Aiou Workshop 5403| Test 4

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

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

3) A modem allows computers to access other computers through following types of connection

4) Mobile phone(Cellular) systems often use:

5) Which of the following is not a communication media?

6) Analog signal is measured in:

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

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

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

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

11) An important property of fiber optic cable is:

12) The ITU was formerly known as:

13) OSI reference model has:

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

15) Which type of network covers a small area?

16) Terminators are used in______ topology:

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

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

19) Ethernet, Token bus and Token Ring have been defined by:

20) Defacto means:

21) .Which transmission type transmits data one character at a time

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

23) DSL stands for

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

25) How many types of network standard are there

26) Which problem occurs when two workstations on shared Ethernet try to access LAN at the same time

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

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

29) Sound,light and radio waves are examples of

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

31) Television and radio broadcasts are examples of:

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

33) Which of the following topologies uses routers?

34) Internet surfing is an example of:

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

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

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

38) IBM stands for:

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

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

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

42) Which of the following is an internet protocol?

43) Digital signals are commonly known as:

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

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

46) Select unguided media from the following:

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

48) Transmission from Earth to satellite is called:

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

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

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

52) OSI model was created by:

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

54) BCD code is a_

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

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

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

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

59) The types.of signals can be:

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

61) ISDN stands for:

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

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

64) FTP facility is used to:

65) Computer networks are the convergence of two important technologies

66) The communication across WAN occurs using:

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

68) An example of non-numerical data is:

69) The communication channels can be divided into_categories:

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

71) Layer that is responsible for transferring frames is

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

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

74) Which of the following technique uses modulation?

75) What is another term for guided media?

76) Star topology is less expensive than:

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

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

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

80) BCD stands for:

81) Data is transmitted block by block in: .

82) Which of the following is communications device

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

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

85) Which of the following coding schemes primarily.used by IBM?

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

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

88) A LAN is a combination of:

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

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

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

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

93) Digital signal represents a sequence of values.

94) Frequency is measured in:

95) The layer that provides services that directly support user application:

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

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

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

99) The diameter of fiber optical cable is:

100) Route determination can be identified by: