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Computer Aptitude

BASIC COMPUTER KNOWLEDGE MCQs

Total Questions : 1975 | Page 57 of 198 pages
Question 561.  the physical layer translates logical communication requests from the ______ into hardware specific operations.
  1.    data link layer
  2.    network layer
  3.    trasnport layer
  4.    application layer
 Discuss Question
Answer: Option A. -> data link layer
Explanation :
Question 562.  when collection of various computers seems a single coherent system to its client, then it is called
  1.    computer network
  2.    distributed system
  3.    both (A) and (B)
  4.    none of these
 Discuss Question
Answer: Option B. -> distributed system
Explanation :
Question 563.  the physical layer translates logical communication requests from the ______ into hardware specific operations.
  1.    data link layer
  2.    network layer
  3.    trasnport layer
  4.    application layer
 Discuss Question
Answer: Option A. -> data link layer
Explanation :
Question 564.  two devices are in network if
  1.    a process is running on both devices
  2.    a process in one device is able to exchange information with a process in another device
  3.    PIDs of the processes running of different devices are same
  4.    none of these
 Discuss Question
Answer: Option B. -> a process in one device is able to exchange information with a process in another device
Explanation :
Question 565.  a single channel is shared by multiple signals by
  1.    analog modulation
  2.    digital modulation
  3.    multiplexing
  4.    none of these
 Discuss Question
Answer: Option C. -> multiplexing
Explanation :
Question 566.  when collection of various computers seems a single coherent system to its client, then it is called
  1.    computer network
  2.    distributed system
  3.    both (A) and (B)
  4.    none of these
 Discuss Question
Answer: Option B. -> distributed system
Explanation :
Question 567.  a single channel is shared by multiple signals by
  1.    analog modulation
  2.    digital modulation
  3.    multiplexing
  4.    none of these
 Discuss Question
Answer: Option C. -> multiplexing
Explanation :
Question 568.  the physical layer translates logical communication requests from the ______ into hardware specific operations.
  1.    data link layer
  2.    network layer
  3.    trasnport layer
  4.    application layer
 Discuss Question
Answer: Option A. -> data link layer
Explanation :
Question 569.  wireless transmission can be done via
  1.    radio waves
  2.    microwaves
  3.    infrared
  4.    all of the above
 Discuss Question
Answer: Option D. -> all of the above
Explanation :
Question 570.  the portion of physical layer that interfaces with the media access control sublayer is called
  1.    physical signalling sublayer
  2.    physical data sublayer
  3.    physical address sublayer
  4.    none of these
 Discuss Question
Answer: Option A. -> physical signalling sublayer
Explanation :

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