Operating Systems Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Windows (3805)
Linux (2255)
Unix (1343)
Solaris (894)

RTOS (43)
Bulnex (4)
Operating Systems General Concepts (1242)
Data Structures (2039)

Operating Systems Interview Questions

Questions Answers Views Company eMail

List at least three things that a running process might do that would cause the scheduler not to move it to the ready state when it stops running.

2 7568

What is an advantage of a large scheduling quantum? What is a disadvantage?

1 8757

Measurements of a certain system have shown that the average process runs for a time T before blocking on I/O. A process switch requires a time S, which is eﬀectively wasted (overhead). The CPU’s eﬃciency is the fraction of its time its spends executing user programs, i.e., executing user processes. For round robin scheduling with quantum Q, give a formula for the CPU eﬃciency for each of the following: (a) Q = ∞ (b) Q > S + T (c) S 4353

Why do inode number start from 1 and not 0 ?

3 13876

is it possible to break the grub password in linux

6 11069

How can you backup and restore DC

IBM,

4 11416

what is ls -ltd?

HCL,

5 15858

how make a bootable dick

Accenture, HCL, Wipro,

2878

what is a solaris toolkit

1 4289

i installed clustering packages.When i try to run it getting LUCI error...what is it..??

2377

How to create NULL files of specific size in solaris ?

IBM,

9 14754

How to change rsc ip in sun V490?

Wipro,

4 17386

what is the difference betweenh the NFS and FTP?

IBM,

4 41755

what are the different types of Backups..?

IBM, SDG,

6 13735

what is NIS Server...?

IBM,

2 6103

Un-Answered Questions { Operating Systems }

Should I install 32bit or 64bit windows 10?

877

How to join a wireless network in windows xp?

901

Why socket programming is used?

873

What is the benefit of linux?

867

What is lilo how is it useful in linux?

832

How do I run an exe file in dos?

553

What are the types of bulleted list?

843

How you will create new folder / directories and how to remove file and folder in linux?

926

How do I get windows 8.1?

860

In a two node cluster i have typed #hastart command in one node.The cluster is starting in second node also,what is going in background?

2353

Do I need antivirus for linux?

851

Is freenas linux?

936

What is the difference between socket and port?

943

How do I open a dos command?

520

Is data structures and algorithms important?

932

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