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

ndd -get /dev/hme0 link-mode

Satyam, Wipro,

3 7108

solaris booting process.

HCL, Satyam, Wipro,

4 10220

what are bootloaders in solaris booting? bootblk, ufsboot

Satyam, Wipro,

3 11370

what are the daemons running In NIS? how to do u create NIS users and update Maps?

Satyam, Wipro,

5 13705

what is multihomed system?

Satyam, Wipro,

2 6878

What is the difference between semaphore and spinlock?

1 6552

what is the advantages of using Windows XP?

CTS,

6 11935

Tell me the 5 differences between Linux and Unix?

4 10479

What is the difference between RedHat linux and Fedora and Ubuntu?

CSC,

3 14332

What is 2 tier and 3 tier?

2 4132

1) What is an Virtual memory? 2) How do we test API's in both Windows/Linux/Unix? 3) What is an IOCTL? 4) How do you open a char device through API's? 5) What is major num/ minor num? 6) What is the max num for minor num? 7) Who gives you the major / minor numbers? 8) Reverse a string using recursive func. 9) fork/vfork/clone. 10) What does fork returns? 11) What is a zombie process? 12) What happens when a child completes before parent tries to wait for it? 13) Interrupt handlers, top-hdnl....?

TCS, Wipro,

2469

hi in our system not conected to sharing any folders why ? can u pls xplain

HCL,

10 14859

can we use cat command as an editor ..???

TCS,

12 23773

Explain the more details of vmstat output?

IBM,

2 10089

whenever you are creating a new user (while creating user every time) file /etc/passwd file inode number will be changed why????

Accel,

1 6370

Un-Answered Questions { Operating Systems }

How to log out in unix?

1014

How do you determine and set the path in unix?

1007

Which interfaces are implemented by hashmap?

981

Is norton better than windows defender?

1006

What are apk files?

939

What are merits and demerits of systems supporting multiple file structure and systems supporting a stream of bytes?

1084

Explain the use of date dos command?

543

How do I check my hard drive?

959

Is windows defender a firewall?

891

Do ssd ever fail?

898

Why it is said that searching a node in a binary search tree is efficient than that of a simple binary tree?

984

How can you find out how much memory linux is using?

883

How do I fix inaccessible boot device?

865

How do you unregister a dll?

909

What are bash scripts used for?

1090

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