Aiou Workshop 5403| Test 4

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

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

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

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

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

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

7) The second layer of OSI model is

8) Frequency is measured in:

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

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

11) Many networks include a central computer called:

12) Defacto means:

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

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

15) Which is the most common LAN topology?

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

17) The communication channels can be divided into_categories:

18) How many modes of data communication are available?

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

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

21) Segmentation and reassembly is the responsibility of:

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

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

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

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

26) Each set of bit pattern is called:

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

28) Computer networks are the convergence of two important technologies

29) Transmission media are usually categorized as_

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

31) Which of the following topologies uses routers?

32) How many characters can Unicode represcnt?

33) Two dissimilar networks can be connected by a:

34) The music and speech.represent:

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

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

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

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

39) LAN stands for:

40) Television and radio broadcasts are examples of:

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

42) NIC allows direct connection to:

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

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

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

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

47) Unicode uses:

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

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

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

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

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

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

54) Which of the following coding schemes uses 4-bit code?

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

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

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

58) IBM stands for:

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

60) MAN stands for:

61) Analog signal is measured in:

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

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

64) How many types of network standard are there

65) Which is NOT a LAN protocol?

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

67) ASCII code was.developed by:

68) ISDN stands for:

69) Which of the following is an internet protocol?

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

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

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

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

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

75) Satellite transmission stations that can both send and receive messages are called:

76) Terminators are used in______ topology:

77) Select unguided media from the following:

78) Computer transmit data in the form of codes.

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

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

81) BCD code is a_

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

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

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

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

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

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

88) FTP facility is used to:

89) The communication across WAN occurs using:

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

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

92) Terminal is a:

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

94) What is another term for guided media?

95) DSL stands for

96) What type of network is the Internet?

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

98) An important property of fiber optic cable is:

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

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