Refer to the exhibit. After troubleshooting an OSPF adjacency issue, routers 1, 2, and 3 have formed OSPF neighbor relationships. Which statement about the configuration is true?
Question 6 of 111
Correct Answer: C
Router 2 will use Router 1 as the next hop for the network 192.168.0.0/24. According to the OSPF path selection, the preference order is O > O IA > N1 > E1 > N2 > E2. In this scenario, Router 2 is connected to Area 0, Area 1, and Area 3, and it will prefer routes learned from OSPF NSSA Type 7 (N2) LSAs over Type 5 (E2) LSAs if both are available. Since Router 1 is injecting the 192.168.0.0/24 network as a Type 7 LSA in the NSSA Area 1, Router 2 will prefer this optimal path over any Type 5 LSA route.
Question 7 of 111
Which statement about enabling segment routing for IGPs is true?
Correct Answer: B
Segment routing must first be enabled globally and then under the routing process. This ensures that segment routing capabilities are established at the global level before they are fine-tuned or applied within individual routing processes.
Question 8 of 111
Refer to the exhibit. Router 1 is a core ABR in a Cisco Unified MPLS environment. All of the router 1 BGP peers are established, but traffic between customers is failing. Which BGP configuration must be added to the configuration?
Correct Answer: C
In a Cisco Unified MPLS environment, when traffic between customers is failing despite all BGP peers being established, it is crucial to ensure that the BGP configuration includes the capability to send labels. MPLS relies on label switching to forward packets through the network, and BGP needs to exchange these MPLS labels to route the traffic appropriately. Configuring BGP with send labels will allow the router to distribute and utilize MPLS labels, ensuring proper traffic flow between customers.
Question 9 of 111
Refer to the exhibit. R1 is directly connected to R2 and R3. R1 is in BGP AS 123, R2 is in BGP AS 2, and R3 is in BGP AS 3. Assume that there is no connectivity issue between R1, R2 and R1, R3. Which result between BGP peers R1, R2 and R1, R3 is true?
Correct Answer: D
R1 is configured with a peer-group named TEST and has neighbored R2 and R3 using this group. However, R2 is in AS 2 and R3 is in AS 3. The alternate-as configuration allows R1 to accept R3's BGP session even though it is in a different AS. However, R2 does not have an alternate AS configuration, meaning it requires a direct AS match with R1's AS 123 to establish a session. Therefore, the BGP session will only come up between R1 and R2, but not between R1 and R3.
Question 10 of 111
Which two conditions must be met before separate ISPs can provide interdomain multicast routing? (Choose two.)
Correct Answer: A, E
Each ISP must configure MSDP to connect its individual multicast administrative domain to the domains at other ISPs, ensuring multicast source information can be shared between the ISPs. Additionally, each ISP must support intradomain multicast routing to ensure that multicast traffic can be routed within their own networks before it can be shared with other ISPs. These two conditions ensure seamless interdomain multicast routing.