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 the difference between Array and Arraylist?

1016

A pair of redundant systems are operating, how would you ensure that when one of them goes down, the other one will take over its operation?

DELL,

1058

What are the different replacement policies ?

Wipro,

1067

What first program that the computer runs when the power is turn on?

Arigo Infotech,

984

Why do we need inter process communication?

1165

One starts counting from 0 to max and the other stars from max to 0. Which one executes fast.

958

Where the user store resides in OS?

969

How you can Kill the Session by force?

996

What do you know about system model?

C DAC, CDAC,

1056

Define a good platform along with its qualities.

Wipro,

1096

What is a semaphore? What are the different types of semaphores?

Wipro,

1068

What is the feature of real time os?

1076

Explain what you mean by memory alignment.

TCS,

967

List advantages and disadvantages of dynamic memory allocation vs. static memory allocation.?

1108

Tell me something about the concept of memory leak?

1027

Un-Answered Questions { Operating Systems }

What is the best scripting language for windows?

785

How do you check if a stack is empty or not?

785

What is the importance of windows operating system?

760

What is a spinlock in linux?

835

How do I combine c and d drives in windows 10?

804

Which sort algorithm is best?

842

Define hcmos?

895

How do you reformat a hard drive?

846

What is the major difference between Thread.start() & Thread?run() method?

1045

How can I tell if a program is 64 bit?

850

What are the uses of windows operating system?

802

How do I check the health of my laptop windows 10?

904

Describe tree database. Explain its common uses.

922

Why we use LINUX?

851

Is unix portable?

943

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