Question

Consider the following statements about the routing protocols. Routing Information Protocol (RIP) and Open Shortest Path First (OSPE) in an IPv4 network.

I. RIP uses distance vector routing

II. RIP packets are sent using UDP

III. OSPF packets are sent using TCP

IV. OSPF operation is based on link-state routing

Which of the statements above are CORRECT?
1. I and IV only
2. I, II and III only
3. I, II and IV only
4. II, III and IV only

Answer 1

Correct Answer - Option 3 : I, II and IV only

Option 1) RIP uses distance vector routing

RIP is a dynamic routing protocol which uses hop count as a routing metric between source and destination. It uses distance vector routing So, it is correct.

Option 2) RIP packets are sent using UDP

RIP uses the UDP protocol for transmission of data. So, it is correct.

Option 3) OSPF packets are sent using TCP

OSPF is a link state routing protocol which uses multicast address to find the best path between source and destination. As, TCP does not support multicasting. So, OSPF packets are not sent using TCP. So, it is incorrect.

Option 4) OSPF operation is based on link-state routing. It is correct.