Aiou Workshop 5403| Test 4

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

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

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

4) ASCII code was.developed by:

5) Layer that is responsible for transferring frames is

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

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

8) Which of the following topologies uses routers?

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

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

11) Which of the following devices uses parallel transmission?

12) Which of the following is an internet protocol?

13) Sound,light and radio waves are examples of

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

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

16) OSI stands for:

17) LAN stands for:

18) The second layer of OSI model is

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

20) Computer networks are the convergence of two important technologies

21) Terminators are used in______ topology:

22) The services on the Internet include

23) Many networks include a central computer called:

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

25) Modem stands for:

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

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

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

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

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

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

32) Analog signal is measured in:

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

34) Route determination can be identified by:

35) IBM stands for:

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

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

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

39) Which is NOT a LAN protocol?

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

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

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

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

44) Each computer on a network is called a:

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

46) Bps is short for:

47) What layer of OSI models performs data compression?

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

49) FDDI is a __________network.

50) Defacto means:

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

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

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

54) Which type of network covers a small area?

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

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

57) Internet surfing is an example of:

58) Data is transmitted block by block in: .

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

60) OSI reference model has:

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

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

63) NIC stands for:

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

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

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

67) A LAN is a combination of:

68) Which of the following technique uses modulation?

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

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

71) How many characters can Unicode represcnt?

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

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

74) What is another term for unguided media?

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

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

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

78) The music and speech.represent:

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

80) EBCDIC is a

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

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

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

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

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

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

87) LAN does not use:

88) FTP stands for

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

90) ISDN stands for:

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

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

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

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

95) The communication channels can be divided into_categories:

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

97) Each set of bit pattern is called:

98) Typically, data transfer rate in LAN are of the order of:

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

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