Which of the following protocols support VLSM, summarization, and discontiguous networking?

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Question: Which of the following protocols support VLSM, summarization, and discontiguous networking?

[A].

1 and 4

[B].

2 and 5

[C].

3, 4 and 6

[D].

All of the above

Answer: Option C

Explanation:

RIPv1 and IGRP are true distance-vector routing protocols and can’t do much, really-except build and maintain routing tables and use a lot of bandwidth! RIPv2, EIGRP, and OSPF build and maintain routing tables, but they also provide classless routing, which allows for VLSM, summarization, and discontiguous networking.