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Data Transmission Network - Multiple Choice Questions and Answers | Page-5

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Download in pdf multiple choice questions(mcqs) & answers on Data Transmission Network. These general awareness quiz objective questions answers include mcqs on encryption system, ARQ, NAK etc.
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(21) Which of the following is not a bounded media of transmission of RF energy.
[A] UTP
[B] STP
[C] Laser beam
[D] Fiber optic cable

Comment

Answer: Option [C]
(22) The information to be communicated in a communication is the ________
[A] message
[B] medium
[C] protocol
[D] none of these

Comment

Answer: Option [A]

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(23) Networks are judged by
[A] Security
[B] Reliability
[C] Performance
[D] All of the above

Comment

Answer: Option [D]
(24) In ARQ and NAK
[A] is sent by the recipient if the message contains an error
[B] is sent by the recipient if the message was received without error
[C] means that the sender should continue with sending the next message
[D] is sent by the sender at the same time as it sends a data packet

Comment

Answer: Option [B]
(25) A brute force attack against an encryption system:
[A] is known as RC4
[B] is also known as 3DES
[C] always uses the Rijndael algorithm
[D] tries to gain access by trying every possible key

Comment

Answer: Option [D]

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DATA COMMUNICATION & COMPUTER NETWORKS – MULTIPLE CHOICE QUESTIONS AND ANSWERS | 250 MCQS

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