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	Linux Interview Questions & Answers Below we have listed all the Linux Interview Questions and answers. Feel free to comment on any Linux Interview Questions or answer by the comment feature available on the page. To buy an eBook containing 30,000 Interview Questions, with Answers, Click Here. View All Linux Interview Questions & Answers - Exam Mode / Learning Mode
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Linux is, in simplest terms, an operating system. It is the software on a computer that enables applications and the computer operator to access the devices on the computer to perform desired functions. The operating system (OS) relays instructions from an application to, for instance, the computer's processor. Linux (often pronounced LIH-nuhks with a short "i") is a Unix-like operating system that was designed to provide personal computer users a free or very low-cost operating system comparable to traditional and usually more expensive Unix systems.

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Question	Rating	View Answer
Which partitioning tool is available in all distributions? A) Disk Druid B) fdisk C) Partition Magic D) FAT32 E) System Commander		View Answer
You have been assigned the task of determining if there are any user accounts defined on your system that have not been used during the last three months. Which log file should you examine to determine this information? Choose one: a. /var/log/wtmp b. /var/log/lastlog c. /var/log/utmp d. /var/log/messages		View Answer
Which of the following user names is invalid? Choose one: a. Theresa Hadden b. thadden c. TheresaH d. T.H.		View Answer
What is difference between user right and user permission?		View Answer
What are seven fields in the /etc/passwd file.		View Answer
You want to make it possible for your users to mount floppy disks. What do you need to do? Choose one: a. Tell your users the password for root as floppies can only be mounted by root. b. Edit the mtab file and add the user option on the floppy entry. c. Edit the fstab file and add the ro option on the floppy entry. d. Edit the fstab file and add the user option on the floppy entry.		View Answer
Can Linux Access Amiga File Systems?		View Answer
You have a computer with Windows 95 installed and want to install Linux on it. However, there is no free space available. How could you manage to install Linux on this computer with the least amount of effort? Choose one: a. Use fips to resize the partition containing Windows 95. b. Repartition the hard drive; reinstall Windows 95 and then install Linux c. You cannot run Windows 95 and Linux on the same computer d. Create a directory under Windows 95 and install Linux in that directory.		View Answer
What daemon is responsible for tracking events on your system?		View Answer
You have a new application on a CD-ROM that you wish to install. What should your first step be? Choose one: a. Read the installation instructions on the CD-ROM. b. Use the mount command to mount your CD-ROM as read-write. c. Use the umount command to access your CD-ROM. d. Use the mount command to mount your CD-ROM as read-only.		View Answer
What command can you use to review boot messages?		View Answer
Which file do you edit to set partitions to mount at boot time? A) /etc/fstab B) /etc/services C) /etc/smb.conf D) /etc/fstab.conf E) /etc/mount.conf		View Answer
You have a file named phonenos containing names and telephone numbers. Each line contains the telephone number followed by the name. You want to sort the file by telephone number in ascending order. Which of the following commands will accomplish this. Choose one: a. sort phonenos b. sort -c phonenos c. sort -n phonenos d. sort -r phonenos		View Answer
When you install a new application, documentation on that application is also usually installed. Where would you look for the documentation after installing an application called MyApp? Choose one: a. /usr/MyApp b. /lib/doc/MyApp c. /usr/doc/MyApp d. In the same directory where the application is installed.		View Answer
If you type the command cat dog >& cat what would you see on your display? Choose one: a. Any error messages only. b. The contents of the file dog. c. The contents of the file dog and any error messages. d. The contents of the file dog and the file cat.		View Answer
Bob Armstrong, who has a username of boba, calls to tell you he forgot his password. What command should you use to reset his command?		View Answer
Which of the following commands can you use to cleanly restart a Linux machine? [Choose all correct answers] A) reboot B) init 6 C) init 0 D) shutdown -r E) shutdown -h		View Answer
You changed /etc/lilo.conf to cause a boot: prompt to show, however, when you restart your computer you still do not have a prompt. What should you do? Choose one: a. Rename your configuration file to /etc/lilo.conf.new. b. Install the configuration changes by issuing the command /sbin/lilo c. Install the configuration changes by issuing the command /sbin/lilo -t d. Install the configuration changes by issuing the command /sbin/lilo -u		View Answer
You have two files each ten lines long. What text filter could you use to combine the two files so that each line of the output contains the corresponding line from each file?		View Answer
Which of the following are X-based system configuration tools available in some distributions? [Choose all correct answers] A) COAS B) KConf C) Linuxconf D) Yast E) GnoConf		View Answer