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ITFN 1502 > Chapter 1 > Flashcards

Chapter 1 Flashcards

1
Q

An interconnection of computers and computing equipment using either wires or radio waves and can share data and computing resources is called a

A

computer network

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2
Q

Computer networks that use radio waves are termed …….

A

Wireless

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3
Q

Networks spanning an area of several meters around an individual ,including laptops personal digital assistants and wireless connection, are called

A

Personal area networks (PAN)

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4
Q

Networks that are a little larger in geographic size spanning a room, a floor within a building, a
building, or a campus are

A

local area networks(LAN)

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5
Q

Networks that serve an area up to roughly 50 kilometers approximately the area of a typical city
are called

A

metropolitan area networks (MAN)

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6
Q

Large networks encompassing parts of states, multiple states, countries, and the world are

A

Wide area networks (WAN)

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7
Q

The transfer of digital or analog data using digital or analog signals is called

A

Data Communications

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8
Q

The transmission of multiple signals on one medium.

A

Multiplexing

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9
Q

A technique that can maximize the amount of data sent over a medium.

A

Compression

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10
Q

Explain the process of Compression.

A

Compression squeezes data into smaller packages, reducing the amount of time needed to transmit the data.

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11
Q

A ……… transmitted telephone signals

A

voice network

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12
Q

A …….. transmitted computer data.

A

data network

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13
Q

The merging of voice and data networks is one example of ……..

A

convergence

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14
Q

The design, installation, and support of a network and its hardware and software is called

A

network management

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15
Q

Personal computers/microcomputers (desktops, laptops, netbooks, handhelds, etc.) where users reside are called

A

Workstations

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16
Q

The computers that store network software and shared or private user files are called

A

Servers

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17
Q

The collection points for the wires that interconnect the workstations are called

A

Switches

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18
Q

The connecting devices between local area networks and wide area networks are called

A

Routers

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19
Q

The computing devices that allow workstations to connect to the network and that make the decisions about where to route a piece of data

A

Nodes

20
Q

………. consists of the nodes and transmission lines, and collected into a cohesive unit

A

subnetwork or cloud

21
Q

A user at a microcomputer, or client machine, issues a request for some form of data or
service is called a

A

client/server system

22
Q

A device that was essentially a keyboard and screen with no long-term storage capabilities and little, if any, processing power is called a

A

computer terminal

23
Q

………. are sets of rules used by
communication devices.

A

protocols

24
Q

A ………..(aka communications model)places the appropriate network pieces in layers.

A

network architecture

25
Q

Name the layers of the TCP/IP suite

A
  • Application
  • Transport
  • Network
  • Network Access
  • Physical
26
Q

What is the function of the application layer

A

Supports the network application and might in some cases include additional services such as encryption or compression.

27
Q

Name frequently used application in the applications layer.

A
  • HTTP
  • SMTP
  • FTP
  • Telnet
  • SNMP
28
Q

allows Web browsers and servers to
send and receive World Wide Web pages

A

Hypertext Transfer Protocol (HTTP)

29
Q

allows users to send and receive
electronic mail

A

Simple Mail Transfer Protocol (SMTP)

30
Q

transfers files from one computer system to
another

A

File Transfer Protocol (FTP)

31
Q

allows a remote user to log in to another computer system

A

Telnet

32
Q

allows the numerous
elements within a computer network to be managed from a single point

A

Simple Network Management Protocol (SNMP)

33
Q

What is the function of the Transport layer

A

commonly uses TCP to maintain an error-free end-to-end connection.

34
Q

What is the function of the Network layer (sometimes called the IP layer)

A

used to transfer data within and between networks. (Transfers data packet from node to node (e.g. router to router)
within network)

35
Q

software that prepares a packet of data so that it can move from one network to another on the Internet or within a set of corporate networks is called the…

A

Internet Protocol (IP)

36
Q

What is the function of the Network Access layer (aka Data Link layer)

A

Responsible for taking the data and transforming it into a frame with header, control and address information, and error detection code, then transmitting it between the workstation and the network

37
Q

What is the function of the Physical layer

A

Handles the transmission of bits over a communications channel
– Includes voltage levels, connectors, media choice, modulation
techniques

38
Q

Name the OSI model layers

A
  • Application
  • Presentation
  • Session
  • Transport
  • Network
  • Data Link
  • Physical
39
Q

performs a series of miscellaneous functions necessary for presenting the data package properly to the sender or receiver.

A

presentation layer

40
Q

responsible for establishing sessions between users, also supports token management and establishes synchronization point.

A

session layer

41
Q

a service that controls which user’s computer
talks during the current session by passing a software token back and forth.

A

token management

42
Q

backup points used in case of errors or failures

A

synchronization points

43
Q

responsible for taking data from the network layer and
transforming it into a frame.

A

data link layer

44
Q

a nonphysical connection between sender and receiver that allows an exchange of commands and responses.

A

logical connection

45
Q

the only direct connection between sender and receiver, and is at the physical layer, where actual 1s and 0s the digital content of the message are transmitted over wires or airwaves.

A

physical connection

46
Q

The addition of control information to a packet as it moves through the layers

A

encapsulation

ITFN 1502 (8 decks)

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