Aiou Workshop 5403| Test 4

1) Sound,light and radio waves are examples of

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

3) The most commonly used LAN protocol is:

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

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

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

7) Digital signal represents a sequence of values.

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

9) FTP stands for

10) Which of the following topologies uses routers?

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

12) Transmission media are usually categorized as_

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

14) The second layer of OSI model is

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

16) signal is a continuous electrical signal in the form of wave.

17) Start/stop bits are not required in this type of transmission.

18) Frequency is measured in:

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

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

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

22) Route determination can be identified by:

23) Terminators are used in______ topology:

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

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

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

27) What layer of OSI models performs data compression?

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

29) The communication across WAN occurs using:

30) The_________layer is the layer closest to the transmission medium

31) People on LAN can share:

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

33) An important property of fiber optic cable is:

34) OSI model was created by:

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

36) Unicode uses:

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

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

39) Which of the following devices uses parallel transmission?

40) DSL stands for

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

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

43) Data is transmitted block by block in: .

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

45) Which network covers a large area:

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

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

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

49) Modem stands for:

50) Transmission from Earth to satellite is called:

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

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

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

54) A collection of related web pages is called:

55) How many characters can Unicode represcnt?

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

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

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

59) What is another term for unguided media?

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

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

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

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

64) ASCII code was.developed by:

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

66) Analog signal is measured in:

67) What type of network is the Internet?

68) LAN stands for:

69) The ITU was formerly known as:

70) Two dissimilar networks can be connected by a:

71) LAN does not use:

72) OSI stands for:

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

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

75) Which of the following transmission media is used in LAN?

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

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

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

79) Which type of network covers a small area?

80) Digital signals are commonly known as:

81) How many types of network standard are there

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

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

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

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

86) Computer transmit data in the form of codes.

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

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

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

90) How many pairs of computers can simultaneously communicate on Ethernet LAN?

91) Defacto means:

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

93) The types.of signals can be:

94) Which is NOT a LAN protocol?

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

96) FTP facility is used to:

97) An advantage of synchronous over asynchronous transmission is:

98) NIC stands for:

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

100) The communication channels can be divided into_categories: