Aiou Workshop 5403| Test 4

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

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

3) Which of the following is communications device

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

5) OSI stands for:

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

7) The communication channels can be divided into_categories:

8) Modem stands for:

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

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

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

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

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

14) Two dissimilar networks can be connected by a:

15) Each computer on a network is called a:

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

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

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

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

20) Which of the following technique uses modulation?

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

22) Each set of bit pattern is called:

23) FTP stands for

24) Which of the following is an internet protocol?

25) Which is the most common LAN topology?

26) Terminal is a:

27) Many networks include a central computer called:

28) IBM stands for:

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

30) Which of the following devices uses parallel transmission?

31) An advantage of synchronous over asynchronous transmission is:

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

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

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

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

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

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

38) Bps is short for:

39) What is another term for guided media?

40) Internet surfing is an example of:

41) Data is transmitted block by block in: .

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

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

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

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

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

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

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

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

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

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

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

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

54) Frequency is measured in:

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

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

57) Unicode uses:

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

59) OSI model was created by:

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

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

62) The ITU was formerly known as:

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

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

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

66) Analog signal is measured in:

67) NIC stands for:

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

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

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

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

72) FTP facility is used to:

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

74) Which type of network covers a small area?

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

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

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

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

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

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

81) ISDN stands for:

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

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

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

85) The services on the Internet include

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

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

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

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

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

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

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

93) Route determination can be identified by:

94) LAN does not use:

95) OSI reference model has:

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

97) LAN stands for:

98) How many characters can Unicode represcnt?

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

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