Chapter 6 659
16
List three ways that routing protocols can be characterized.
Distance vector, link state, hybrid.
17
What is a routing loop?
A routing loop occurs when routers disagree. Routers disagree if their routing tables are
inconsistent.
18
What protocol has hybrid functionality, displaying the characteristics that resemble
distance-vector and link-state protocols?
EIGRP.
19
What is a stub network?
A stub network is a part of the network that can be accessed via only one route.
20
Two routing protocols, RIP and IGRP, are being redistributed. Design requirements state
that RIP advertisements must be blocked from entering the IGRP cloud. What command
should be implemented?
Passive interface.
21
What two factors determine convergence time?
The time it takes to detect a link failure.
The time it takes to determine a new route.
22
What is the routing metric for IP RIP?
Hop count.
23
How can the Hot Standby Routing Protocol (HSRP) be used to provide redundancy?
With HSRP, two or more routers communicate on a single gateway address. If the primary
router goes down, the secondary router becomes primary, utilizing the same gateway
address.
24
What three resources does routing consume?
CPU, memory, network.
25
List two methods of filtering routes when redistributing.
Route maps, access lists.
26
What protocols discussed in this chapter use the Hello protocol to update their routing
tables?
OSPF, EIGRP.
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