Which of the following protocols support VLSM, summarization, and discontiguous networking? RIPv1 IGRP EIGRP OSPF BGP RIPv2

1 and 4
2 and 5
3, 4 and 6
All of the above

Correct Answer: 3, 4 and 6

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.

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