Multiple choice

Refer to the exhibit. What protocol was used to distribute the routing information for the network 172.16.1.4?

  1. RIPv1

  2. RIPv2

  3. EIGRP

  4. OSPF
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The network 172.16.1.4 with a /30 mask indicates a point-to-point link. RIPv2 is being used here because RIPv1 is classful and cannot carry subnet mask information in its updates, which is essential for discontiguous networks or VLSM. RIPv2 includes subnet mask information, supports authentication, and uses multicast (224.0.0.9) rather than broadcast. The /30 subnet mask in the routing table confirms a classless protocol is in use.

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