Aiou Workshop 5403| Test 4

1) The act of listening to the medium for a message is called:

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

3) Frequency is measured in:

4) An advantage of synchronous over asynchronous transmission is:

5) Modem stands for:

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

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

8) How many modes of data communication are available?

9) LAN does not use:

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

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

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

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

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

15) Each computer on a network is called a:

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

17) People on LAN can share:

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

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

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

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

22) A collection of related web pages is called:

23) What type of network is the Internet?

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

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

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

27) Unicode uses:

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

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

30) Two dissimilar networks can be connected by a:

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

32) What is another term for guided media?

33) Star topology is less expensive than:

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

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

36) EBCDIC is a

37) Which of the following is the fastest communication mode

38) Television and radio broadcasts are examples of:

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

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

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

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

43) OSI reference model has:

44) Which of the following is NOT a network topology?

45) Each set of bit pattern is called:

46) Internet surfing is an example of:

47) The most commonly used LAN protocol is:

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

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

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

51) The layer that defines the formats the data uses as it in transmitted on the communication line

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

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

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

55) De Jure means

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

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

58) ISDN stands for:

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

60) What is another term for unguided media?

61) Which of the following is an internet protocol?

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

63) Digital signals are commonly known as:

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

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

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

67) Computer networks are the convergence of two important technologies

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

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

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

71) The music and speech.represent:

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

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

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

75) BCD stands for:

76) Terminal is a:

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

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

79) A LAN protocol in which all computers and devices on the network pass a special signal known as:

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

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

82) Mobile phone(Cellular) systems often use:

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

84) A LAN is a combination of:

85) Analog signal is measured in:

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

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

88) Which of the following devices uses parallel transmission?

89) The services on the Internet include

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

91) Layer that is responsible for transferring frames is

92) Segmentation and reassembly is the responsibility of:

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

94) The diameter of fiber optical cable is:

95) Digital signal represents a sequence of values.

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

97) Sound,light and radio waves are examples of

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

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

100) Which network covers a large area: