OPERATING SYSTEM MCQS PART 06

OPERATING SYSTEM MCQS PART 06

1. An analysis, which determines the syntactic structure of the source statement, is called
(A) Sementic analysis                
(B) process analysis
(C) Syntax analysis               
(D) function analysis
Ans: (C)
2. Action implementing instruction’s meaning are a actually carried out by
(A) Instruction fetch       
(B) Instruction decode    
(C) instruction execution
(D) Instruction program
Ans: (C)

3. The field that contains a segment index or an internal index is called
(A) target datum     
(B) target offset
(C) segment field
(D) fix dat
Ans: (A)

4. A program in execution is called
(A) process    
(B) function      
(C) CPU         
(D) Memory
Ans: (A)

5. Jobs which are admitted to the system for processing is called
(A) long-term scheduling          
(B) short-term scheduling
(C) medium-term scheduling        
(D) queuing
Ans: (A)

6. A set of techniques that allow to execute a program which is not entirely in memory is called
(A) demand paging                 
(B) virtual memory
(C) auxiliary memory             
(D) secondary memory
Ans: (B)

7. SSTF stands for
(A) Shortest-Seek-time-first scheduling      
(B) small – small-time-first             
(C) simple-seek-time-first                 
(D) small-simple-time-first scheduling
Ans: (A)
8. Before proceeding with its execution, each process must acquire all the resources it needs is called
(A) hold and wait
(B) No pre-emption
(C) circular wait 
(D) starvation
Ans: (A)

9. Virtual memory is
(A) simple to implement
(B) used in all major commercial operating systems
(C) less efficient in utilization of memory
(D) useful when fast I/O devices are not available
Ans: (B)

10. Relocation bits used by relocating loader are specified by
(A) Relocating loader itself        
(B) Assembler or Translator
(C) Macro processor               
(D) Both (A) and (B)
Ans: (B)