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 9273

in unix echo is used for

BFL, BirlaSoft, Patni,

10 28766

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

Cadence,

1 5774

what does find command do ?

Cadence,

3 9184

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 13721

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

IBM,

6 18155

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 23418

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 20812

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 15245

Windows NT- What NT stands for?

Mascot,

9 16516

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

Mascot,

4 11783

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

Mascot,

4 7740

what is FAT?.

Campus Interview, Mascot, MIS, Nile Bank,

12 21128

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

Mascot,

2 8124

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

Motorola,

1 8265

Un-Answered Questions { Operating Systems }

What Happens when you execute a program?

1110

What is ias? How it works?

861

What are the 4 kinds of sentences with examples?

1034

Can you have 2 operating systems on one computer?

994

What are different command to check ram, process and hdd of linux machine?

1051

In what data structures are pointers applied?

977

How do I install dll files?

952

i m putting 2.6yrs fake exp in oracle/unix production support i want to know some real time issues,like tell me the challenging issue u ever faced? my project is credit card application plz help me!

13374

Where is the windows folder on my computer?

859

Compare Queue and Topic ?

1107

What is difference between free and available memory in linux?

1000

What is merge command in unix?

1514

Define linear data structures?

1008

What are two examples of dos attacks?

521

How many gb is windows 7 ultimate 64 bit?

827

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