Aiou Workshop 5403| Test 4

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

2) How many characters can Unicode represcnt?

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

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

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

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

7) FTP facility is used to:

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

9) Bps is short for:

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

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

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

13) Transmission from Earth to satellite is called:

14) Digital signals are commonly known as:

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

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

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

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

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

20) The most commonly used LAN protocol is:

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

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

23) NIC stands for:

24) Internet surfing is an example of:

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

26) Many networks include a central computer called:

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

28) Data is transmitted block by block in: .

29) Unicode uses:

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

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

32) OSI model was created by:

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

34) What is another term for guided media?

35) The ITU was formerly known as:

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

37) Which of the following is the fastest communication mode

38) Which of the following topologies uses routers?

39) Digital signal represents a sequence of values.

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

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

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

43) Analog signal is measured in:

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

45) The_________layer is the layer closest to the transmission medium

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

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

48) Segmentation and reassembly is the responsibility of:

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

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

51) De Jure means

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

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

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

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

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

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

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

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

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

61) Which of the following technique uses modulation?

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

63) An advantage of synchronous over asynchronous transmission is:

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

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

66) Layer that is responsible for transferring frames is

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

68) Which of the following is an internet protocol?

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

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

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

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

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

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

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

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

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

78) A collection of related web pages is called:

79) What is another term for unguided media?

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

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

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

83) OSI stands for:

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

85) Each computer on a network is called a:

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

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

88) The types.of signals can be:

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

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

91) LAN does not use:

92) Computer transmit data in the form of codes.

93) People on LAN can share:

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

95) ASCII code was.developed by:

96) Terminators are used in______ topology:

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

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

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

100) The services on the Internet include