Operating System Basics Questions and Answers

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Q31
A tree sturctured file directory system
  • A allows easy storage and retrieval of file names
  • B is a much debated unecessary feature
  • C is not essential when we have millions of files
  • D none of the above
Answer: Option A
Q32
The high paging activity is called ________.
  • A Inter process communication
  • B Thrashing
  • C Context Switch
  • D None of the above
Answer: Option B
Q33
The Hardware mechanism that enables a device to notify the CPU is called __________.
  • A Polling
  • B Interrupt
  • C System Call
  • D None of the above
Answer: Option B
Q34
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
Q35
Which of the following is crucial time while accessing data on the disk?
  • A Seek time
  • B Rotational time
  • C Transmission time
  • D Waiting time
Answer: Option A
Q36
Process State is a part of
  • A Process Control block
  • B Inode
  • C File Allocation Table
  • D None of the above
Answer: Option A
Q37
Who is called a supervisor of computer acitvity ?
  • A CPU
  • B Operating system
  • C Control unit
  • D Application Program
Answer: Option B
Q38
Virtual memory is __________.
  • A An extremely large main memory
  • B An extremely large secondary memory
  • C An illusion of extremely large main memory
  • D A type of memory used in super computers
Answer: Option C
Q39
The kernel keeps track of the state of each task by using a data structure called __
  • A Process control block
  • B User control block
  • C Memory control block
  • D None of the above
Answer: Option A
Q40
Which of the following disk scheduling techniques has a drawback of starvation ?
  • A SCAN
  • B SSTF
  • C FCFS
  • D LIFO
Answer: Option B

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