Which IGP protocol is a common choice as EIGRP and OSPF as a routing protocol for large networks?

A. RIPv2
Correct Answer: B
Section: Routing
Interior Versus Exterior Routing Protocols
Routing protocols can be categorized as interior gateway protocols (IGP) or exterior gateway protocols (EGP). IGPs are meant for routing within an organization’s
administrative domain (in other words, the organization’s internal network). EGPs are routing protocols used to communicate with exterior domains, where routing
information is exchanged between administrative domains. Figure 10-2 shows where an internetwork uses IGPs and EGPs with multiple autonomous
administrative domains. BGP exchanges routing information between the internal network and an ISP. IGPs appear in the internal private network.
Figure 10-2. Interior and Exterior Routing Protocols


One of the first EGPs was called exactly that: Exterior Gateway Protocol. Today, BGP is the de-facto (and the only available) EGP. Potential IGPs for an IPv4
network are. Potential IGPs for an IPv6 network are. RIPv1 is no longer recommended because of its limitations. RIPv2 addresses many of the limitations of RIPv1
and is the most recent version of RIP. IGRP is an earlier version of EIGRP. RIPv1 and IGRP are no longer CCDA exam topics.

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