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CSIT 100 > Module 7 > Flashcards

Module 7 Flashcards

1
Q

antenna

A

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

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2
Q

bluetooth

A

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

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3
Q

computer network

A

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.

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4
Q

digital signal

A

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

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5
Q

Ethernet (802.3)

A

The most widely used wired networking standard. Typically used with LANs that have a star topology

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6
Q

global positioning system (GPS)

A

A system that uses satellites and a receiver to determine the exact geographic location of the receiver.

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7
Q

mesh network

A

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

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8
Q

switch

A

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

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9
Q

TCP/IP

A

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

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10
Q

WirelessHD (WiHD)

A

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

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11
Q

Internet

A

largest computer network in the world

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12
Q

monitoring systems

A

use networking technology to determine the current location or status of an object. i.e. RFID, GPS, electronic medical monitors, home healthcare

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13
Q

telecommuting

A

individuals work from remote locations (usually home) and communicate with place of business and clients using networking technology

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14
Q

network topologies

A

indicates how the devices in a network are arranged

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15
Q

star network

A

all network devices connected to a central device. Most common.

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16
Q

bus network

A

all network devices connected to a central cable in a linear fashion

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17
Q

peer-to-peer (P2P) networks

A

content exchanged over internet, directly between users.

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18
Q

Personal Area Networks (PANs)

A

connects individual’s personal devices that are physical close together

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19
Q

Local Area Networks (LANs)

A

connects devices connected in small geographic area

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20
Q

Metropolitan Area Networks (MANs)

A

covers metropolitan areas such as a city or county and can handle higher population demands

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21
Q

Wide Area Networks (WANs)

A

covers a large geographic area

22
Q

intranet

A

private network designed to be used by an organization’s employees

23
Q

extranet

A

company’s network accessible by authorized outsiders

24
Q

virtual private network (VPN)

A

private, secure path over the internet

25
Q

bandwidth

A

amount of data that can be transferred in a given period of time

26
Q

analog signal

A

data represented by continuous waves

27
Q

digital signal

A

data represented by two discrete states (0s & 1s); faster

28
Q

serial transmission

A

data sent one bit at a time, one after another, along a single path

29
Q

parallel transmission

A

group of bits sent at the same time, and each bit takes a separate path. Used more often

30
Q

twisted-pair cable

A

pairs of insulated wires twisted together. Used for telephones and LANs, Ethernet

31
Q

coaxial cable

A

thick center wire surrounded by insulation, and covered with a shield of braided wire. Used in TVs.

32
Q

fiber-optic cables

A

multiple thin glass or plastic fibers, with data sent via light pulses. Much faster.

33
Q

cellular radio transmissions

A

radio transmissions sent to and from cell phones via cell towers. Service areas are arranged in overlapping honeycomb shaped zones called cells, with each cell containing one tower.

34
Q

Wi-Fi

A

wireless networking standards

35
Q

WiMAX

A

networking standards for longer range networks, like MANs.

36
Q

network adapter

A

aka network interface card; used to connect a computer to a network

37
Q

modem

A

used to connect a computer to a network over telephone lines

38
Q

router

A

connects multiple networks

39
Q

wireless access point

A

device that allows wireless devices to connect to a network.

40
Q

bridge

A

connects two LANs

41
Q

repeaters

A

devices that amplify signals along a network

42
Q

range extenders

A

repeaters for a wireless network

43
Q

T/F: GPS systems are used only by the government.

A

false

44
Q

T/F: With serial transmissions, each bit of data is sent individually.

A

true

45
Q

T/F: The Internet is an example of a LAN.

A

false

46
Q

T/F: The type of cable used inside most homes for telephone service is twisted-pair wire.

A

true

47
Q

T/F: A router is a type of modem.

A

false

48
Q

With a(n) ___ network topology, all devices are connected in a line to a central cable.

A

bus

49
Q

A(n) ____ phone can be used with more than one communications network, such as when used with both a cellular and Wi-Fi network.

A

dual-mode

50
Q

A small network designed to connect the personal devices for an individual (such as via Bluetooth) is called a(n) ______

A

personal area network or PAN

51
Q

A(n) ______ is a network that transfers private information securely over the Internet or other public network.

A

virtual private network or VPN

52
Q

Match each description to its networking application, and write the corresponding number in the blank to the left of the description.

  1. To diagnose a patient from a distance.
  2. To work for a company in New York when you live in California.
  3. To watch a video in the living room that is stored on your computer.
  4. To receive telephone calls while you are out shopping.
  5. To determine your physical location while hiking in the mountains.
  6. Multimedia networking
  7. GPS
  8. Telemedicine
  9. Telecommuting
  10. Cellular phone
A
  1. To diagnose a patient from a distance.
  2. Telemedicine
  3. To work for a company in New York when you live in California.
  4. Telecommuting
  5. To watch a video in the living room that is stored on your computer.
  6. Multimedia networking
  7. To receive telephone calls while you are out shopping.
  8. Cellular phone
  9. To determine your physical location while hiking in the mountains.
  10. GPS

CSIT 100 (6 decks)

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