Linux – Interview Questions
Q. File system in linux
Q. what do you mean by open source and gnu
Q. what are different flavors of Linux
Q. what is deference between Unix and Linux
Q. what is SSH and how it works
Q. what is samba
Q. How do I rm or mv a file that begins with a dash?
Q. How do I determine how much disk space I have in Linux / Unix?
Q. what is kernel and its version
Q. Boot process of linux OS
Q. Runlevels in Linux
Q. Crontab working.
Q. Backup Policy / types of backup
Q. what is MBR and its size, where it is located, how to modify it.
Q. Difference between linux and windows
Q. what is the booting sequence of window operating system and how it is different from linux operating
Q. Difference between NTFS and FAT32
Q. what is the meaning of physical memory and virtual memory?
Q. why paging?what is virtual memory?what is virtual address space?
Q. What is diffrent between port and interface.
Q. what is the relation between process system time, process waiting time , and process CPU time?
Q. diffrentiate between a process and a program
Q. how do i partition the disk under red hat linux?
Q. What is diffrence between Process and Daemon?
Q. You need to see the last fifteen lines of the files dog, cat and horse. What command should you use?
Q. Who owns the data dictionary?
Q. You suspect that you have two commands with the same name as the command is not producing the expected results. What command can you use to determine the location of the command being run?
Q. You locate a command in the /bin directory but do not know what it does. What command can you use to determine its purpose.(whatis)
Q. You wish to create a link to the /data directory in bob’s home directory so you issue the command ln /data /home/bob/datalink but the command fails. What option should you use in this command line to be successful.
Q. You wish to restore the file memo.ben which was backed up in the tarfile MyBackup.tar. What command should you type?
Q. You need to view the contents of the tarfile called MyBackup.tar. What command would you use?
Q. What daemon is responsible for tracking events on your system?
Q. You would like to temporarily change your command line editor to be vi. What command should you type to change it?
Q. What account is created when you install Linux?
Q. What command should you use to check the number of files and disk space used and each user’s defined quotas?
Q. In order to run fsck on the root partition, the root partition must be mounted as?
Q. In order to improve your system’s security you decide to implement shadow passwords. What command should you use?
Q. You have two files in two different directories with the same inode. What type of link is involved?
what is cpio
Q. You have the /var directory on its own partition. You have run out of space. What should you do?
Q. Where are the startup scripts defined?
Q. You want to make it possible for your users to mount floppy disks. What do you need to do?
Q. What happens to your ipchains settings when you reboot a machine?
Q. You have a technician who will come in after hours to install new hardware in your system. You do not want to give him the root password, but he needs to be able to shutdown the system. How can you accomplish this?
Q. What is INODE
Q. What is meant by sticky bit?
Q. How does single user mode differ from other runlevels?
Q. How does the locate and find commands differ in their method of searching?
Q. Umask
Q. How do you install apache server with php
Q. Can we have 2 php versions on one server
Q. How will you tune mysql server for better performance, what are configurations that you will check
Q. How do we change run level in linux, how many methods are there
Q. Basic shell commands, what does they do
Q. What are the fields of the password file?
Q. What are the man pages in linux
Q. What would you use to view contents of a large error log file?
Q. How do we delete user with his home directories.
Q. What is CVS, in linux which cvs software we use.
Q. What is IM server. Which are the IM softwares available.
Q. How to configure FTP.
Q. How to install various libraries with php.
Q. What is sendmail and its configurations
Q. What is VPN.
Q. What are firewalls.
Q. Which Linux distros do you have experience with?
Q. Which Linux distro you prefer? Why?
Q. What are log analyzer.
Q. What is port forwarding and natting
Q. How to configure samba.
