4A0-112: Nokia IS-IS Routing ProtocolDemo

By Nokia · Question Mode

QuestionQ12

Introduction to Security

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.
Explanation

The adjacency database records the state and details of directly connected neighbor relationships that have formed adjacencies. Complete inter-router topology information is maintained in the link-state database, which is synchronized among routers in an OSPF area; SPF calculations use that database to derive the routing and forwarding entries.

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