Cis Ch 4-6

Front 1

Computer Network

Back 1

computers and other hardware devices that are connected to share hardware, software, and data.

Front 2

wired network

Back 2

the computers and other devices on the network are physically connected via cabling to the network.

Front 3

wireless network connection

Back 3

wireless signals are used to send data through the air between devices.

Front 4

star network

Back 4

a network that uses a host device connected directly to several other devices.

Front 5

bus network

Back 5

a network that uses a central cable to which all network devices connect.

Front 6

mesh network

Back 6

a network that uses multiple connections between network devices.

Front 7

architecture

Back 7

the way networks are designed to communicate.

Front 8

client-server network

Back 8

a network that includes both clients and servers.

Front 9

peer-to-peer network (P2P)

Back 9

a network in which the computers on the network work at the same functional level, and users have direct access to the network devices.

Front 10

personal area network (PAN)

Back 10

is a network of personal devices for one individual that is designed to enable those devices to communicate and share data.

Front 11

Internet

Back 11

Worlds largest WAN

Front 12

Local area network (LAN)

Back 12

is a network that covers a relatively small geographical area, such as a home, an office building, or a school.

Front 13

Metropolitan area network (MAN)

Back 13

is a network designed to service a metropolitan area, typically a city or country.

Front 14

Wide area network (WAN)

Back 14

is a network that covers a large geographical area.

Front 15

intranet

Back 15

private network, such as a company LAN, that is designed to be used by an organization's employees and is set up like the internet with data posted on Web pages that are accessed with a Web browser.

Front 16

extranet

Back 16

company network that is accessible to authorized outsiders.

Front 17

virtual private network (VPN)

Back 17

is a private,secure path across a public network (usually the internet) that is set up to allow authorized users private, secure access to the company network.

Front 18

bandwitdth

Back 18

also called through put, is to the amount of data that ca be transferred in a given time period.

Front 19

analog signals

Back 19

represent data with continuous waves

Front 20

digital signals

Back 20

data is represented by only two discrete states: 0s and 1s

Front 21

serial transmission

Back 21

data is sent one bit at a time, wit each bit in the byte taking a separate path.

Front 22

parallell transmission

Back 22

the message is sent at least one byte at a time, with each bit in the byte taking a separate path.

Front 23

simplex transmission

Back 23

a type of data transmission in which data travels in a single direction only.

Front 24

half-duplex transmission

Back 24

a transmission in which data can travel in either direction but only in one direction at a time.

Front 25

full-duplex transmission

Back 25

a type of data transmission in which data can move in both directions at a the same time.

Front 26

circuit swiching

Back 26

a method of transmitting detain which messages travel along a dedicated network path.

Front 27

packet swiching

Back 27

a method of transmitting data in which messages are separated into packets that travel along the network separately and thinner reassembled in the proper order at the destination.

Front 28

broadcasting

Back 28

a method of transmitting data in which data is sent out to all nodes on a network and is retrieved only by the intended recipient.

Front 29

packet swiching

Back 29

messages are separated into small units called packets.

Front 30

broadcasting

Back 30

is when data is sent out, typically in packets, to all nodes on a network and is retrieved only y the intended recipient.

Front 31

radio signals

Back 31

wireless networks usually use these to send data through the airwaves.

Front 32

cellular radio transmissions

Back 32

a type of data transmission used with cell phones in which the data dissent and received via cell towers.

Front 33

microwaves

Back 33

high-frequency radio signals that can send large quantities of data at high speeds over long distances.

Front 34

microwave station

Back 34

earth-based station that can transmit microwave signals directly to another microwave station over distances of up to 30 miles.

Front 35

protocol

Back 35

set of rules to be followed in a specific situation.

Front 36

examples of protocols

Back 36

HTTP, HTTPS, FTP, SMTP, POP3

Front 37

ethernet

Back 37

most widely used standard for weird networks.

Front 38

alternatives to ethernet standers for wired home networks

Back 38

phoneline, powerline

Front 39

WiMAX

Back 39

a series of standards designed for longer range wireless networking connections.

Front 40

Mobile WiMAX

Back 40

mobile version of the WiMAX wireless networking standard.

Front 41

bluetooth

Back 41

a networking standard for very short range wireless connections.

Front 42

piconet

Back 42

a bluetooth network

Front 43

wireless usb

Back 43

a wireless version of USB designed to connect peripheral devices.

Front 44

zig bee

Back 44

designed to accommodate more than 65,000 devices on a single network and supports speeds from 20Kbps to 250 Kbps, depending on the frequency being used.

Front 45

network adapter

Back 45

also called network interface card, when it is in the form of an expansion card, is used to connect to a network.

Front 46

modem

Back 46

is used to connect a computer to a network over telephone lines.

Front 47

swich

Back 47

central device ina wired network

Front 48

router

Back 48

connects multiple networks sich as two LANs, two WANs etc.

Front 49

bridge

Back 49

to connect just two LANs together

Front 50

wireless access point

Back 50

device used to grant network access to wireless client devices.