Linux Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Linux Interview Questions

Questions Answers Views Company eMail

how to find out shared file&dir of FTP ? is there any command for find out are any other way we have? tell me with example?

IBM, NTA, Wipro,

3 7878

How to Create NIS Server And NIS Client? Explain With Example?

Cisco,

1 6353

How is the difference between ftp and sftp ? and explain how to create ftp server and sftp server with example ?

Bank Of America, IBM,

2 14855

which type of application can be run on linux? and explain what it the use of that?

IBM, Sony, Wipro,

1 6215

i am prepairing for 2+ yrs exp in oracle/unix production support, which topics should i cover in unix/linux and sql plz help

HCL,

2 30038

1.Diff between Active and passive FTP? 2.What is anacron? 3.Diff between yum update and yum install while doing for kernel? 4.root_squash and no_root_squash does what? 5.What are the commands will you execute to find a new hardware? 6.How will you find out a lun allocated from SAN? 7.What is the main diff in CaT5 and CAT6 cable, except the 1/100 and 1/1000? 8.What is stale NFS and How will you fix it? 9.What is kernel panic error? 10.How will you recover password and shadow file, in case both got deleted. Explain the steps? 11.Explain boot process 12.What is network bonding. Explain the steps? 13.What are the exit codes returned by FSCK? 14.What is LDOM? 15.Diff between block and character device?

Wipro,

2 5578

1. Where the History file can be located? 2. How will you harden the server? 3. Diff between Raid 1 and Raid 5? 4. What is the largest disk size can be used in LVM? 5. How will you remove a PV from lvm without any data loss? 6. What is the diff between ext3 and ext2 File system? 7. How we can use resize2fs, what is the purpose? 8. What is the purpose of LVM? Why it is used? 9. If the FS is in read-only mode, so we cannot create any file. How will you fix it? 10. How to create swap partition after OS installation? 11. What is the diff between ssh and telnet? 12. How to find out the dependency required for a package?

IBM,

3 8795

what is lilo?How it is useful in linux?

HCL, SofTec,

3 12644

I have a user name in /etc/vsftpd/user_list which is for blocking the ftp user. Now i blocked the user as well ,but without removing username in user_list i wanna access the users home directory and his own directory .How will you access the data ????

Span Systems,

3 8600

I have my default runlevel is init5 now i have configured to init 3,now i wanna run my system in init3 process without reboot the system .How will you do for this scenario?

Span Systems,

6 10211

What is the difference between kill and kill -9 commands?

Sabre,

4 11606

what is portmapper,pam and xinetd

Wipro,

1 8782

How to convert an IP address to a Domain name using Unix ?

Verse Innovation,

2 6410

what is the last file executed during the boot process?

iOPEX,

5 11324

What is the difference between smtp and pop3?

Cordys,

3 6961

Un-Answered Questions { Linux }

This question is belong to linux support. "one of my customer told to me, my application is getting slow response". how to resolve the issue. what are the steps you will follow to resolve the issue.

1894

What is Samba? Why is it used?

946

Which linux shell is best?

916

You need to stop your x server. When you try to kill your x server, you got an error message that you cannot quit x server. What will you do?

829

What is the difference linux and redhat?

773

What does uname do in linux?

1115

How to enable acls for /home partition?

961

How do I set permission to run in linux?

1160

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

1051

kernel executes the first process when system starts

850

How can deadlock be prevented?

914

What is DISM command?

1002

What daemon does the event tracking in linux?

970

Is it legal to edit the linux kernel?

866

What does sar provide?

886

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