Cisco Certified Network Associate (CCNA) Practice Exam

Which of the following is NOT a component of OSPF operation?

1. Router ID

2. Link State Advertisement

3. Route Redistribution

4. Transport Layer Security

The correct answer is: Transport Layer Security

In Open Shortest Path First (OSPF) operation, the primary components include a Router ID, Link State Advertisements (LSAs), and Route Redistribution. The Router ID is a crucial identifier for OSPF routers, uniquely identifying each router within the OSPF network. It plays a key role in establishing OSPF sessions and helps in the identification of routers in routing tables and LSAs. Link State Advertisements are fundamental to OSPF's operation. They are used by routers to share information about the state of their links with all other routers in the area. This information enables all routers in the OSPF network to build a consistent and accurate view of the network topology, allowing them to compute the best paths for routing traffic. Route Redistribution allows for the integration of different routing protocols. While it is an important concept in routing, it is not a direct component of the OSPF protocol itself. Instead, it refers to the process by which routes from one routing protocol are shared into another protocol's routing table, which involves additional considerations beyond the OSPF protocol. Transport Layer Security (TLS) does not specifically relate to the operation of OSPF. While securing OSPF traffic is important, the protocol does not