Operating System Basics Questions and Answers

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Q541
Load time
  • A Where the process will reside in memory, then absolute code can be generated
  • B Where the process will reside in memory, then the compilermust generate relocatable memory
  • C If the process can be moved during its execution from one memory segment to another, then binding must be delayed until run time.
  • D all of the above.
Answer: Option B
Q542
Execution time
  • A Where the process will reside in memory, then absolute code can be memory, then absolute code can be generated
  • B Where the process will reside in memory, then the compiler must generate relocatable code
  • C if the process can be moved during the execution from one memory segment to another
  • D All of the above.
Answer: Option C
Q543
In dynamic loading
  • A for better memory utilization use dynamic loading
  • B It does not requires special support rom the operating system
  • C disadvantage is unused routine is never loaded
  • D all of the above
Answer: Option D
Q544
Fragmentation of the file system
  • A Occurs only if the file system i used improperly
  • B Can always be prevented
  • C Can be temporarily removed by compaction
  • D is the characterstic of all files system
Answer: Option C
Q545
Stub
  • A is included in the image for each library routine reference.
  • B is small piece of code that indicates how to locate the appropriate memory resident library routine
  • C how to load the library if the routine is not already present
  • D all of the above
Answer: Option D
Q546
Local replacement
  • A allows a process to select a replacement frame from the set of all frames.
  • B requires that each process selects from only its own set of allocated frames
  • C both (A) and (B) above
  • D none of the above
Answer: Option B
Q547
Thrashing
  • A the high paging activity
  • B is spending more time in paging than executing
  • C both A an B above
  • D none of the above
Answer: Option C
Q548
Thrashing can be avoided if
  • A the pages, belonging to the working set of the programs are in main memory
  • B the speed of CPU is increased
  • C the speed of I/O processor is increased
  • D all of the above
Answer: Option A
Q549
The memory allocation scheme subject to external fragmentation is
  • A Segmentation
  • B swapping
  • C pure demand paging
  • D multiple contiguous fixed partitions
Answer: Option A
Q550
In virtual memory systems, dynamci address translation
  • A is the hardware necessary to implement paging
  • B stores pagesat a secific ocation on a disk
  • C is useless when swapping is used
  • D is the part of the operating system paging algorithm
Answer: Option A

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