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Computer Aptitude

COMPUTER ARCHITECT DESIGN MCQs

Total Questions : 66 | Page 3 of 7 pages
Question 21. . Asynchronous means ?
  1.    Not in step with the elapse of time
  2.    Not in step with the elapse of address
  3.    Not in step with the elapse of data
  4.    Not in step with the elapse of control
 Discuss Question
Answer: Option A. -> Not in step with the elapse of time
Question 22. . Which technique has one or more control signal for acknowledgment that is used for intimation ?
  1.    Ftp
  2.    Ping
  3.    Strobe
  4.    Handshaking
 Discuss Question
Answer: Option D. -> Handshaking
Question 23. . _________ 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
 Discuss Question
Answer: Option D. -> Strobe
Question 24. . Which exception is also known software interrupt ?
  1.    Trap
  2.    Call
  3.    System Call
  4.    All of above
 Discuss Question
Answer: Option C. -> System Call
Question 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
 Discuss Question
Answer: Option C. -> Interrupt driven I/O
Question 26. . A keyboard has which type of asynchronous transfer mode ?
  1.    Serial
  2.    Parallel
  3.    Optimal
  4.    Joint
 Discuss Question
Answer: Option A. -> Serial
Question 27. . Which table handle store address of interrupt handling subroutine ?
  1.    Vector table
  2.    Symbol link table
  3.    Interrupt vector table
  4.    None of above
 Discuss Question
Answer: Option C. -> Interrupt vector table
Question 28. . User programs interact with I/O devices through ?
  1.    Operating System
  2.    Hardware
  3.    Buses
  4.    Processor
 Discuss Question
Answer: Option A. -> Operating System
Question 29. . Which interrupt establishes a priority over the various sources to determine which request should be entertained first ?
  1.    Polling
  2.    Daisy chaining
  3.    Priority interrupt
  4.    All of above
 Discuss Question
Answer: Option C. -> Priority interrupt
Question 30. . Which technique is used that identifies the highest priority resource by means of software ?
  1.    Daisy chaining
  2.    Polling
  3.    Priority
  4.    Chaining
 Discuss Question
Answer: Option B. -> Polling

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