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

In my linux machine, i lost /etc/passwd file and /etc/shadow file, then how can i recover it?

Google,

5 18079

Difference between swap partition and swap file?

IIHT, TATA, Wipro,

4 22360

How to monitor ports in a linux machine, with single command?

7 13771

What is the status code 403,404 represented in apache server?

2 7219

I want to see how many interfaces(ethernet cards) are working using single command?

8 12568

I want to built a fire wall using iptables. My condition is " inbound to 192.168.0.2 with a port of 80 from 172.168.0.1 should accept"

NetEnrich,

6 13131

I know ssh, telnet, dns,apache all are worked on TCP/UDP but i want to know any one service which are working on UDP only?

Wipro,

10 16103

What is the impact if DNS Server fails?

Mphasis,

2 12358

What is AD/AM in Windows2003?

Accenture, ASD Lab, Mphasis,

1 5688

I just changed the server name, then onwards the Volume manager is not loading. Please tell me what might be the reason?

Wipro,

2 6824

Q. If we transfer 100 files by ftp to remote server, how to know the files are successfully transfer or some file are not transferred ?

IBM, IMB,

6 14575

how to add an user without using "useradd" command in solaris10?

HCL, HP,

4 10210

how many default groups are there in solaris10?what are they?

HP, Patni,

5 9636

Write a code to connect Hardware interrupt to ISR...?

iNet, Wipro,

1 9855

How to set dedicated IP in Zoning ?

Accel,

2 7445

Un-Answered Questions { Operating Systems }

How do I download linux os?

856

Does windows 10 come with a text editor?

855

How to enter bios in windows xp?

939

What do you mean by an Array?

940

What does awk stand for?

1085

Can we use any class as map key?

871

What are the dangers of file sharing?

982

Can you please explain the difference between trap and trapdoor?

1074

How do you do binary search?

877

What is ipc and its types?

989

What dll file contains?

924

How does dynamic memory allocation help in managing data?

1518

What are the command line arguments?

864

Which is the best book for data structures and algorithms?

885

What does the dummy header in linked list contain?

1102

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