6_CCNA Cisco Discovery 3 Review

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13 Refer to the exhibit. As part of an OSPF network, R1 and R2 are trying to become adjacent neighbors. Although it appears that the two systems are communicating, neither of the routing tables include OSPF routes received from its neighbor. What could be responsible for this situation?
The interval timer into routers do not match.

14 Refer to the exhibit. What is the purpose of the value 128 is displayed in bold?
It is the OSPF cost metric.

15 Refer to the exhibit. What is the purpose of the set of commands added on router B?
provides a stable OSPF router ID on router B

16 Refer to the exhibit. The command ip route 255,255,255,252 s0/0/0 enters the router. Why network does not appear in the routing table, plus network?
The opinions and router as two different networks.

17 What is the main difference between link-state protocols and distance vector protocols with regard to route calculation?
Distance vector protocols take existing routes from their neighbors and add to them. Link state protocols independently calculate full routes.

18 What range of networks are advertised in the OSPF updates by the command Router1 (config-router) # area network 0? through

19 Refer to the exhibit. When establishing adjacency relationships, which IP address using a router to send hello packets to router B?

20.Refiérase exposure. Router to be elected the DR and that will become the BDR?
R1 will be DR and R3 will be BDR.

21 When compared with a distance vector routing protocol, which is a benefit of hierarchical design approach that is used in large OSPF networks?
isolation of network instability

22 What are two advantages of using a link state routing protocol instead of a routing protocol distance vector? (Choose two.)
Routers have direct knowledge of all links in the network and how they are connected.
After the initial LSA flooding, routers generally require less bandwidth to communicate changes in a topology.

23 If a network has converged, what is true about the relationship between state database held by each router in the same OSPF area?

24 Refer to the exhibit. RTRC recently configured and is not sending the proper OSPF routes to RTRB, as shown in the routing table RTRB. Based on RTRC settings, most likely the problem?
The OSPF routing configuration on RTRC has a network statement missing or incorrect.

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