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 17571

what is user mode & kernel mode?

7 35505

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 19290

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

5 10235

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

1 6433

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 21326

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

ConSim,

3 12376

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

Patni,

5 9686

what is major and minor?

IBM,

2 7757

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

IBM,

4 22200

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 53787

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

2 7052

what is a superblock ?

1 6824

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

Logica CMG,

1 6786

Any one example of uninteruptable sleeping process?

Satyam,

2 6329

Un-Answered Questions { Linux }

How does thread pool keeps the thread alive?

775

How do we store an application’s documentation?

959

Explain difference between nfs soft and hard mouniting points?

955

How do I permanently set ulimit in linux?

947

Does ios use linux kernel?

930

Why context switching is faster in threads?

830

How do I see what services are running in linux?

936

How to use the socket(2) Function?

1526

Enlist few advantages of red hat linux?

663

What does sar provide?

891

How many threads does an i7 7700k have?

829

How do I put games on playonlinux?

872

Which are the shells used in linux?

936

Is linux still used?

842

Is linux always free?

843

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