Operating System Basics Questions and Answers

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Q111
In memory management , a technique called as paging, physical memory is broken into fixed-sized blocks called ___________.
  • A Pages
  • B Frames
  • C Blocks
  • D Segments
Answer: Option B
Q112
The state of a process after it encounters an I/O instruction is __________.
  • A Ready
  • B Blocked/Waiting
  • C Idle
  • D Running
Answer: Option B
Q113
In one of the deadlock prevention methods, impose a total ordering of all resource types, and require that each process requests resources in an increasing order of enumeration. This voilates the _______________ condition of deadlock
  • A Mutual exclusion
  • B Hold and Wait
  • C Circular Wait
  • D No Preemption
Answer: Option C
Q114
Which of the following file name extension suggests that the file is Backup copy of another file ?
  • A TXT
  • B COM
  • C BAS
  • D BAK
Answer: Option D
Q115
The degree of Multiprogramming is controlled by
  • A CPU Scheduler
  • B Context Switching
  • C Long-term Scheduler
  • D Medium term Scheduler
Answer: Option C
Q116
The higher versions of operating systems are so written that programs designed for earlier versions can still be run. What is it called ?
  • A Up gradiability
  • B Upward mobility
  • C Universality
  • D Upward Compatibility
Answer: Option D
Q117
A scheduling algorithm is fair
  • A if no process faces starvation
  • B if a process is starved, detect it and run it with high priority
  • C if it uses semaphores
  • D only if a queue is used for scheduling
Answer: Option A
Q118
A critical region
  • A is a piece of code which only one process executes at a time
  • B is a region prone to deadlock
  • C is a piece of code which only a finite number of processes execute
  • D is found only in Windows NT operation system
Answer: Option A
Q119
Semaphore can be used for solving __________.
  • A Wait & signal
  • B Deadlock
  • C Synchronization
  • D Priority
Answer: Option C
Q120
The operating system of a computer serves as a software interface between the user and the ________.
  • A Hardware
  • B Peripheral
  • C Memory
  • D Screen
Answer: Option A

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