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 9254

in unix echo is used for

BFL, BirlaSoft, Patni,

10 28715

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

Cadence,

1 5753

what does find command do ?

Cadence,

3 9160

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 13706

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

IBM,

6 18126

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 23390

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 20783

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 15196

Windows NT- What NT stands for?

Mascot,

9 16472

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

Mascot,

4 11768

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

Mascot,

4 7716

what is FAT?.

Campus Interview, Mascot, MIS, Nile Bank,

12 21046

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

Mascot,

2 8115

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

Motorola,

1 8259

Un-Answered Questions { Operating Systems }

Additional information and options for the rundll32.exe file?

823

What are the main features of unix operating system?

947

What is “nohup” used for?

959

What is the definition of windows operating system?

794

What does logical volume manager(lvm) mean?

Write a program to reverse a link list.

927

What do I need to ensure before deploying an application via a group policy ?

871

What is dos and its function?

464

How do I open dos in windows 10?

835

Write a command to display a file’s contents in various formats?

1209

How to remove tsrs and startup programs?

1099

How long does upgrade from windows 7 to 10 take?

783

Write a command that will allow a unix system to shut down in 15 minutes, after which it will perform a reboot.

1239

Explain the triple channel architecture?

1306

How do I open a dll file in windows 7?

839

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