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

What is procedure to configure Mirror rootvg in HP-UX?

IBM, Microsoft,

2 10111

what are the reasons of rebooting the system?

HCL, HP, Mphasis,

11 19082

Is there any specific way to identify whether a data transfer done is a DMA(Direct Memory Access) transfer, thereby seeing the code snippets?

1934

Assume there is a global variable & a static global variable.Both gets memory allocated from the data segment. Then how does the visiblity of static global varible gets limited to the file alone (in which it gets declared) ???

Wipro,

2 11180

what is the process id for kernel process?

IBM, ITI, Military Engineer Services, Remo, TATA,

8 28273

what is the difference between user APIs and kernel system calls ?

NetApp,

1 9430

what are different ways the context switch happens from user to kernel space or vice-versa ?

Alcatel,

2641

Boot sequence of linux on embedded platform

NetApp,

3261

in solaris 10 nfs4 version is using ..in that any new daemons are available or not

2 5402

What is Domain?

4 7064

I am write dvd from dvd writer but problem is not write dvd only write cd . i try to writing data 3 g.b in dvd , dvd is ok ,dvd writer is ok, all sevices is ok , Find out the problem ?

2 4803

How do you use Unix for Backend Testing ?

Wipro,

1 9396

what are the run levels that are used in solaris10?

TCS,

10 14467

what are the bootable files in windows XP

10 13981

if /etc/system file file got deleted how you will regenerate from ok prompt ? in solaris and if and /etc/inittab file got deleted how you will regenerate from ok prompt and if both files got deleted how you will regenerate from ok prompt

Wipro,

3 8753

Un-Answered Questions { Operating Systems }

What are the main features of gui?

776

After how much time a computer running windows pe will automatically reboot?

1012

Why is arraylist not thread safe?

918

What is the dos command to delete a file?

581

What is a threaded binary tree? Explain its operation with example?

1137

Describe all the processes of the OS.

1188

Explain what is scheduling?

1045

How do you sort pseudocode?

878

How do I open the registry in windows xp?

806

Can treemap have duplicate values?

881

How do I know if my motherboard is 32 bit or 64 bit?

1009

Is linux free of cost?

1019

What is use of run command?

942

What is a job queue in windows operating system?

Why is msvcp140 dll missing?

877

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