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P P E N D I X
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Answers to the "Do I Know
This Already?" Quizzes and
Q&A Sections
Answers to Chapter 2 "Do I Know This Already?" Quiz
1
What are the selection criteria for selecting a router platform?
Availability, bandwidth, cost, ease of management, applications and traffic patterns,
backup needs and QOS, and access control requirements are the selection criteria.0.
2
Which of the following does not affect the installation of a router?
a. availability
b. reliability
c. cost
d. router port density
e. security requirements
f. bandwidth usage
The answer is d, router port density. The router, and thus its port density, is selected
after the requirements are established.
3
In routing, what is meant by the term availability?
Availability describes whether a WAN service is offered in a given area and whether
it can be selected for use. For instance, if ISDN is not offered in a location, it is not
available, even though it is a valid choice.
4
In routing, what is meant by the term reliability?
Reliability is the term for how often a WAN service must be available. For instance,
do you require a backup link in the case of a primary link failure? Does dial-on-
demand routing (DDR) suffice for a particular application? These questions should be
asked when evaluating reliability from a design perspective.
5
Name two important issues that you must consider when selecting a product for a
SOHO.
You must consider cost and availability. Cost is always a factor to the smaller office,
and availability dictates what service is possible.