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 17521

what is user mode & kernel mode?

7 35433

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 19244

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

5 10191

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

1 6421

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 21243

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

ConSim,

3 12342

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

Patni,

5 9654

what is major and minor?

IBM,

2 7727

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

IBM,

4 22184

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 53732

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

2 7031

what is a superblock ?

1 6808

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

Logica CMG,

1 6772

Any one example of uninteruptable sleeping process?

Satyam,

2 6313

Un-Answered Questions { Linux }

What is ipc 610 620?

1082

What are the advantages of linux?

906

Why bash is used in linux?

1044

How do you get its usage (a filesystem)?

875

Why is unix used?

975

What are semaphores in linux?

926

What is socket linux?

823

Explain regular expressions?

872

What is a critical section problem?

897

What is the purpose of the linux?

926

What the command used for list the contents of your home directory, current directory and all subdirectories?

953

What does comm do and how to use it?

998

What is the difference between ext3 and ext4?

2463

What is a socket in linux?

925

Explain about system and user utilities?

962

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