Key Terms

Before you take the exam, be certain you are familiar with the following terms:

adjacencies	link-state routing
autonomous system (AS)	NLSP
classfull routing	OSPF
classless routing	poison reverse
convergence time	prefix routing
counting to infinity	RIP
distance-vector routing	route poisoning
Enhanced IGRP (EIGRP)	routing loops
gateway of last resort	routing protocols
hold-down	ships-in-the-night routing
hybrid routing	split horizon
IGRP	update intervals
IS-IS