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Operating Systems Interview Questions
Questions Answers Views Company eMail

How to sort a file of size 2N bytes, if I have N bytes of memory?

Yahoo,

2 6319

what is the different between B-tree and B+ tree.

Syntel,

8 44512

how to search an element in sorted linked list with time complexity is O(log n).

Wipro,

3 13878

how to find the number of possible tree in the given tree.

Persistent, TCS, Wipro,

12 27982

How can i know my Filesystem and its current usage in my prod UNIX system?

HCL, IBM,

4 14010

What is the difference between NTFS & FAT File systems

CA,

6 12935

In general what is paging? and segmaentation?

Intelligroup,

2 7194

how to install operating system through USB pen drive ?

HCL, Oracle,

1 5931

what basically a system call is?

Infosys,

3 7611

Hi We have upgraded our sun machine from solaris 9 to solaris 10. Before upgradation the date command output(Solaris 9) Wed Oct 13 09:45:21 IST 2010 But after upgradation the output for date is as below(solaris 10). Wednesday, October 13, 2010 9:46:14 AM IST Looks like I need to change LC_TIME=C. can you please help me how to change it for permanently

IBM, Wipro,

2203

Hello Everyone, One of our servers is showing a strange issue, let me paste the output Code: root # uptime 4:37pm 3 users, load average: 0.00, 0.04, 0.04 Its been running since months but you can see after time there isn't any output like up 191 days(s). Even the who command with b and r option isn't giving any output. Code: root # who -b root # root # who -r root # the date command displays correct output. I am not sure but is it because someone has played with utmpx and wtmpx files, is reboot the only solution we have. Can anyone help us since we don't intend to reboot the server for such a reason and also no one has complained till yet.

1 4050

hi frnds I created sparse root zone, in that zone when i try to change the passwd it is giving permission denied. what is the reason and how to chnage the root passwd in the zone. can u please explain the query.

TCS,

2 5569

In TOP command, can you please explain what is the three numbers reported as part of the load average output "load average: 11.57, 9.84, 8.26"

IBM,

2 5440

I have an interview in Qatar Petroleum for Solaris System Engineer position. Please provide all the technical questions about Solaris OS.

1 4467

Hello this is gaurav garg I have completed BCA. plz TEll me how will ask question in interview.

2220


Un-Answered Questions { Operating Systems }

What are types of threads?

1124


How do you kill a program in windows 10?

898


Which sorting is used in collections sort?

872


How do I remove winlogon exe virus windows 7?

893


What is the explanation for protection fault?

1044


What is a shell in linux?

2298


How do I get to the start menu?

964


How do I list directories in dos?

571


What is unix explain its architecture?

991


What is truncate linux?

961


What are the different types of hash functions?

946


Why is treeset sorted?

984


What is the use of recvfrom(2) Function?

1518


Will windows update erase files?

836


How do I manually install a driver in windows 7?

871