COMPUTER SYSTEM ARCHITECTURE MCQS PART 92

COMPUTER SYSTEM ARCHITECTURE MCQS PART 92

1. PCB stands for:  Process control block

2. ____ gets activated whenever the process encounters a busy condition code:
a. Wait instruction 
b. Signal instruction
c. Both a & b
d. None of these
ANSWER A

3. _____ are new and mutually exclusive operation:
a. Wait instruction
b. Signal instruction
c. Both a & b
d. None of these
ANSWER C

4. _______ gets activated whenever a  process leaves the critical region and the flag is set  to false:
a. Wait instruction
b. Signal instruction
c. Both a & b
d. None of these
ANSWER B

5. Which represent an abstraction of many important ideas in mutual exclusion:
a. Process synchronous
b. Process system 
c. Semaphores
d. All of these
ANSWER C

6. A semaphore is a ______ integer variable upon which two atomic operations wait and signal are defined:
a. Negative integer          
b. Non- Negative integer 
c. Positive integer            
d. None of these
ANSWER B

7. Which operation is executed as soon as a process exits from a critical section:
a. Wait     
b. Signal     
c. Both a & b       
d. None of these
ANSWER B

8. CCR stands for: Conditional critical region

9. ________ is a control structure in a high-level programming language:
a. CPU          
b. ALU          
c. DDR      
d. CCR
ANSWER D

10. The exclusion between processes is ensured by a third semaphore called______:
a. Mutex     
b. Mutual     
c. Memory       
d. All of these
ANSWER A