Advanced Networking Administrator Test Prep

Answer: C - For a router to be able to load balance traffic, one should use the IGRP protocol.

Key Takeaway: Of the protocols given here, only IGRP is capable of supporting unequal load balancing paths. Unequal load balancing is also known as variance. The variance command instructs the router to include routes with a metric less than n times the minimum metric route for that destination, where n is the number specified by the variance command. The variable n can take a value between 1 and 128, with the default being 1.