Nokia 4A0-C03 - Nokia NRS II Composite: IS-IS version Exam
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Total 61 questions
Question #1 (Topic: Exam A)
Consider the exhibit. Static routing is to be used in a network between a corporate head office and a branch office. The head office has many connected subnetworks, whereas the branch office has one subnetwork and a single connection to the head office. Which of the following is the most likely configuration on the head office and branch office routers?
A. The head office has a default route and the branch office has a specific static route.
B. The head office and the branch offices both have specific static routes.
C. The head office and the branch office both have default routes.
D. The head office has a specific static route and the branch office has a default route.
Answer: D
Question #2 (Topic: Exam A)
A routing domain is using a single-area link-state routing protocol. Which of the following is NOT information that a router can share with other routers in the domain using protocol-specific messages?
A. The IP prefixes of subnets directly attached to the router.
B. IP prefixes known by the router because it is running an additional routing protocol.
C. A copy of the local routing table.
D. The local router ID and the router IDs of neighboring routers.
Answer: C
Question #3 (Topic: Exam A)
Which of the following statements about the databases used by a link-state routing protocol in a single-area routing domain is FALSE?
A. The link-state database has the local topology and IP reachability information advertised by all the routers.
B. The adjacency database contains information about all the links interconnecting the domain's routers.
C. The forwarding database contains the optimum next hop for each known prefix.
D. The link-state database is the same for all routers.
Answer: B
Question #4 (Topic: Exam A)
A router running a link-state routing protocol detects that one of its neighbors is no longer connected to it. The router generates a new link-state advertisement to inform other routers of the topology change. Which of the following is NOT an action that is triggered by this event?
A. If a router receives the new link-state advertisement, it acknowledges it, stores it, and forwards it to its own neighbors.
B. If a router receives multiple copies of the new link-state advertisement, it will simply ignore all copies received after the first one.
C. Every router that receives the new link-state advertisement updates its age field before forwarding it.
D. Every router that receives the new link-state advertisement runs the SPF algorithm to recalculate its shortest-path tree and its forwarding database.
Answer: C
Question #5 (Topic: Exam A)
A routing domain uses a link-state routing protocol. Which of the following would NOT be an advantage of dividing the entire routing domain into areas?
A. Detailed topology information is only shared among routers within the same area, thus reducing the complexity of the SPF calculation.
B. Route tables can be reduced by summarizing the IP prefixes advertised between areas.
C. Less-capable routers can be isolated from having to keep track of IP prefixes that are external to the local routing domain.
D. Fewer routers are required to handle the same amount of traffic, as compared to a single-area domain.
Answer: D
