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

Linux Interview Questions

Questions Answers Views Company eMail

what is symbolic link in unix ???

Symphony, TCS,

5 17269

what is user mode & kernel mode?

7 35205

What is the difference between a process task and threads and what are the things that are acquired by the child process from the parent process

5 19023

how to run the boot loader in the linux.......

5 9999

what are Softirq's and how many major numbers be allocated in the linux kernel(2.4) ?

1 6319

1.I want to change runlevel but the Users shall not be disturbed?how? 2.Disk have 5gb disk utilization even though files unable to create, why? 3.what are the internal and external command in linux? 4.sar command o/p? 5.how list the open files? 6.what is kernel compiling? 7.How do u See complete configuration in ur system? 8.how will u make a daily updates with cron daily? 9.which port is associated with ttys0? 10.specific some problems linux admin(if u are linux admin)faced and how did u overcome it?

IBM, TCS,

10 20849

1.what is Kernel parameters? 2.how many cpu have use in your machine?

ConSim,

3 12200

what is the command to make a process to run in the background from foreground?

Patni,

5 9439

what is major and minor?

IBM,

2 7580

what is soft mount and hard mount? i have to make permanent nfs mount permanent what shall i do?

IBM,

4 22001

what is the UID and GID of root user? Can a normal user can change the ownership of a file? what is the command to change ownership of a file?

HCL, IPsoft,

9 53433

what is the command to check network interfaces in our system? how to set etho to 10 full duplex speed?

2 6947

what is a superblock ?

1 6728

how many limitations of under directories in ext2/3 linux file system?

Logica CMG,

1 6694

Any one example of uninteruptable sleeping process?

Satyam,

2 6206

Un-Answered Questions { Linux }

What is nfs?

902

What does ls -r do?

961

Is cmake a compiler?

1001

What is cpu core in linux?

959

What is bash shell?

795

How to Form Local Addresses?

1360

What is the use of dollar sign in linux?

985

What is whois command in linux?

1004

What does history command do in linux?

1050

You have a large spreadsheet located in the /data directory that five different people need to be able to change. How can you enable each user to edit the spreadsheet from their individual home directories?

827

How do I get to root in linux?

987

Why are threads expensive?

820

What is the root account?

825

Which ipc mechanism is fastest and how?

1072

Is unix and linux the same thing?

798

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