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Lesson 3
Selecting Network/Transport Layer Protocols
1-29
individual network. Therefore, both TCP/IP and IPX traffic can be addressed
to a spe-
cific computer on a specific network anywhere in the enterprise.
The only identifier that NetBEUI uses is the computer’s NetBIOS name. This
name
identifies the computer on the network, but there is no identifier for the
network itself.
NetBEUI therefore cannot address traffic to a specific computer on another
network.
Planning If you are designing a network that consists of a single LAN, such
as for a home
or a small business, NetBEUI is a suitable choice. However, if you are
designing an
internetwork, or if your computers need access to the Internet, you should
not use NetBEUI.
Tip
Although it might not be a suitable full-time protocol for your network,
NetBEUI also has
value as a troubleshooting tool. If you have computers on the same TCP/IP
LAN that cannot
communicate, and you suspect there might be a TCP/IP configuration problem,
you can
install NetBEUI on the computers as a test. If the computers can
successfully communicate
using NetBEUI, you know that the networking hardware is functioning properly
and the prob-
lem lies somewhere in the TCP/IP installation or configuration.
Lesson Review
The following questions are intended to reinforce key information presented
in this
lesson. If you are unable to answer a question, review the lesson materials
and try the
question again. You can find answers to the questions in the “Questions and
Answers”
section at the end of this chapter.
1. Which of the following network/transport layer protocols can you use for
Win-
dows file sharing when installed alone?
a. TCP/IP only
b. TCP/IP and NetBEUI only
c. TCP/IP and IPX only
d. TCP/IP, IPX, and NetBEUI
2. Under what conditions would a network designer be obliged to install the
IPX
protocol suite on workstations using Windows operating systems?
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