Data Transmission Network - Multiple choice questions and answers

Questions

46 A signal with a power of 10 mw is transmitted through a co-axial cable. Signal level measured at the other end of the cable is 5 mw. What is the loss of the signal strength ?

A -3 dB

B 3 dB

C 2 dB

D -2 dB

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Answer: Option [C]

47 The size of ATM cell in octets is

A 48

B 5

C 64

D 53

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Answer: Option [D]

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48 The range of first octet of class B IP address is

A 0 to 127

B 128 to 191

C 192 to 223

D 224 to 239

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Answer: Option [B]

49 Sending an e-mail requires

A Connection-oriented approach with timing relationship between sender and receiver

B Connection-less approach with timing relationship between sender and receiver

C Connection-oriented approach with no timing relationship between sender and receiver

D Connection-less approach with no timing relationship between sender and receiver

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Answer: Option [C]

50 An application generates a traffic stream that requires ATM cells to be transmitted at almost uniform time spacing and expects that the receiver will receive the stream with a small delay jitter. This application requires

A CBR

B GBR

C UBR

D ABR

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