LAN: Chapter 4: Homework & Quiz

Question 1

A(n) ________ converts a computer’s outgoing digital signal to an analog signal that can be transmitted over a telephone line.

Answer 1

modem

Question 2

A(n) ________ is the movement of a frame or packet, point-to-point, from one network to the next.

Answer 2

hop

Question 3

The “W” in WDM stands for ____________.

Answer 3

wavelength

Question 4

OSPF stands for _________.

Answer 4

open shortest path

Question 5

A(n) ______ is software or hardware that secures data from being accessed outside a network and that can also prevent data from leaving the network through an inside source.

Answer 5

firewall

Question 6

Connects two or more cable segments and retransmits any incoming signal to all other segments.

Answer 6

repeater

Question 7

A network device that connects one LAN segment to another.

Answer 7

bridge

Question 8

A network device that can receive multiple inputs and transmit them to a shared network medium.

Answer 8

multiplexer

Question 9

Enables a network device, such as a computer, to connect to a network.

Answer 9

NIC

Question 10

Links network segments and forwards and filters frames between segments. Has the ability to increase the bandwidth on existing networks.

Answer 10

switch

Question 11

Also referred to as a concentrator.

Answer 11

hub

Question 12

A network device that enables communications between two different types of networked systems.

Answer 12

gateway

Question 13

Acts as a central hub on a token ring network.

Answer 13

MAU

Question 14

Used to connect networks that have dissimilar data links.

Answer 14

router

Question 15

IDSN lines require the use of a(n) ________ to connect to a PC.

Answer 15

terminal adapter

Question 16

The advantage of _____________ communications is that currently unallocated bandwidth can be allocated to you, even for a millisecond or two, when you are downloading a large file, for example.

Answer 16

cable modem

Question 17

__________ is software that is stored on a chip, such as a ROM chip.

Answer 17

Firmware

Question 18

When referencing Class I and Class II repeaters, a(n) _________ refers to two segments connected by one or more repeaters.

Answer 18

collision domain

Question 19

A ____ is a pathway inside the computer that is used to transfer information to the CPU or to peripherals attached to the computer.

Answer 19

bus

Question 20

The MNP ____ provides for cell phone transmission.

Answer 20

Class 10

Question 21

Multiplexers are simply ____.

Answer 21

switches

Question 22

What is a disadvantage of repeaters?

Answer 22

They can create an excessive amount of traffic on an already busy network.

Question 23

A router operates at the OSI ____ layer.

Answer 23

Physical

Question 24

Bridges are ______ independent.

Answer 24

protocol

Question 25

____ provide a single unit in which to combine all types of telecommunications connectivity, including modems.

Answer 25

Access servers

Question 26

The DOCSIS standards are associated with ____.

Answer 26

cable modems

Question 27

Lobe cables are used in connection with ____.

Answer 27

MAUs