EIGRP and OSPF - Technical MCQs

Q1:

Which of the following protocols support VLSM, summarization, and discontiguous networking?
  1. RIPv1
  2. IGRP
  3. EIGRP
  4. OSPF
  5. BGP
  6. RIPv2

A 1 and 4

B 2 and 5

C 3, 4 and 6

D All of the above

ANS:C - 3, 4 and 6

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.