Aiou Workshop 5403| Test 4

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

2) LAN stands for:

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

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

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

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

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

8) NIC stands for:

9) Which of the following is NOT a benefit of computer networks?

10) Data link have two separate sub-layers known as:

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

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

13) Which of the following is the fastest communication mode

14) Terminators are used in______ topology:

15) Internet surfing is an example of:

16) EBCDIC is a

17) The companies that use networks can save time and money because network allow users to share:

18) People on LAN can share:

19) ASCII code was.developed by:

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

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

22) The communication channels can be divided into_categories:

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

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

25) Mobile phone(Cellular) systems often use:

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

27) An example of non-numerical data is:

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

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

30) Unicode uses:

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

32) Which of the following devices uses parallel transmission?

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

34) An important property of fiber optic cable is:

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

36) An advantage of synchronous over asynchronous transmission is:

37) Digital signal represents a sequence of values.

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

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

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

41) What type of network is the Internet?

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

43) Which network covers a large area:

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

45) The layer lies between the network layer and the application layer

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

47) The diameter of fiber optical cable is:

48) In _________topology, the entire network goes down if the backbone cable fails

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

50) How many modes of data communication are available?

51) A device that connect multiple network using similar or different protocol is:

52) BCD stands for:

53) OSI stands for:

54) Analog signal is measured in:

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

56) FDDI is a __________network.

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

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

59) What is another term for unguided media?

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

61) The types.of signals can be:

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

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

64) Which of the following is an internet protocol?

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

66) In a typical LAN, each computer on the network is connected through:

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

68) Digital signals are commonly known as:

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

70) Sound,light and radio waves are examples of

71) BCD code is a_

72) Many networks include a central computer called:

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

74) Which of the following technique uses modulation?

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

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

77) Each computer on a network is called a:

78) Bps is short for:

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

80) The services on the Internet include

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

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

83) The music and speech.represent:

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

85) Defacto means:

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

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

88) Which of the following is communications device

89) Two dissimilar networks can be connected by a:

90) Select unguided media from the following:

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

92) MAN stands for:

93) A computer network must contain at least number of computers:

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

95) In WAN, the communication software that allows a personal computer to appear as terminal is call

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

97) Data is transmitted block by block in: .

98) OSI model was created by:

99) Transmission from Earth to satellite is called:

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