Question 1

After changing the IP address on an IOS XR router, an engineer cannot ping the new address Which step did the engineer forget to complete?

Options :

A : commit the configuration

B : roll back the configuration

C : save the running configuration

D : merge the configuration

Answer: A

Question 2

Refer to the exhibits.

All links inside the network are configured at a default cost of one inside the fully converged OSPF domain. Given the configuration from XR1, which interface does traffic from XR1 that is destined to the loopback interface of XR6 select for the exiting interface?

Options :

A : Interface GigabitElhemet 0/0. The tie breaker of the node index priority is lower and trumps the path cost.

B : Interface GigabitEthernet 0/1. The tie breaker of the path cost being lower. The node index priority does not impact this selection process.

C : Interface GigabitEthernet 0/1. The tie breaker of the node index priority is lower and trumps the path cost.

D : Interface GigabitEthernet 0/0. The tier breaker of the path cost being lower. The node index priority does not impact this selection process.

Answer: A

Question 3

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

Question 4

Refer to the exhibit.

Refer to the exhibit. A network engineer is configuring router R3 to handle multicast streams, but Host-2 cannot send subscriptions messages to the IPTV source. Which configuration must the engineer apply to router R3 so it passes the IPTV stream to Host-2?

Options :

A :

B :

C :

D :

Answer: D

Question 5

Refer to the exhibit.

The four routers in this network have formed adjacencies. Router R2 is an IS-IS level 1-2 router that connects to other areas, and the attach bit is set in the R2 level 1 LSP advertisements to R1. According to the network design, R2 should push level 2 routes from its routing table to the R1 routing table. However, R1 installed a default route in its routing table. Which action resolves this problem?

Options :

A :

Use The is-type level-1-2 backdoor command lo unset the attach bit on R1 and use a prefix List to filter prefixes from R2

B : Set the attach bit on R1and use a prefix list to filter prefixes from R2.

C :

Use the is-type level-1-2 backdoor command to unset the attach bit on R2 and configure a distribute-list to redistribute prefixes to R1

D : Configure R2 as a level 1 router and use a prefix list to filter prefixes to R1.

Answer: C

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