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

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Operating Systems Interview Questions

Questions Answers Views Company eMail

Write Hirarchy of ADS...?

2 7676

The statement “Every multiprogramming system is not a time sharing system” is correct or not. Justify your answer with the help of logic and example.

InterSoft,

1 7852

Hi All, Q. I have one log file that log file contains application message but the application message in log file not append any date value. so after 1 to 2 date that file is big size , I want to delete contents only that was appended before 4 days ago from that single file and rest of the file contents would be remains same.

HP,

2 5230

I have been working on one thread which manage and control a couple of circular buffers. It has api for other thread to access. As the thread grows bigger and bigger, I split it as 3 to 4 threads which need to share common buffers, and also their api could be used by other threads, (not these three threads). Inside api, I also allow other threads to access these three threads' common buffers(more than one buffer). SO I have to use mutex to avoid race condition . But I found mutex will be everwhere in all the threads when they update the common buffer. I am wondering whether I could reduce mutex usage(more mutex will hure my system performance). any ideas for how to reduce mutex usage meanwhile to avoid race condition. Thanks

2 5689

I have created one user account.I want to delete that. what can i do?How can i switch to admin account.?

HSBC,

3 7030

In FSMO role PDC Emulator acts as Primary Domain Controller for Legacy servers like NT 4.0 BDC's in our domain.If i have all 2003 servers no BDC's such case will it perform any other kind of services in our domain?

Accenture,

3 7777

29. How to display top 10 users Who | head -10 | wc –w

TCS,

4 11763

How can i recover the linux system after it was crashed. I want step by step process.

Wipro,

1 7508

My root password has been changed, how can i enter into the system without root password?

6 9334

What is the command to see all the processes are working in the last 30 days?

9 14392

How can i recover the linux system after it was crashed by step by step process..

IBM,

3 17217

please tell me what is graphics card ,version , type slot

2003

please tell me what is graphics card ,version , type slot

CMS,

2015

in which situation we use sjf scheduling algorithem??

2 5993

I want software development lifecycle of windows XP software?

2433

Un-Answered Questions { Operating Systems }

Why interprocess communication is required?

987

What is windows 8?

848

Can I upgrade to windows 10 from xp?

769

How do I see background jobs in linux?

818

How do I manage taskbar?

880

How can I see all ip addresses on my network using cmd?

962

Is there a windows 13 operating system?

859

How to delete cookies in windows xp?

935

discuss the procedures to evaluate disk excess time

2589

Explain the working of compression?

What is taskkill command?

918

What is netstat command in linux?

1041

Explain how to kill a particular process in windows?

951

Which shell do you assign to a pop3 mail-only account?

835

Is list an array?

834

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