Question 1

Refer to the exhibit. A network engineer must correct the security policy on the EDGE_R router, which is connected to two Tier 1 ISPs. After another engineer added ip as-path access-list 11 permit 11 to EDGE_R, some routes from AS 11 and AS 4832 started to appear in the routing information base (RIB). Traffic control via Community options is disabled on both ISPs. How should the network engineer update the router configuration on EDGE_R so that only routes for AS 11 are permitted?

Options :

A : Configure ip as-path prefix-list 11 permit _11$.

B : Configure ip as-path access-list 11 permit _11_.

C : Configure ip as-path distribution-list 11 deny A[0-9]+S.

D : Configure ip as-path access-list 11 deny 4832$.

Answer: D

Question 2

A network consultant is troubleshooting IS-IS instances to identify why a routing domains is having communication problems between the two instances. Which description of the possible cause of issues in the routing domain is true?

Options :

A : The same interface cannot be advertised in two different IS-IS instances

B : The IS-IS ''ISP'' and ''ISP2'' instances are unrelated and unable to intercommunicate

C : The configured IS-IS NSEL value is not allowing the routing systems to establish a neighborship

D : The interface mode ip router is-is command was not included in the script

Answer: A

Question 3

What are three requirements for a static IPv6-in-IPv4 tunnel? (Choose three.)

Options :

A : A static IPv6 address must be configured.

B : A dynamic IPv6 address must be configured.

C : Cisco Express Forwarding must be enabled.

D : Each tunnel endpoint must support IPv4 and IPv6.

E : A static IPv4 address must be configured.

F : A dynamic IPv4 address must be configured.

Answer: A,D

Question 4

What is the function of BGP confederations?

Options :

A : They require routers to use private AS numbers.

B : They eliminate the need for a fully-meshed internal BGP design.

C : They enable a single device to distribute a common configuration to its peers

D : They assign an external BGP router to serve as the route reflector

Answer: B

Question 5

Refer to the exhibit.

An MPLS core network has connectivity issues R4 has failed. It impacts traffic loss between R1 and R8. Customers report no access to their file servers, which delays their transformation work. Which quick action resolves the issue until R4 recovers?

Options :

A : Implement Link and Node protection on routers R2 and R7.

B : Disable traffic engineering so that traffic prefers the IGP path

C : Enable MPLS TE fast reroute on router R1 and Link and Node protection on router R2.

D : Configure IBGP full mesh for faster convergence.

Answer: C

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