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

2) Which network covers a large area:

3) Each set of bit pattern is called:

4) Ethernet, Token bus and Token Ring have been defined by:

5) Each computer on a network is called a:

6) The set of rules to exchange data in a communications network is called:

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

8) Sound,light and radio waves are examples of

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

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

11) Which communication technique can transmit the data over long distance?

12) Which of the following is NOT a type of protocol?

13) The communication across WAN occurs using:

14) DSL stands for

15) What is another term for unguided media?

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

17) The network architecture that allows every computer to act as client as well as a server is:

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

19) In star topology, the central device is called:

20) FTP stands for

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

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

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

24) Which type of network covers a small area?

25) Which is the most common LAN topology?

26) How many modes of data communication are available?

27) Which problem occurs when two workstations on shared Ethernet try to access LAN at the same time

28) Star topology is less expensive than:

29) What layer of OSI models performs data compression?

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

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

32) One or more computers connected to a hub is called:

33) The layer that is in between of session and application layer is

34) De Jure means

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

36) How many characters can Unicode represcnt?

37) Which of the following consists of two insulated copper wires twisted together?

38) An example of non-numerical data is:

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

40) A collection of related web pages is called:

41) Digital signals are commonly known as:

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

43) What is another term for guided media?

44) Computer networks are the convergence of two important technologies

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

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

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

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

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

50) The most commonly used LAN protocol is:

51) Which is NOT a LAN protocol?

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

53) Frequency is measured in:

54) Digital signal represents a sequence of values.

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

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

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

58) MAN stands for:

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

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

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

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

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

64) The music and speech.represent:

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

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

67) Modem stands for:

68) The types.of signals can be:

69) Computer transmit data in the form of codes.

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

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

72) Analog signal is measured in:

73) A network that transmits data over citywide distance faster than LAN is:

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

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

76) OSI model was created by:

77) BCD code is a_

78) Which of the following is an internet protocol?

79) The ITU was formerly known as:

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

81) Which of the following is a governing body to approve the network standards?

82) The network that connects different campuses of a college in city is an example of:

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

84) A network that covers a large geographic distance such as a country is called a:

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

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

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

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

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

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

91) A network that places all nodes on a single cable is called:

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

93) How many types of network standard are there

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

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

96) The topology used for a small number of computers is called:

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

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

99) ISDN stands for:

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