Lesson 1

Question 1

Is the transfer of data or information between a source and a receiver.

Answer 1

Data Communication

Question 2

Transmits the data.

Answer 2

Source

Question 3

Receives the data.

Answer 3

Receiver

Question 4

Are the exchange of data between two devices via some form of transmission medium such as a wire cable.

Answer 4

Data communications

Question 5

Refers to information presented in whatever form is agreed upon by the parties creating and using the data.

Answer 5

Data

Question 6

Information that is stored in digital form.

Answer 6

Data

Question 7

Is defined as knowledge or intelligence

Answer 7

Information

Question 8

Is a set of devices interconnected by media links

Answer 8

Network

Question 9

A global computer network providing a variety of information and communication facilities, consisting of interconnected networks using standardized communication protocols.

Answer 9

Internet

Question 10

In what year was a proposal submitted to a Scottish magazine that suggested running a communications line between villages?

Answer 10

1753

Question 11

How many wires were the suggested communications line between villages from a proposal submitted to a Scottish magazine?

Answer 11

26 parallel wires

Question 12

What did each wire represent in the proposal that was submitted to a Scottish magazine?

Answer 12

Letters of the Alphabet

Question 13

Who developed an unusual system based on five-by-five matrix representing 25 letters?

Answer 13

Carl Friedrich Gauss

Question 14

Why were there only 25 letters included in Gauss’s system?

Answer 14

I and J were combined

Question 15

When did Gauss develop an unusual system based on a 5x5 matrix?

Answer 15

1833

Question 16

The first successful and practical data communications system.

Answer 16

Telegraph

Question 17

Who invented the Telegraph?

Answer 17

Samuel F.B. Morse

Question 18

When was the Telegraph invented?

Answer 18

1832

Question 19

What were transmitted across the wire of a telegraph?

Answer 19

dots and dashes

Question 20

First practical data communications code.

Answer 20

Morse Code

Question 21

When did Morse secure an American patent for his telegraph?

Answer 21

1840

Question 22

What was the first telegraph line established?

Answer 22

“What hath God wrought!”

Question 23

Places where the first telegraph line was established between

Answer 23

Baltimore and Washington D.C

Question 24

When was the first telegraph line established?

Answer 24

1844

Question 25

When was the first slow-speed telegraph printer invented?

Answer 25

1849

Question 26

When did the first high-speed printers become available?

Answer 26

1860

Question 27

Speed of the first high-speed printers.

Answer 27

15-bps

Question 28

Allowed signals up to six different telegraph machines to be transmitted simultaneously over a single wire.

Answer 28

Telegraph Multiplexer

Question 29

Who invented a telegraph multiplexer?

Answer 29

Emile Baudot

Question 30

When was the telegraph multiplexer invented?

Answer 30

1874

Question 31

Who invented the telephone?

Answer 31

Alexander Graham Bell

Question 32

When was the telephone invented?

Answer 32

1876

Question 33

Who succeeded in sending radio telegraph messages?

Answer 33

Guglielmo Marconi

Question 34

When did Guglielmo Marconi succeeded in sending radio telegraph messages?

Answer 34

1899

Question 35

What allowed the transmission of information across large spans of water?

Answer 35

Commercial radio stations

Question 36

When were the first commercial radio stations installed?

Answer 36

1920

Question 37

Who developed the first special-purpose computer using electromechanical relay?

Answer 37

Bell Laboratories

Question 38

When was the first special-purpose computer using electromechanical relay developed?

Answer 38

1940

Question 39

What was the first mass produced electronic computer?

Answer 39

UNIVAC

Question 40

Who built the UNIVAC?

Answer 40

Remington Rand Corporation

Question 41

When was the UNIVAC mass produced?

Answer 41

1951

Question 42

When were batch processing systems replaced by on-line processing systems.

Answer 42

1960s

Question 43

When were the microprocessor-controlled microcomputers introduced?

Answer 43

1970s

Question 44

When did personal computers became an essential item?

Answer 44

1980s

Question 45

When did the AT&T operating tariff allowed only equipment furnished by the same company to be connected to AT&T lines.

Answer 45

1968

Question 46

When did the Internet began to evolve at the ARPA?

Answer 46

1969

Question 47

Was formed to connect sites around the US.

Answer 47

ARPANET

Question 48

When was ARPANET formed to connect sites around the US?

Answer 48

1970

Question 49

What does ARPANET stand for?

Answer 49

Advanced Research Projects Agency Network

Question 50

When did the World Wide Web became publicly available?

Answer 50

1991

Question 51

3 major developments

Answer 51

reduced cost and size of terminals, new software systems, competition

Question 52

Information can be ____ or ____.

Answer 52

Local or Remote

Question 53

Communication that occurs face to face

Answer 53

Local Communication

Question 54

Communication that occurs over a long distance

Answer 54

Remote Communication

Question 55

Is any system of computers used to transmit and/or receive information between two or more locations.

Answer 55

Data Communication Network

Question 56

Is a set of equipment, transmission media, and procedures that ensures that a specific sequence of events occurs in a network in the proper order to produce the intended results.

Answer 56

Network Architecture

Question 57

Primary goal of network

Answer 57

to give the users of the network the tools necessary for setting up the network and performing data flow control.

Question 58

General Classifications of network and network protocols

Answer 58

Current Networks, Legacy Networks, Legendary Networks

Question 59

Include the most modern and sophisticated networks and protocols available.

Answer 59

Current Networks

Question 60

Is the generic name assigned to any old network which is rarely used today.

Answer 60

Legacy Networks

Question 61

Is called this when an antiquated network or protocol finally disasppears

Answer 61

Legendary Networks

Question 62

Classifications of Computer Networks

Answer 62

Broadcast Network, Point-to-point Network

Question 63

All stations and devices on the network share a single communication channel

Answer 63

Broadcast Network

Question 64

It only has two stations and no addresses are needed.

Answer 64

Point-to-point Network

Question 65

Are set if customs, rules, regulations dealing with formality or precedence.

Answer 65

Protocols

Question 66

Are sets of rules governing the orderly exchange of data within the network or a portion of the network.

Answer 66

Data Communication Protocols

Question 67

Refers to the structure or format of the data within the message, which includes sequence in which the data are sent.

Answer 67

Syntax

Question 68

Refers to the meaning of each section of data

Answer 68

Semantics

Question 69

Are guidelines that have been generally accepted by the data communication industry

Answer 69

Data Communications Standards

Question 70

Data Communication Protocols can either be ____ or ____

Answer 70

Connection Oriented or Connectionless

Question 71

Modified definition of Data Communication

Answer 71

“Data Communication is the exchange of data (in the form of 0’s and 1’s) between two devices (computers ) via some form of the transmission.”