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

How will you check the disk performance?

Wipro,

2 6291

What are performance tool used

1 4144

Which service assign port no dynamically

1 4017

As a user how he can change is passwd with root privilege.

2 5058

What is default permission of /etc/passwd , /etc/shadow files

Accel Frontline,

7 35769

What is default permission of files and directory?

4 6100

What is UMASK

2 5063

Defalut value for umask

3 5886

Explain setuid, setgid and stickybit

2 7254

How to set passwd never expire for a user

4 13100

How to find the kernel bit version or architecture

5 8882

How to set the time zion

3 4940

How to enable and disable the dtlogin

1 3880

How to change the hostname and Ethernet address in single command

2 5680

How do you add the disk without reboot the server?

2 5468

Un-Answered Questions { Operating Systems }

mount -r is used to mount a file in read only mode. State Whether True or False?

914

How can I tell what programs are running in the background on my computer?

1101

What is the virtual desktop in linux?

940

Define a relation?

938

How do I combine folders into one folder?

962

What is difference between unix and windows?

981

What is make command in linux?

1095

How do I find my windows 10 license key?

829

How do you configure mandatory profiles?

849

Can ram cause blue screen?

982

You attempt to delete a file called sales.mem using the rm command but the command fails. What could be the problem?

1081

What are the unique features of aix ?

What are linux file systems?

923

What are the common directory management commands in unix?

1110

Differentiate between an array and an arraylist.

1068

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