Latest UNIX Aptitude Question SOLUTION: Q. Is the Process before and after the swap are the same? Give reason. A. Process before swapping is residing in the primary memory in its original form. The regions (text, data a

Follow Quotesrain

UNIX Question Papers:

UNIX Select Another Category Select Another Topic

Programming and Technical

UNIX Question Topics

HR Interview (1)

Interview(1)

Logical Reasoning (2)

Blood Relations(1)
Mathematical Reasoning(1)

Programming (6)

Basics(1)
Technical(2)

Advertisements

Previous Question: Q. What are the events done by the Kernel after a process is being swapped out from the main memory? A. When Kernel swaps the process out of the primary memory, it performs the following: Kernel decrements the Reference Count of each region of the process. If the reference count becomes zero, swaps the region out of the main memory, Kernel allocates the space for the swapping process in the swap device, Kernel locks the other swapping process while the current swapping operation is going on, The Kernel saves the swap address of the region in the region table Next Question: Q. What do you mean by u-area (user area) or u-block? A. This contains the private data that is manipulated only by the Kernel. This is local to the Process, i.e. each process is allocated a u-area.

(#M40029536) UNIX question unix Keep an EYE

Q. Is the Process before and after the swap are the same? Give reason.

A. Process before swapping is residing in the primary memory in its original form. The regions (text, data and stack) may not be occupied fully by the process, there may be few empty slots in any of the regions and while swapping Kernel do not bother about the empty slots while swapping the process out.
After swapping the process resides in the swap (secondary memory) device. The regions swapped out will be present but only the occupied region slots but not the empty slots that were present before assigning.
While swapping the process once again into the main memory, the Kernel referring to the Process Memory Map, it assigns the main memory accordingly taking care of the empty slots in the regions.: Asked In UNIX MAN (10 years ago); Unsolved; Is this Puzzle helpful? (2) (0) Submit Your Solution

Advertisements

Read Solution (0) :

Please Login to Read Solution.

Previous Question: Q. What are the events done by the Kernel after a process is being swapped out from the main memory? A. When Kernel swaps the process out of the primary memory, it performs the following: Kernel decrements the Reference Count of each region of the process. If the reference count becomes zero, swaps the region out of the main memory, Kernel allocates the space for the swapping process in the swap device, Kernel locks the other swapping process while the current swapping operation is going on, The Kernel saves the swap address of the region in the region table Next Question: Q. What do you mean by u-area (user area) or u-block? A. This contains the private data that is manipulated only by the Kernel. This is local to the Process, i.e. each process is allocated a u-area.

Login
Register

Sponsored Links

Advertisements

Challenger of the Day

no image

Dimple

India

Punjab

Time: 00:01:33

Points

19

Maths Quotes

An expert is a man who has made all the mistakes, which can be made, in a very narrow field.

Niels Bohr

If I am given a formula and I am ignorant of its meaning, it cannot teach me anything, but if I already know it what does the formula teach me?

Saint Augustine of Hippo

Placed User Comments

M4Math helped me a lot.

Vipul Chavan 3 years ago

Thanks m4 maths for helping to get placed in several companies.
I must recommend this website for placement preparations.

yash mittal 4 years ago

2510K+Registerd user
1757K+Engineers
753K+MBA Asprirant
3K+Enginnering College
250+Company Exam
150K+Interview Questions

All rights are reserved to @m4maths.com