What two situations could require the use of multiple routing protocols? (Choose two)
A.
when using UNIX host-based routers
B.
when smaller broadcast domains are desired
C.
because having multiple routing protocols confuses hackers
D.
when migrating from an older Interior Gateway Protocol (IGP) to a new IGP
E.
when all equipment is manufactured by Cisco
F.
when there are multiple paths to destination networks
Explanation:
Simple routing protocols work well for simple networks, but networks grow and become more
complex. While running a single routing protocol throughout your entire IP internetwork is
desirable, multiprotocol routing is common for a number of reasons, including company mergers,
multiple departments managed by multiple network administrators, multivendor environments, or
simply because the original routing protocol is no longer the best choice. Often, the multiple
protocols are redistributed into each other during a migration period from one protocol to the other.