD
QUESTION 48
An OSPF neighbor between routers R1 and R2 is stuck in loading state on R2. What are two causes? (Choose two.)
A. OSPF is not enabled on the interfaces.
B. A firewall filter is blocking OSPF hellos on both sides.
C. The R1 router has received a corrupted link-state request packet.
D. The interface MTU is mismatched between the routers.
Answer: CD
QUESTION 49
One of your router’s OSPF adjacencies is down.
What are three reasons for this adjacency state change? (Choose Three)
A. A filter has just been configured on one of the OSPF routers.
B. The OSPF hello value is the same on both routers.
C. The controlling BFD session state has gone down.
D. The authentication key on both routers matches.
E. One of the physical interfaces has gone down.
Answer: ACE
QUESTION 50
You have configured an IS-IS adjacency between routers R1 and R2. However, the adjacency is not coming up. Referring to the exhibit, what appears to be the problem?
A. The R2 interface is down.
B. The ge-1/1/2.0 interface has IS-IS level 2 disabled.
C. The ge-1/1/2.0 interface does not have family iso configured.
D. The ge-1/1/2.0 interface has IS-IS level 1 disabled.
Answer: C
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