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 do chmod, chown, chgrp commands do?

1287

What is the command to find maximum memory taking process on the server?

1211

Explain mount and unmount command.

1215

What is the fork() system call?

933

What are the possible return values of kill() system call?

846

Explain the method of changing file access permission?

954

What are the pros of executing processes in the background?

876

What is the ‘nohup’ in unix?

918

Can you explain what does the kernel do?

921

What is alias mechanism? Explain.

985

Enlist common shells with their indicators.

1030

Name the key features of the korn shell.

991

Explain the following statement, “it is not advisable to use root as the default login.”

883

How can you edit a large file without opening it in unix?

894

How would you display the last line of a file?

915

Un-Answered Questions { Operating Systems }

Is it safe to delete system queued windows error reporting files?

933

What exactly does chkdsk do?

857

How do unix sockets work?

853

Is svchost exe safe?

827

How to use the socket(2) Function?

1512

Difference between calloc and malloc in data structures?

908

What is 0x00007b error?

830

How do I uninstall remnants of uninstalled programs?

933

Explain pre-order and in-order tree traversal.

936

What language are windows 10 apps written in?

797

How do we restore ad?

978

What do you mean by drop cap?

909

Why was linux created?

925

How can we use linux?

870

Can you dynamically allocate arrays in expanded memory?

1040

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