Alcatel-Lucent NRS I – Interior Routing Protocols and High Availability — Question 24

Which of the following statements regarding distance vectors protocols are true?
(Choose two answers).

Answer options

• A. RIPv1, RIPv2, and BGP are distance vector protocols.
• B. OSPF and IS-IS are distance vector protocols.
• C. Routing tables are exchanged between neighbors; however, no routing table is transmitted beyond the immediate neighbor.
• D. Distance vector protocols use the Dijkstra SPF algorithm.
• E. Routers that participate in distance vector routing protocols maintain full knowledge of distant routers and how they interconnect

Correct answer: A, C

Explanation

The correct answers are A and C because RIPv1, RIPv2, and BGP are indeed distance vector protocols, while routing tables are only shared with immediate neighbors in this type of protocol. Options B and D are incorrect as OSPF and IS-IS are link-state protocols, and distance vector protocols do not use the Dijkstra SPF algorithm, which is specific to link-state protocols. Option E is also wrong because distance vector protocols do not maintain full knowledge of distant routers.