COMPUTER SYSTEM ARCHITECTURE MCQS PART 93

COMPUTER SYSTEM ARCHITECTURE MCQS PART 93

1. ______ semaphore provides mutual exclusion for accesses to the buffer pool and is  initialized to the value:
a. Mutex            
b. Mutual         
c. Memory           
d. All of these
ANSWER A

2. Which processes access and manipulate the shared data concurrently:
a. Micro processes        
b. Several processes    
c. Both   
d. None of these
ANSWER B

3. Which section is basically a sequence of instruction with a clear indication of beginning and end for updating shared variables:
a. Racing section 
b. Critical section
c. Both 
d. None of these
ANSWER B

4. In which section only one process is allowed to access the shared variable and all other have to wait:
a. Critical section 
b. Racing section
c. Entry section
d. Remainder section
ANSWER A

5. Which are the problem of critical section:
a. Mutual exclusion   
b. Progress    
c. Bounded wait   
d. All of these
ANSWER D

6. Which section refer to the code segment of a process that is executed when the process intends to enter its critical section:
a. Critical section  
b. Entry section   
c. Reminder section
d. None of these
ANSWER B

7. Which section refer to the code segment where a shared resource is accessed by the process:
a. Reminder section  
b. Entry section    
c. Both    
d. None of these
ANSWER D

8. Which section is the remaining part of a process’s code:
a. Racing section      
b. Critical section    
c. Entry section  
d. Reminder section
ANSWER D

9. How many conditions for controlling access to critical section:
a. 2    
b. 4          
c. 3              
d. 5
ANSWER C

10. Which instruction provides a direct  hardware support to mutual exclusion:
a. SP instruction    
b. TS instruction       
c. Both     
d. None of these
ANSWER B