Aiou Workshop 5403| Test 4

1) An advantage of synchronous over asynchronous transmission is:

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

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

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

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

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

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

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

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

10) How many modes of data communication are available?

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

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

13) Which of the following is communications device

14) ASCII code was.developed by:

15) A LAN is a combination of:

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

17) EBCDIC is a

18) Internet surfing is an example of:

19) Computer networks are the convergence of two important technologies

20) Mobile phone(Cellular) systems often use:

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

22) Which is NOT a LAN protocol?

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

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

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

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

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

28) People on LAN can share:

29) The most commonly used LAN protocol is:

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

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

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

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

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

35) How many characters can Unicode represcnt?

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

37) Computer transmit data in the form of codes.

38) ISDN stands for:

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

40) Transmission media are usually categorized as_

41) What is another term for unguided media?

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

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

44) Television and radio broadcasts are examples of:

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

46) Which of the following technique uses modulation?

47) The process of transferring a file from our own computer to the remote computer on a network:

48) A device used to connect similar networks is called:

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

50) Each computer on a network is called a:

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

52) Star topology is less expensive than:

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

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

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

56) LAN stands for:

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

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

59) The_________layer is the layer closest to the transmission medium

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

61) DSL stands for

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

63) The primary difference between a LAN and a WAN is:

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

65) What is another term for guided media?

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

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

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

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

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

71) Modem stands for:

72) The services on the Internet include

73) What layer of OSI models performs data compression?

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

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

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

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

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

79) Digital signal represents a sequence of values.

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

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

82) A set of documents stored on computer permanently connected with Internet is:

83) MAN stands for:

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

85) Terminal is a:

86) Which is the most common LAN topology?

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

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

89) BCD stands for:

90) The second layer of OSI model is

91) The layer that is concerned with addressing and routing is called:

92) How many types of network standard are there

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

94) FTP facility is used to:

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

96) Which of the following devices uses parallel transmission?

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

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

99) An important property of fiber optic cable is:

100) Terminators are used in______ topology: