Operating System Basics Questions and Answers

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Q61
A thread
  • A is a lightweight process where the context switching is low
  • B is a lightweight process where the context swithching is high
  • C is used to speed up paging
  • D none of the above
Answer: Option A
Q62
Using Priority Scheduling algorithm, find the average waiting time for the following set of processes given with their priorities in the order: Process : Burst Time : Priority respectively . P1 : 10 : 3 , P2 : 1 : 1 , P3 : 2 : 4 , P4 : 1 : 5 , P5 : 5 : 2.
  • A 8 milliseconds
  • B 8.2 milliseconds
  • C 7.75 milliseconds
  • D 3 milliseconds
Answer: Option B
Q63
Routine is not loaded until it is called. All routines are kept on disk in a relocatable load format. The main program is loaded into memory & is executed. This type of loading is called _________
  • A Static loading
  • B Dynamic loading
  • C Dynamic linking
  • D Overlays
Answer: Option C
Q64
In the running state
  • A only the process which has control of the processor is found
  • B all the processes waiting for I/O to be completed are found
  • C all the processes waiting for the processor are found
  • D none of the above
Answer: Option A
Q65
The Purpose of Co-operating Process is __________.
  • A Information Sharing
  • B Convenience
  • C Computation Speed-Up
  • D All of the above
Answer: Option D
Q66
The kernel of the operating system remains in the primary memory because ________.
  • A It is mostly called (used)
  • B It manages all interrupt calls
  • C It controls all operations in process
  • D It is low level
Answer: Option A
Q67
The process related to process control, file management, device management, information about system and communication that is requested by any higher level language can be performed by __________.
  • A Editors
  • B Compilers
  • C System Call
  • D Caching
Answer: Option C
Q68
Which of the following disk scheduling techniques has a drawback of starvation ?
  • A SCAN
  • B SSTF
  • C FCFS
  • D LIFO
Answer: Option B
Q69
Multiprogramming systems ________.
  • A Are easier to develop than single programming systems
  • B Execute each job faster
  • C Execute more jobs in the same time
  • D Are used only on large main frame computers
Answer: Option C
Q70
Under multiprogramming, turnaround time for short jobs is usually ________ and that for long jobs is slightly ___________.
  • A Lengthened; Shortened
  • B Shortened; Lengthened
  • C Shortened; Shortened
  • D Shortened; Unchanged
Answer: Option B

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