Chapter Extension 8 Flashcards Preview

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Flashcards in Chapter Extension 8 Deck (15)
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1
Q

computer network

A

a collection of computers that communicate with one another over transmission lines wirelessly

2
Q

local are network (LAN)

A

connects computers that reside in a single geographic location on the premises of the company that operates the LAN

3
Q

wide area network (WAN)

A

connects computers at different geographic locations

4
Q

protocol

A

set of rules that programs on two communicating devices follow

5
Q

internet

A

network of networks

6
Q

ethernet

A

specifies hardware characteristics, such as which carries which signals
describes how messages are to be packaged and processed for wired transmission over the LAN

7
Q

internet service provider (ISP) functions

A
  1. provides you with a legitimate internet address
  2. serves as your gateway to the internet
  3. ISP’s pay for the internet
8
Q

internet service provider example

A

Time Warner

AT&T

9
Q

digital subscriber line (DSL)

A

operates on the same line as voice telephones but does not interfere with the telephone service

10
Q

three ways to connect your LAN to the internet

A

Digital Subscriber Line
Cable Line
WAN wireless connection

11
Q

IP address

A

a number that identifies a particular device

12
Q

domain name

A

a worldwide-unique name that is affiliated with a public IP address

13
Q

URL

A

uniform resource locator

14
Q

three-tier architecture

A

user tier
server tier
database tier

15
Q

service-oriented architecture (SOA)

A

all interactions among computing devices are defined as services in a formal, standardized way