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[Introduction to Computers] > 7: Computer Networks > Flashcards

7: Computer Networks Flashcards

1
Q

a collection of computers and other hardware devices that are connected together to share hardware, software, and data, as well as to communicate electronically with one another

A

computer network

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2
Q

a phone, such as a cellular or satellite phone, that uses a wireless network

A

mobile phone

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3
Q

a mobile phone that communicates via a cellular network

A

cellular (cell) phone

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4
Q

a mobile phone that can be used with more than one communications network, such as with both a cellular and a Wi-Fi network

A

dual-mode phone

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5
Q

a mobile phone that communicates via satellite technology

A

satellite phone

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6
Q

a system that uses satellites and a receiver to determine the exact geographic location of the receiver - used for directions

A

global positioning system (GPS)

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7
Q

the use of computers, video cameras, microphones, and networking technologies to conduct face-to-face meetings over a network

A

videoconferencing

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8
Q

the use of computers and networking technology to enable an individual to work from a remote location

A

telecommuting

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9
Q

the use of networking technology to provide medical information and services

A

telemedicine

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10
Q

a form of robot-assisted surgery in which the doctor’s physical location is different from the patient’s and robot’s physical location; the doctor controls the robot remotely over the Internet or another network

A

telesurgery

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11
Q

a network in which computers and other devices are connected to the network via physical cables

A

wired network

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12
Q

a network in which computers and other devices are connected to the network without physical cables; data is typically sent via radio waves

A

wireless network

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13
Q

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

A

star network

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14
Q

a network consisting of a central cable to which all network devices are attached

A

bus network

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15
Q

a network in which there are multiple connections among the devices on the network so that messages can take any of several possible paths

A

mesh network

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16
Q

a network that connects two or more of an individual’s personal devices when they are located close together

A

personal area network (PAN)

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17
Q

a network that connects devices located in a small geographical area, such as within a building

A

local area network (LAN)

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18
Q

a network designed to service a metropolitan area

A

metropolitan area network (MAN)

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19
Q

a network that connects devices located in a large geographical area

A

wide area network (WAN)

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20
Q

a private network that is set up similar to the Internet and is accessed via a Web browser

A

intranet

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21
Q

an intranet that is at least partially accessible to authorized outsiders

A

extranet

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22
Q

a private, secure path over the Internet that provides authorized users a secure means of accessing a private network via the Internet

A

virtual private network (VPN)

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23
Q

a type of signal where the data is represented by 0s and 1s

A

digital signal

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24
Q

a type of signal where the data is represented by continuous waves

A

analog signal

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25
Q

a type of data transmission in which the bits in a byte travel the same path one after the other

A

serial transmission

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26
Q

a type of data transmission in which bytes of data are transmitted at one time, with the bits in each byte taking a separate path

A

parallel transmission

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27
Q

a networking cable consisting of wire strands twisted in sets of two and bound into a cable

A

twisted-pair cable

28
Q

a networking cable consisting of a center wire inside a grounded, cylindrical shield, capable of sending data at high speeds

A

coaxial cable

29
Q

a networking cable that utilizes hundreds of thin transparent fibers over which lasers transmit data as light

A

fiber-optic cable

30
Q

a form of broadcast radio designed for use with cellular telephones that broadcasts using antennas located inside honeycomb-shaped cells

A

cellular radio

31
Q

an Earth-based device that sends and receives high-frequency, high-speed radio signals

A

microwave station

32
Q

an earth-orbiting device that relays communications signals over long distances

A

communications satellite

33
Q

a wireless networking medium that sends data as infrared light rays

A

infrared (IR) transmissions

34
Q

a networking protocol that uses packet switching to facilitate the transmission of messages; the protocol used with the Internet

A

TCP/IP

35
Q

the most widely used wired LAN networking standard

A

Ethernet (802.3)

36
Q

a widely used networking standard for medium-range wireless networks

A

Wi-Fi (802.11)

37
Q

an emerging fast, short-range wireless networking standard expected to be used for transferring large amounts of data from one device to another

A

WiGig (802.11ad)

38
Q

A wireless networking standard that is faster and has a greater range than Wi-Fi

A

WiMAX (802.16)

39
Q

a networking standard for very short-range wireless connections; the devices are automatically connected once they get within the allowable range

A

Bluetooth

40
Q

a wireless version of USB designed to connect peripheral devices

A

Wireless USB

41
Q

a standard for connecting Wi-Fi devices directly, without using a router or an access point

A

Wi-Fi Direct

42
Q

a networking standard for very short-range wireless connections among multimedia devices

A

Ultra Wideband (UWB)

43
Q

a wireless networking standard designed for very fast transfers between home electronic devices

A

WirelessHD (WiHD)

44
Q

a networking standard for very short-range wireless connections between devices; devices need to touch in order to communicate

A

TransferJet

45
Q

a network interface, such as an expansion card or external network adapter

A

network adapter

46
Q

an expansion card through which a computer can connect to a network

A

network interface card (NIC)

47
Q

a device that enables a computer to communicate over analog networking media, such as to connect that computer to the Internet via telephone lines

A

modem

48
Q

a device used to connect multiple devices on a single (typically wired) network; forwards packets to only the intended recipient

A

switch

49
Q

a device that connects multiple networks together; routes packets to their next location in order to efficiently reach their destination

A

router

50
Q

a device on a wireless network that connects wireless devices to that network

A

wireless access point

51
Q

a router with a built-in wireless access point; most often used to connect wireless devices to a network and an Internet connection and often contains a built-in switch

A

wireless router

52
Q

a device used to bridge or connect two LANs; most often used to connect wired devices wirelessly to a network

A

bridge

53
Q

a device on a network that amplifies signals

A

repeater

54
Q

a repeater for a wireless network

A

range extender

55
Q

a device used for receiving or sending radio signals; often used to increase the range of a network

A

antenna

56
Q

the original telephone network, still used today for conventional landline phones

A

plain old telephone service (POTS)

57
Q

networks that include both clients (computers and other devices on the network that request and utilize network resources) and servers (computers that are dedicated to processing client requests)

A

client-server networks

58
Q

network with no central server - all the computers on the network work at the same functional level, and users have direct access to the computers and other devices attached to the network

A

peer-to-peer (P2P) network

59
Q

data is sent in blocks and the blocks are timed so that the receiving device knows when they will arrive

A

synchronous transmission

60
Q

data is sent one byte at a time, along with a start bit and a stop bit

A

asynchronous transmission

61
Q

the entire transmission is sent together after requesting and being assigned the bandwidth necessary for all the data to arrive at the correct time

A

isochronous transmission

62
Q

data travels in a single direction only

A

simplex transmission

63
Q

data can travel in either direction, but only in one direction at a time (ex. walkie talkie)

A

half-duplex transmission

64
Q

data can move in both directions at the same time (ex. telephone)

A

full-duplex tranmission

65
Q

data uses a dedicated path from the sender to the recipient

A

circuit switching

66
Q

data is sent as individual packets, which are assembled at the recipient’s destination

A

packet switching

67
Q

data is sent to all nodes within range; the designated recipient retrieves the data

A

broadcasting

[Introduction to Computers] (9 decks)

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