1) Which is NOT a LAN protocol?

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

3) Modem stands for:

4) NIC allows direct connection to:

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

6) LAN does not use:

7) How many characters can Unicode represcnt?

8) A set collection of a large number of computers all over the world connected to one another is

9) LAN stands for:

10) Bps is short for:

11) In the OSI model, encryption and decryption are functions of the________?

12) A collection of computers connected together to share resources and informal called:

13) A computer network in which all computers have equal status and no one have control over others:

14) A device that is used to connect two computers using telephone line is called:

15) Which of the following is communications device

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

17) An advantage of synchronous over asynchronous transmission is:

18) The message sent on a ____ network can take any of several possible paths from source to destination

19) Which of the following is an internet protocol?

20) Which protocol works on the concepts of ring topology and a token?

21) Each set of bit pattern is called:

22) FTP stands for

23) The technology of long-distance communication is known as:

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

25) A set collection of a large number of computers all over the world connected to one another is

26) Cabling on a linear bus topology can be extended using which of following?

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

28) NIC stands for:

29) IBM stands for:

30) Digital signals are commonly known as:

31) The ITU was formerly known as:

32) Which of the following is NOT a category of network?

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

34) The diameter of fiber optical cable is:

35) Project 802 defines standard for which layers of the OSI model:

36) A lab with twenty computers and a laser printer is an example_____ of area network

37) Analog signal is measured in:

38) The top most layer of the OSI is called:

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

40) Which of the following topology is used by Ethernet protocol?

41) Digital signal represents a sequence of values.

42) In_______a node listens to bus for specified time and waits until node has completed transmission

43) Which of the following is the fastest communication mode

44) ISDN stands for:

45) Mail services are available to network users through the_______layer.

46) Terminators are used in______ topology:

47) The layer that provides services that directly support user application:

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

49) Which one is NOT a De-jure standard?

50) DSL stands for

51) The most commonly used LAN protocol is:

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

53) FTP facility is used to:

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

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

56) OSI stands for:

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

58) Data link layer lies between the physical layer and the_______layer

59) How many pairs of computers can simultaneously communicate on Ethernet LAN?

60) Which LAN access method resolves the contention between two or more nodes by collision detection

61) Terminal is a:

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

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

64) Which layer is responsible to establish, maintain and terminate user connection

65) A LAN is a combination of:

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

67) An important property of fiber optic cable is:

68) Select unguided media from the following:

69) Which type of network covers a small area?

70) Computer transmit data in the form of codes.

71) Which of the following is a De Facto standard?

72) EBCDIC is a

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

74) Which of following protocols are properly researched, designed and finally published as a standard?

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

76) Data is transmitted block by block in: .

77) Route determination can be identified by:

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

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

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

81) A network that covers a limited geographic distance such as an office is called:

82) The layer is used to control how a bit-streams of data is sent and received over physical medium

83) What layer of OSI models performs data compression?

84) De Jure means

85) MAN stands for:

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

87) The bottem most layer of the OSI is called:

88) Which of the following technique uses modulation?

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

90) Which of the following devices uses parallel transmission?

91) The types.of signals can be:

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

93) How many types of network standard are there

94) An example of non-numerical data is:

95) A combination of both client/server and peer-to-peer network is_______network

96) The physical layout of a network is known as:

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

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

99) Television and radio broadcasts are examples of:

100) The music and speech.represent: