Operating System Basics Questions and Answers

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Q71
Multiprocessing ________.
  • A Make the operating system simpler
  • B Allows multiple processes to run simultaneously
  • C Is completely understood by all major computer vendors
  • D Allows the same computer to have the multiple processors
Answer: Option D
Q72
Which is not the state of the process ?
  • A Blocked
  • B Running
  • C Ready
  • D Privileged
Answer: Option D
Q73
A set of resources' allocations such that the system can allocate resources to each process in some order, and still avoid a deadlock is called ________.
  • A Unsafe state
  • B Safe state
  • C Starvation
  • D Greeedy allocation
Answer: Option B
Q74
The principle of locality of reference justifies the use of ________.
  • A Virtual Memory
  • B Interrupts
  • C Main memory
  • D Cache memory
Answer: Option D
Q75
What is the first step in performing an operating system upgrade ?
  • A Partition the drive
  • B Format the drive
  • C Backup critical data
  • D Backup old operating system
Answer: Option C
Q76
The technique, for sharing the time of a computer among several jobs, which switches jobs so rapidly such that each job appears to have the computer to itself, is called ________.
  • A Time Sharing
  • B Time out
  • C Time domain
  • D Multitasking
Answer: Option A
Q77
In a virtural memory environment
  • A segmentation and page tables are stored in the cache and do not add any substantial overhead
  • B slow down the computer system considerable
  • C segmentation and page tables are stored in the RAM
  • D none of the above
Answer: Option C
Q78
If all page frames are initially empty, and a process is allocated 3 page frames in real memory and references its pages in the order 1 2 3 2 4 5 2 3 2 4 1 and the page replacement is FIFO, the total number of page faults caused by the process will be __________.
  • A 10
  • B 7
  • C 8
  • D 9
Answer: Option D
Q79
Situations where two or more processes are reading or writing some shared data and the final results depends on the order of usage of the shared data, are called ________.
  • A Race conditions
  • B Critical section
  • C Mutual exclusion
  • D Dead locks
Answer: Option A
Q80
When two or more processes attempt to access the same resource a _________ occurs.
  • A Critical section
  • B Fight
  • C Communication problem
  • D Race condition
Answer: Option D

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