Aiou Workshop 5403| Test 4

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

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

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

4) What is another term for guided media?

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

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

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

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

9) Typically, data transfer rate in LAN are of the order of:

10) Terminators are used in______ topology:

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

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

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

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

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

16) People on LAN can share:

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

18) Which is NOT a LAN protocol?

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

20) An advantage of synchronous over asynchronous transmission is:

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

22) Each computer on a network is called a:

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

24) A collection of related web pages is called:

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

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

27) Which of the following is the fastest communication mode

28) Bps is short for:

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

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

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

32) Unicode uses:

33) Television and radio broadcasts are examples of:

34) Frequency is measured in:

35) DSL stands for

36) Star topology is less expensive than:

37) OSI model was created by:

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

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

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

41) Digital signal represents a sequence of values.

42) Layer that is responsible for transferring frames is

43) An example of non-numerical data is:

44) ASCII code was.developed by:

45) The ITU was formerly known as:

46) Computer networks are the convergence of two important technologies

47) Which of the following devices uses parallel transmission?

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

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

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

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

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

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

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

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

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

57) Which of the following is communications device

58) What type of network is the Internet?

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

60) Sound,light and radio waves are examples of

61) The_________layer is the layer closest to the transmission medium

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

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

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

65) Mobile phone(Cellular) systems often use:

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

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

68) ISDN stands for:

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

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

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

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

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

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

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

76) Select unguided media from the following:

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

78) LAN does not use:

79) The second layer of OSI model is

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

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

82) Computer transmit data in the form of codes.

83) Transmission media are usually categorized as_

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

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

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

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

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

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

90) The types.of signals can be:

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

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

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

94) How many types of network standard are there

95) OSI stands for:

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

97) OSI reference model has:

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

99) Defacto means:

100) EBCDIC is a