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

Windows (3805)
Linux (2255)
Unix (1304)
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 a mission critical system?

CSE,

2396

What is the important aspect of a real-time system?

3384

If two processes which shares same system memory and system clock in a distributed system, what is it called?

IBM,

2 8078

What is the state of processor, when a process is waiting for some event to occur?

3 7960

What do you mean by deadlock?

2 6005

Explain the difference between micro-kernel and macro-kernel? Give an examples of micro-kernel and macro-kernel?

1 9474

When would you choose bottom-up methodology?

2647

When would you choose Top-down methodology?

2392

Why paging is used?

2 12476

Which is the best page replacement algorithm and why? How much time is spent usually in each phases and why?

3 14489

Difference between Primary storage and secondary storage?

3 25962

What is multi-tasking, multi-programming,multi-threading?

TCS,

9 48130

What is software life cycle?

2 5322

what is Demand Paging?

2 7822

What is Thrashing?

IBM, Wipro,

19 69018

Un-Answered Questions { Operating Systems }

Is cleaning the registry necessary?

912

Explain booting the system in operating system.

1100

How long should a windows startup repair take?

841

How do you explain bubble sort?

933

Can you just explain about memory management in iOS?

1101

What are the differences between ntfs4 and ntfs5?

1257

How do I create a desktop icon?

992

Where is rundll32 located?

943

Can you be hacked just by opening an email?

819

What is a bubble sort and how do you perform it?

1083

How many times is merge sort called?

961

Is it ok to delete old windows updates?

949

What is bubble sort and quick sort?

998

Is ‘du’ a command? If so, what is its use?

1211

explain readers-writers problem?

4161

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