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 unix profile contains

BFL,

1 9172

in unix echo is used for

BFL, BirlaSoft, Patni,

10 28373

Which of following is used for back-up files? (a) compress (b) Tar (c) make (d) all the above

Cadence,

1 5635

what does find command do ?

Cadence,

3 8983

The UNIX shell is.... a).does not come with the rest of the system b).forms the interface between the user and the kernal c) does not give any scope for programming d) deos not allow calling one program from with in another e) all of the above

IBM,

2 13567

The very first process created by the kernal that runs till the kernal process is haltes is

IBM,

6 17919

In the process table entry for the kernel process, the process id value is a) 0 b) 1 c) 2 d) 255 e) it does not have a process table entry

Aspire, IBM, Saigun Technologies,

4 23206

Which of the following API is used to hide a window a) ShowWindow b) EnableWindow c) MoveWindow d) SetWindowPlacement e)None of the above

IBM,

2 20656

The command grep first second third /usr/you/myfile a) prints lines containing the words first, second or third from the file /usr/you/myfile b) searches for lines containing the pattern first in the files second, third, and /usr/you/myfile and prints them c) searches the files /usr/you/myfiel and third for lines containing the words first or second and prints them d) replaces the word first with the word second in the files third and /usr/you/myfile e) None of the above

IBM,

4 15010

Windows NT- What NT stands for?

Mascot,

9 16030

One Gigabyte =?( 2 power30 , 2 power 20 ,2 power 10 none)

Mascot,

4 11582

DMA - abbrevation (Direct Memory Access,Discrete memory Access,Disk memoryaccess)

Mascot,

4 7534

what is FAT?.

Campus Interview, Mascot, MIS, Nile Bank,

12 20540

interprocess command in unix be achieved by a)pipes b)messages c)semaphores d)shared memory e)all

Mascot,

2 8015

How does the scheduler know the time how it should be scheduled.

Motorola,

1 8182

Un-Answered Questions { Operating Systems }

What is unix mtime?

874

How do I fix rundll32 exe in windows 10?

773

Which linux shell is best?

846

Which interfaces are implemented by enumset?

838

Does linkedhashset allow duplicates?

836

How do I find system information?

910

What are the gpc and the gpt?

846

What is the best linux operating system?

819

What is the property of unix?

982

How do I view an exe file?

890

What is a subtree in data structures?

918

Is there any advantage to handling the signal, rather than just ignoring it and checking for the EPIPE error? Are there any useful parameters passed to the signal catching function?

1364

What is ‘ps’ command for?

1139

Tell me the difference between the character array and a string.

898

How do you check if a file is corrupted windows 10?

767

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