Embedded Systems MCQ Questions and Answers Quiz

11. What are the two major sections in a coprocessor?

  1. control unit and numeric control unit
  2. integer unit and control unit
  3. floating point unit and coprocessor unit
  4. coprocessor unit and numeric control unit

12. What can be done for the fine grain protection of the processor?

  1. add extra description bit
  2. add error signal
  3. add wait stage
  4. remains unchanged

13. What does ADS indicate in 8250 UART?

  1. address signal
  2. address terminal signal
  3. address strobe signal
  4. address generating signal

14. What does API stand for?

  1. address programming interface
  2. application programming interface
  3. accessing peripheral through interface
  4. address programming interface

15. What does SPI stand for?

  1. serial parallel interface
  2. serial peripheral interface
  3. sequential peripheral interface
  4. sequential port interface

16. What does the processor fetches from the EPROM if the board is powered?

  1. reset vector
  2. ready vector
  3. start vector
  4. acknowledge vector

17. What does UART stand for?

  1. universal asynchronous receiver transmitter
  2. unique asynchronous receiver transmitter
  3. universal address receiver transmitter
  4. unique address receiver transmitter

18. What happens to the interrupts in an interrupt service routine?

  1. disable interrupt
  2. enable interrupts
  3. remains unchanged
  4. ready state

19. What happens when 8 bits are transferred in the SPI?

  1. wait statement
  2. ready statement
  3. interrupt
  4. remains unchanged

20. What is 80/20 rule?

  1. 80% instruction is generated and 20% instruction is executed
  2. 80% instruction is executed and 20% instruction is generated
  3. 80%instruction is executed and 20% instruction is not executed
  4. 80% instruction is generated and 20% instructions are not generated
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