1) A modem allows computers to access other computers through following types of connection

2) Which type of modem can be added to the system unit through expansion slot?

3) Which of the following is NOT a coding scheme to represent data in computer?

4) Frequency is measured in:

5) How many modes of data communication are available?

6) Bps is short for:

7) Which of the following is the fastest communication mode

8) An advantage of synchronous over asynchronous transmission is:

9) Which of the following is not a:data communication mode?

10) Start/stop bits are not required in this type of transmission.

11) Unicode uses:

12) The transmission rate of modem can be measured in:

13) The signals produced by a computer to send over phone line must be converted to:

14) All of the following are elements of data communication system EXCEPT:

15) Which of the following cables consists of a single core of solid copper?

16) Most data .transmitted over telephone lines uses:.

17) The number of times a wave repeats during a specific time interval is called

18) The diameter of fiber optical cable is:

19) The chart,graph,pictures and freehand drawing are examples of:

20) Satellite transmission stations that can both send and receive messages are called:

21) Which kind of signal is mostly required by telephone lines?

22) Which communications medium requires line-of-sight?

23) The typical fiber optic cable consists of very narrow strand of glass called:

24) How many characters ASCII 8-bit code can represent?

25) The communication channels can be divided into_categories:

26) The internal transfer of binary data in a computer uses mode.

27) A fiber-optic cable’s core is measured in:

28) All of the following are guided communications media EXCEPT:

29) How many characters can Unicode represcnt?

30) How many characters ASCII 7-bit code can represent?

31) What is another term for guided media?

32) Which of the following coding schemes uses 4-bit code?

33) Transmission that is used without timing signal is called:

34) An important property of fiber optic cable is:

35) IBM stands for:

36) The number of frequencies that can fit on a link at one time is called:

37) Transmission from Earth to satellite is called:

38) The time taken by a data signal to reach to moon and then back to earth was about:

39) .The conversation over a walkie-talkie radio is-an example of:

40) The height of wave within a given period of time is known as:

41) The computers in wide geographical area can be efficiently connected by:

42) Which transmission allows data to travel in one direction at a time?

43) The mode that is like a two way street with traffic flowing in both direction at the.same time is ca

44) The music and speech.represent:

45) Analog signal is measured in:

46) Television and radio broadcasts are examples of:

47) A telephone conversation is’an example of:.

48) Modem stands for:

49) Which medium transmits voice and data via air as high-frequency radio waves?

50) The number of times a wave repeats during a specific time interval is called

51) Which of the following code can represent up to 65,536 symbols?

52) EBCDIC is a

53) The types.of signals can be:

54) What binary bits are used to encode digital data?

55) Computer transmit data in the form of codes.

56) What is another term for unguided media?

57) Which is the most secure type of transmission medium?

58) Which of the following type of data is used to display actions and movement?.

59) Transmission media are usually categorized as_

60) Which type of data consists of words,sentences and paragraphs?

61) BCD code is a_

62) ASCII code was.developed by:

63) Which of the following converts digital signals to analog and analog to digital?

64) Which of the following technique uses modulation?

65) An example of non-numerical data is:

66) Which of the following is not a communication media?

67) Which of the following is the insulation on a fiber-optic cable?

68) Transmission from a satellite to its earth-based station is called:

69) Physical path that connects the source and receiver is known as:

70) Which multiplexing technique shifts each signal to a different carrier frequency?

71) 50.This type of transmission is sometimes called start/stop transmission

72) code is 7-bit or.8-bit code.

73) Each set of bit pattern is called:

74) Data is transmitted block by block in: .

75) Digital signal represents a sequence of values.

76) signal is a continuous electrical signal in the form of wave.

77) BCD stands for:

78) The process of converting a digital signal to an analog signal is called:

79) Which value in start bit indicates that the transmission line is idle?

80) .Which transmission type transmits data one character at a time

81) Full-duplex communication is made. possible by the.devices known as:

82) How many devices can exist between a sending and receiving host?

83) Which of the following features is provided with a modem?

84) The conversation over a walkie-talkie radio is-an example of:

85) The medium in which signals travel through a cable or wire is called:

86) Which of the following devices uses parallel transmission?

87) Which of the following coding schemes primarily.used by IBM?

88) Which of the following transmission media is used in LAN?

89) The process of transferring data electronically from one place to another is caled

90) Sound,light and radio waves are examples of

91) Which modem is used to transmit data signals through air instead of cable?

92) A type of communication that sends data using flow control to synchronize data between sender

93) A type of communication that sends that uses a clock to control timing of bits being sent is called:

94) Which of the following can severally affect the quality of satellite transmission?

95) The’transmission in which data can be received and. sent simultaneously is called:

96) Which of the following consists of thin glass to transmit beams of light?

97) Digital signals are commonly known as:

98) Internet surfing is an example of:

99) The electromagnetic or light waves representing data are called:

100) The process of converting analog to digital signal is known as: