Aiou Workshop 5403| Test 4

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

2) What layer of OSI models performs data compression?

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

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

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

6) Mobile phone(Cellular) systems often use:

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

8) Segmentation and reassembly is the responsibility of:

9) Select unguided media from the following:

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

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

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

13) Star topology is less expensive than:

14) Which communications medium requires line-of-sight?

15) DSL stands for

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

17) OSI stands for:

18) Each set of bit pattern is called:

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

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

21) What type of network is the Internet?

22) Computer transmit data in the form of codes.

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

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

25) De Jure means

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

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

28) FDDI is a __________network.

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

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

31) OSI model was created by:

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

33) BCD stands for:

34) How many characters can Unicode represcnt?

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

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

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

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

39) NIC stands for:

40) The services on the Internet include

41) Route determination can be identified by:

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

43) Analog signal is measured in:

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

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

46) Which is the most common LAN topology?

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

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

49) An important property of fiber optic cable is:

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

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

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

53) The_________layer is the layer closest to the transmission medium

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

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

56) Which of the following is communications device

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

58) ASCII code was.developed by:

59) EBCDIC is a

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

61) Cabling on a linear bus topology can be extended using which of following?

62) FTP facility is used to:

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

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

65) Layer that is responsible for transferring frames is

66) FTP stands for

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

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

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

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

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

72) The communication across WAN occurs using:

73) The process of transferring a file from remote computer to local computer on network is called

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

75) Digital signal represents a sequence of values.

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

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

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

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

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

81) Two dissimilar networks can be connected by a:

82) OSI reference model has:

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

84) IBM stands for:

85) The process of converting analog to digital signal is known as:

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

87) LAN does not use:

88) Full-duplex communication is made. possible by the.devices known as:

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

90) Which of the following devices uses parallel transmission?

91) Many networks include a central computer called:

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

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

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

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

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

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

98) The communication channels can be divided into_categories:

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

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