Aiou Workshop 5403| Test 4

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

2) The communication across WAN occurs using:

3) NIC stands for:

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

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

6) What layer of OSI models performs data compression?

7) A LAN is a combination of:

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

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

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

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

12) Which of the following is the fastest communication mode

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

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

15) Segmentation and reassembly is the responsibility of:

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

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

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

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

20) How many characters can Unicode represcnt?

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

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

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

24) Frequency is measured in:

25) The transmission rate of modem can be measured in:

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

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

28) Modem stands for:

29) How many modes of data communication are available?

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

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

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

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

34) How many types of network standard are there

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

36) Terminators are used in______ topology:

37) BCD stands for:

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

39) OSI stands for:

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

41) The diameter of fiber optical cable is:

42) An advantage of synchronous over asynchronous transmission is:

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

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

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

46) The most commonly used LAN protocol is:

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

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

49) BCD code is a_

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

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

52) Sound,light and radio waves are examples of

53) Which kind of signal is mostly required by telephone lines?

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

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

56) OSI model was created by:

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

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

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

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

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

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

63) Select unguided media from the following:

64) Internet surfing is an example of:

65) Which of the following topologies uses routers?

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

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

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

69) Which of the following technique uses modulation?

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

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

72) Layer that is responsible for transferring frames is

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

74) ISDN stands for:

75) Each computer on a network is called a:

76) A device that is used to connect two computers using telephone line is called:

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

78) LAN does not use:

79) Which of the following is communications device

80) Which network covers a large area:

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

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

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

84) Digital signal represents a sequence of values.

85) Each set of bit pattern is called:

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

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

88) FDDI is a __________network.

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

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

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

92) LAN stands for:

93) Which is the most common LAN topology?

94) The second layer of OSI model is

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

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

97) Which transmission allows data to travel in one direction at a time?

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

99) An important property of fiber optic cable is:

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