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Management Information Systems > Chapter 6: Business Networks and Telecommunications > Flashcards

Chapter 6: Business Networks and Telecommunications Flashcards

1
Q

_____________ is the transmittal of data and information from one point to another.

A

Telecommunications

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2
Q

_________ of telecommunications allow information to be immediate and not constrained by geographical distance.

A

Greater efficiency

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3
Q

Another benefit of telecommunications is _________ as central storage allows both local and remote access.

A

Better distribution of data

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4
Q

_______ derive their names from the territories of service providers, which are divided into areas known as cells.

A

Cellular phones

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5
Q

People sitting in conference rooms thousands of miles apart are brought together by their transmitted images and speech in what is called _________.

A

videoconferencing

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6
Q

________ is a standard communication protocol to create a radio connection between two devices.

A

Near-field communication (NFC)

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7
Q

_______ allows anyone with access to the Internet to download one of several free applications that can locate and download files from any online computer.

A

Peer-to-peer (P2P) File Sharing

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8
Q

A communications _______ is the physical means that transports the signal, such as a copper wire telephone line, a television cable, or radio waves.

A

medium

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9
Q

The _______ of the medium is the speed at which data is communicated, which is also called the transmission rate or bit rate.

A

bandwidth

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10
Q

_______ is the unit of measure for bandwidth.

A

Bits per second (bps)

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11
Q

When a line is capable of carrying multiple transmissions simultaneously, it is said to be _______.

A

broadband

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12
Q

________ is a popular medium for connecting computers and networking devices because it is relatively flexible, reliable, and low cost. It consists of pairs of insulated copper wires twisted together.

A

Twister pair cable

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13
Q

________ is sometimes called TV cable or simply “cable” because of its common use for cable television transmission. It is widely used for links to the Internet.

A

Coaxial cable

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14
Q

_________ uses light instead of electricity to represent bits. These lines are made of thin fiberglass filaments.

A

Fiber optic technology

Optical fiber

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15
Q

_______ use radio waves to carry bits. Eg. Wi-Fi and Bluetooth.

A

Radio frequency (RF) technologies

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16
Q

________ are high-frequency radio waves that can carry signals over long distances with high accuracy.

A

Microwaves

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17
Q

________ are broadband services that are offered through power lines.

A

Broadband over Power Lines

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18
Q

From the point of view of organizations, among the important factors in choosing a networking medium are _______.

A
  1. Availability
  2. Current and potential bandwidth
  3. Vulnerability to electromagnetic interference or radio frequency interference
  4. Current and future needs for data security
  5. Compatibility with an already installed network
    Cost
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19
Q

In the context of data communications, a _______ is a combination of devices or nodes (computers or communications devices) connected to each other through communication media.

A

network

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20
Q

A computer network within a building, or a campus of adjacent buildings, is called __________.

A

local area network (LAN)

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21
Q

A _______ is a computer often used as a central repository of programs and files that all connected computers can use.

A

server

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22
Q

_______ is the ease of expanding a system.

A

Scalability

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23
Q

A ________ usually links multiple LANs within a large city or metropolitan region and typically spans a distance of up to 50km.

A

metropolitan area network (MAN)

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24
Q

A _______ is a far-reaching system of networks. It can consists of multiple LANs or MANs that are connected across a long distance. The most well-known is the Internet.

A

wide area network (WAN)

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25
Q

_________ provide enhanced network services. It fulfills organizational needs for reliable data communications while relieving the organization of the burden of providing its own network management and maintenance.

A

Value-added networks (VANs)

26
Q

A _________ is a wireless network designed for handheld and portable devices such as smartphones and tablet or laptop computers, and is intended for use by only one or two people.

A

personal area network (PAN)

27
Q

______ connects a device to a switch, bridge, or router, which connects to a LAN or WAN.

A

Network interface card (NIC)

28
Q

A _______ is a common device often used as a central location to connect computers or devices to a local network.

A

switch

29
Q

A ________ is a device that connects two networks, such as a LAN, to the Internet.

A

bridge

30
Q

A _______ routes data packets to the next node on their way to the final destination.

A

router

31
Q

A _________ amplifies or regenerates signals so that they do not become weak or distorted.

A

repeater

32
Q

A _______ in traditional usage is a device whose purpose is to translate communications signals from analog to digital, and vice versa.

A

modem

33
Q

A ________ is a slower type of connection through modem, usually no faster than 56 Kbps.

A

dial-up connection

34
Q

A ________ can be thought of as a “tunnel” through the Internet or other public network that allows only authorized users to access company resources.

A

virtual private network (VPN)

35
Q

A communications ______ is a set of rules that govern communication between computers or between computers and other computer-related devices that exchange data.

A

protocol

36
Q

Communication on the Internet follows mainly _________, which is a set of related protocols. The former ensures that the packets arrive accurately and in the proper order, while the latter ensures delivery of packets from node to node in the most efficient manner.

A

TCP/IP (Transmission Control Protocol/Internet Protocol)

37
Q

The ________ is the highest speed channels.

A

Internet backbone

38
Q

A computer connected directly to the Internet backbone - the highest speed communications channels - is called a ______.

A

host

39
Q

Every device on the Internet is uniquely identified with a numerical label known as an ________.

A

Internet protocol address (IP address)

40
Q

The process of associating a character-based name such as google.com with an IP address is called domain name resolution, and the domain name resolution services is _______.

A

Domain Name System (DNS)

41
Q

Servers and many other computers and devices are assigned permanent IP address, called a ________.

A

static IP address

42
Q

A computer connected to the Internet intermittently might be assigned a temporary IP address for the duration of its connection only. Such a number is called a _________.

A

dynamic IP address

43
Q

The Institute of Electrical and Electronic Engineers (IEEE) sets standards for communication protocols. _______ is the only LAN protocol of significance.

A

Ethernet

44
Q

_______ is faster Ethernet connection of one Gbps or greater.

A

Gigabit Ethernet

45
Q

IEEE 802.11 is a family of wireless protocols, collectively known as ______.

A

Wi-Fi (Wireless Fidelity)

46
Q

A direct link to a wireless router or access point creates a ______.

A

hotspot

47
Q

______ is the ability to scramble and code messages through encryption keys that are shared only between the sender and receiver.

A

Encryption

48
Q

Named after a Scandinavian king who unified many tribes, the _______ standard was developed for devices that communicate with each other within a short range of up to 10 meters in the office, at home and in motor vehicles.

A

Bluetooth

49
Q

________ increases the range and speed of wireless communication. It might potentially reach up to 110km with a speed of 100 Mbps. This standard can cover entire metropolitan areas and provide Internet access to hundreds of households that either cannot afford an Internet service or for some reason cannot obtain access.

A

Worldwide Interoperability for Microwave Access (WiMAX)

50
Q

_________ is a standard method of wireless communications, specifically for high-speed data transmission for mobile phones.

A

Long-Term Evolution (LTE), also known as 4G LTE

51
Q

_______ is the speed of receiving from the network.

A

Downstream

52
Q

_________ speeds is the speeds of transmitting into the network which is usually much slower.

A

Upstream

53
Q

_______ is internet links provided by television cable firms.

A

Cable

54
Q

With ________, data remains digital throughout the entire transmission; it is never transformed into analog signals.

A

digital subscriber line (DSL)

55
Q

_________ are point-to-point dedicated digital circuits provided by telephone companies. These are expensive.

A

T1 and T3 lines

56
Q

_______ is a free satellite service that provides location information.

A

Global Positioning System (GPS)

57
Q

________ is point-to-point transmission between two stationary devices, usually between two buildings, as opposed to mobile wireless, in which people carry a mobile device.

A

Fixed wireless

58
Q

When the optical fiber reaches the subscriber’s living or work space, it is referred to as ________.

A

Fiber to the Home (FTTH)

59
Q

Companies willing to pay high fees can enjoy very high connection speeds. These services are denoted with ____, the acronym for _______, because they are provided through optical fiber lines.

A

OC

optical carrier

60
Q

Internet users can conduct long-distance and international conversations via their Internet connection for a fraction of regular calling costs. The technology is called Internet telephony, IP telephony, or ________.

A

VoIP (Voice over Internet Protocol)

61
Q

A _______ is a radio transceiver that is activated for transmission by a signal submitted to it.

A

transponder

62
Q

________ can be very tiny, about the size of a rice grain, or several square inches, depending on the amount they need to contain and the environment in which they are used.

A

RFID tags

Management Information Systems (11 decks)

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