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This is a computer science engineering quiz on the operating systems, which includes questions based on virtual memory, use of virtual memory, advantages of virtual memory, etc.
_____ is the concept in which a process is copied into the main memory from the secondary memory according to the requirement.
The primary purpose of an operating system is:
Which of the following operating system reads and reacts in actual time?
Consider the following page reference string. 1 2 3 4 2 1 5 6 2 1 2 3 7 6 3 2 1 2 3 6 For FIFO page replacement algorithms with 4 frames, the number of page faults is? For FIFO page replacement algorithms with 4 frames, the number of page faults is?
Consider the following page reference string. 1 2 3 4 2 1 5 6 2 1 2 3 7 6 3 2 1 2 3 6 For FIFO page replacement algorithms with 3 frames, the number of page faults is? For FIFO page replacement algorithms with 3 frames, the number of page faults is?
Because of virtual memory, the memory can be shared among ____________.
Processes
Threads
Instructions
None of the mentioned
The pager concerns with the ____________.
Individual page of a process
Entire process
Entire thread
First page of a process
Swap space exists in ____________.
Primary memory
Secondary memory
CPU
None of the mentioned
When a program tries to access a page that is mapped in address space but not loaded in physical memory, then ____________.
Segmentation fault occurs
Fatal error occurs
Page fault occurs
No error occurs
The Banker’s algorithm is used:
To rectify deadlock
To detect deadlock
To prevent deadlock
To solve deadlock
You can use print manage window:
To check status of files in the print queue
To cancel the print job
To interrupt printing
All of the above
All of the following are TRUE regarding virtual memory except:
Any amount of RAM can be allocated to virtual memory
The setting for the amount of hard disk drive space to allocate virtual memory can be manually change
This temporary storage is called the swap file or page file
Virtual memory is the physical space o the hard drive
When a subroutine is called ____________.
It defines a new locality
It is in the same locality from where it was called
It does not define a new locality
None of the mentioned
A program is generally composed of several different localities, which _____ overlap.
May
Must
Do not
Must not
If working set window is too small ____________.
It will not encompass entire locality
It may overlap several localities
It will cause memory problems
None of the mentioned
