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 stored at /lib/modules ?

NetApp,

2 9017

What is atomic function / atomic variable ?

Broadcom,

1 11947

if one of the critical section code (linked list) is under ISR & another one in kernel thread ? How you will synchronize for this critical section code ?

NetApp,

4 9712

Why bind system call is required in socket programming ? what is it;s Significance ?

Cavium Networks, IBM,

3 13916

Q. what is the difference between socket & port ?

Cavium Networks,

2 11056

what is memory mapped / IO mapped ? Which calls used for this to access any hardware address in linux device driver ?

Broadcom,

3 9641

c program to implement the unix or linux command to implement ls -l >output.txt

Arihant,

5 22123

WHAT IS THE MEANING IF AIX

IBM,

5 9302

what is use of boot -a

TCS,

3 7505

What are the IPC techniques ? explain each

Datasol, emc2,

3 16935

What is the difference between a shell variable that is exported and the one that is not exported?

2 6379

What is the Process Runs behind CTRL+ALT+DEL on Windows server

Accenture,

4 9745

What Happens when RID Master Down?

Accenture,

4 17479

DHCP Process and which Protocol DHCP uses

Accenture,

2 7244

Hello, this is parameswar from Hyderabad. I have 2 sun ultra 10 workstations. while I trai to install solaris 10 os from cdrom on both systems some times it gives message as "con't load disk labe" and some times it gives some warnigs and reboot suddenly. So could you please tell me how to install os 9 or 10 on my ultra 10 workstations.

3 5574

Un-Answered Questions { Operating Systems }

Is kernel a os?

923

What does xfce mean in linux?

861

What are server threads?

842

in a multiprogramming and time-sharing environment,several user share the system simultaneously. this situation can result in various security problems a.discuss two such problems b.how can we ensure the same degree of security in a time-share machine as in a dedicated machine?

19860

What is the difference between hashmap and linkedhashmap?

923

Where are windows update files stored?

836

Explain the advantage of executing a process in background?

931

What are awk commands?

1163

What is difference between post and patch?

1105

If we are terminated at the middle of the program execution in UNIX,what will happen to the program, it will continue running r terminate r the o/p will be send to your mail?

1435

What is difference between swap -l & swap -s?

1050

What happens if system32 is deleted?

898

Explain some of the fundamental concepts of unix?

862

What are the different memories you know about? Which of them takes the shortest access time?

1141

Explain briefly about linker and its functioning?

1047

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