Computer Networks

Question 1

Any device connected to the network is a ___.

Answer 1

node

Question 2

A node, usually a microcomputer, used by end users is called a ___.

Answer 2

client

Question 3

A ___ uses network resources but does not usually supply resources to the network.

Answer 3

client

Question 4

___ are nodes that are not generally used by end users.

Answer 4

Servers

Question 5

A node dedicated to providing services or resources to the rest of the network (e.g., a file server maintains centralized application and data files, a print server provides access to high-quality printers, etc.) is called a ___.

Answer 5

server

Question 6

The communication link between nodes on the network is called ___ ___.

Answer 6

transmissions media

Question 7

___ ___ ___ (___) use dedicated communications lines (i.e., used only by the network).

Answer 7

Local Area Networks (LANs)

Question 8

___ ___ ___ (___) use public or shared communications lines (i.e. telephone lines, television cables, etc.)

Answer 8

Wide Area Networks (WANs)

Question 9

Traditionally used for phone connections, ___ ___ is the slowest, least secure (e.g. easy to tap) and most subject to interference of all the wired media; recent modifications have, however, improved performance significantly; least expensive media.

Answer 9

twisted pair

Question 10

Similar to the cable used for television, ___ ___ is faster, more secure, and less subject to interference than twisted pair but has a slightly higher cost.

Answer 10

coaxial cable

Question 11

Extremely fast and secure, ___ ___ ___ ___ are based on light pulses instead of electrical impulses; therefore they are not subject to electrical interference and the signal does not degrade over long distances; more expensive to purchase and to install.

Answer 11

fiber optic cable communications

Question 12

The ___ ___ ___ controls communication over the network and access to network resources.

Answer 12

network operating system

Question 13

In ___ ___ ___ ___ network operating systems, all nodes share in communications management; no central controller (server) is required; these systems are relatively simple and inexpensive to implement; used by LANs.

Answer 13

Peer-to-peer systems

Question 14

___ ___ link networks to other networks and to remote access.

Answer 14

Communications devices

Question 15

Modems, multiplexers, concentrators, bridges, routers, and gateways are examples of ___ ___.

Answer 15

Communications devices

Question 16

___ ___ ___ were so named because they were originally confined to very limited geographic areas (a floor of a building, a building, or possibly several buildings in very close proximity to each other).

Answer 16

Local Area Networks

Question 17

With the advent of relatively inexpensive fiber optic cable, ___ ___ ___ can extend for many miles.

Answer 17

Local Area Networks

Question 18

Although ___ can vary dramatically in geographic area, most are national or international in scope.

Answer 18

WANs