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Chapter 1

Planning a Network Topology

Page

Lesson 2 Review

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1. Data-link layer protocols used on LANs, such as Ethernet, include functions asso-

ciated with which two layers of the OSI reference model?

The physical and data-link layers.

2. What phenomenon never occurs on a properly functioning Token Ring network

but is a normal occurrence on an Ethernet network?

Collisions.

3. List two advantages and two disadvantages of using fiber-optic cable to build a

network.

Advantages: Fiber-optic cables are immune to electromagnetic interference, can span longer

distances, and are inherently more secure than copper cables. Disadvantages: Fiber-optic

cables are more expensive than copper, more difficult to install, and require specialized tools.

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Lesson 3 Review

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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

d

2. Under what conditions would a network designer be obliged to install the IPX

protocol suite on workstations using Windows operating systems?

The IPX protocols are required on workstations using Windows operating systems only when it

is necessary to connect with NetWare servers earlier than version 5 or running IPX only.

3. Which of the following are connection-oriented protocols? (Choose all that apply.)

a. NetWare Core Protocol (NCP)

b. Transmission Control Protocol (TCP)

c. Sequenced Packet Exchange (SPX)

d. User Datagram Protocol (UDP)

b and c