Q&A 423
Q&A
As mentioned in Chapter 1, the questions and scenarios in this book are more difficult than what
you should experience on the actual exam. The questions do not attempt to cover more breadth
or depth than the exam; however, they are designed to make sure that you know the answer.
Rather than allowing you to derive the answer from clues hidden inside the question itself, the
questions challenge understanding and recall of the subject. Questions from the "Do I Know
This Already?" quiz from the beginning of the chapter are repeated here to ensure that you have
mastered the chapter's topic areas. Hopefully, these questions will help limit the number of
exam questions on which you narrow your choices to two options and then guess.
The answers to these questions can be found in Appendix A, on page 748.
1
What type of routing protocol algorithm uses a holddown timer? What is its purpose?
2
Define what split horizon means to the contents of a routing update. Does this apply to
both the distance vector algorithm and the link-state algorithm?
3
Write down the steps you would take to migrate from RIP to IGRP in a router whose
current RIP configuration includes only router rip, followed by a network 10.0.0.0
command.
4
How does the IOS designate a subnet in the routing table as a directly connected network?
What about a route learned with IGRP and a route learned with RIP?
5
Create a configuration for IGRP on a router with these interfaces and addresses: e0 using
10.1.1.1, e1 using 224.1.2.3, s0 using 10.1.2.1, and s1 using 199.1.1.1. Use process ID 5.
6
Create a configuration for IGRP on a router with these interfaces and addresses: to0 using
200.1.1.1, e0 using 128.1.3.2, s0 using 192.0.1.1, and s1 using 223.254.254.1.
7
From a router's user mode, without using debugs or privileged mode, how can you
determine what routers are sending you routing updates?
8
How often does IPX RIP send routing updates, by default?
9
Describe the metric(s) used by IPX RIP in a Cisco router.
10
Does IPX RIP use Split Horizon?
11
True or false: RIP and SAP information is sent in the same packets. If true, can only one
of the two be enabled in a router? If false, what commands enable each protocol globally
in a router?
12
What does GNS stand for? Who creates GNS requests, and who creates GNS replies?
13
Define the term separate multiprotocol routing in the context of the Cisco IOS and
Novell IPX.
14
How often does a router send SAP updates, by default?
ch06.fm Page 423 Monday, March 20, 2000 5:11 PM