Computer System Architecture Questions Answers

• 22. __ is a single control line that informs destination unit that a valid is available on the bus ?

  1. Ping
  2. Token
  3. Handshake
  4. Strobe

  Answer And Explanation

  Answer: Option D

  Explanation:

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• 23. Which technique has one or more control signal for acknowledgement that is used for intimation ?

  1. Ftp
  2. Ping
  3. Strobe
  4. Handshaking

  Answer And Explanation

  Answer: Option D

  Explanation:

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• 24. A keyboard has which type of asynchronous transfer mode ?

  1. Serial
  2. Parralel
  3. Optimal
  4. Joint

  Answer And Explanation

  Answer: Option A

  Explanation:

  In serial transfer each bit is sent one after the another in a sequence of event and requires just one line.

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• 25. Which technique helps processor to run a program concurrently with input output operations ?

  1. IOP
  2. DMA
  3. Interrupt driven I/O
  4. DCA

  Answer And Explanation

  Answer: Option C

  Explanation:

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• 26. Which exception is also known software interrupt ?

  1. Trap
  2. Call
  3. System Call
  4. All of above

  Answer And Explanation

  Answer: Option C

  Explanation:

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• 27. User programs interact with I/O devices through ?

  1. Operating System
  2. Hardware
  3. Buses
  4. Processor

  Answer And Explanation

  Answer: Option A

  Explanation:

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• 28. Which table handle store address of interrupt handling subroutine ?

  1. Vector table
  2. Symbol link table
  3. Interrupt vector table
  4. None of above

  Answer And Explanation

  Answer: Option C

  Explanation:

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