OPERATING SYSTEM MCQS PART 07

OPERATING SYSTEM MCQS PART 07

1. Resolution of externally defined symbols is performed by
(A) Linker       
(B) Loader         
(C) Compiler       
(D) Editor
Ans: (A)

2. Relocatable programs
(A) cannot be used with fixed partitions
(B) can be loaded almost anywhere in memory
(C) do not need a linker       
(D) can be loaded only at one specific location
Ans: (B)

3. Page stealing
(A) is a sign of efficient system    
(B) is taking page frames other working sets
(C) should be the tuning goal     
(D) is taking larger disk spaces for pages paged out
Ans: (B)

4. The total time to prepare a disk drive mechanism for a block of data to be read from is its
(A) latency         
(B) latency plus transmission time
(C) latency plus seek time   
(D) latency plus seek time plus transmission time
Ans: (C)

5. To avoid race condition, the maximum number of processes that may be simultaneously inside the critical section is
(A) zero    
(B) one      
(C) two   
(D) more than two
Ans: (B)

6. The memory allocation scheme subject to “external” fragmentation is
(A) segmentation                        
(B) swapping 
(C) pure demand paging            
(D) multiple fixed contiguous partitions
Ans: (A)

7. Page fault frequency in an operating system is reduced when the
(A) processes tend to the I/O-bound 
(B) size of pages is reduced
(C) processes tend to be CPU-bound 
(D) locality of reference is applicable to the process
Ans: (D)

8. In which of the following page replacement policies Balady’s anomaly occurs?
(A) FIFO        
(B) LRU       
(C) LFU       
(D) NRU
Ans: (A)

9. Which of the following are language processors?
(A) Assembler       
(B) Compiler     
(C) Interpreter           
(D) All of the above
Ans: (D)

10. Virtual memory can be implemented with
(A) Segmentation    
(B) Paging     
(C) None           
(D) all of the above
Ans: (D)