CCNP Route FAQ: IP Routing Principles Q1. Name one routing protocol that sends periodic updates. Answer: RIPv1, RIPv2, and IGRP all send periodic updates. Q2. What is an incremental update, and how often is it sent out? Answer: An incremental update is an update that is sent out only when there is a change in the network. It contains only the information about the change. … [Read more...]