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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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In order to prevent a user from logging in, you can add a(n) ________at the beginning of the password field.		View Answer
Which of the following items would not be important for you to record in your system documentation. Choose one: a. Any kernel patches you might apply. b. Applications that are installed. c. When did each user log on last. d. What problems with the system you have had.		View Answer
You need to delete the group dataproject. Which two of the following tasks should you do first before deleting the group? A. Check the /etc/passwd file to make sure no one has this group as his default group. B. Change the members of the dataproject group to another group besides users. C. Make sure that the members listed in the /etc/group file are given new login names. D. Verify that no file or directory has this group listed as its owner. Choose one: a. A and C b. A and D c. B and C d. B and D		View Answer
Which package provides secure remote login sessions, such as secure telnet logins? A) securetelnet B) ssh C) shadow D) ipchains E) SOCKS 5		View Answer
After copying a file to a floppy disk, what should you do before removing the disk?		View Answer
What is the real mean of DHCP?		View Answer
Mary has recently gotten married and wants to change her username from mstone to mknight. Which of the following commands should you run to accomplish this? Choose one: a. usermod -l mknight mstone b. usermod -l mstone mknight c. usermod -u mknight mstone d. usermod -u mstone mknight		View Answer
What file defines the levels of messages written to system log files?		View Answer
Which of the following commands will show a list of the files in your home directory including hidden files and the contents of all subdirectories? Choose one: a. ls -c home b. ls -aR /home/username c. ls -aF /home/username d. ls -l /home/username		View Answer
What type would you set on a partition to make it a swap partition? Choose one: a. 82 b. 83 c. s d. swap		View Answer
You have created a primary partition, a swap partition and an extended partition. You can format the primary partition but when you try to format the extended partition it fails. What is the problem? Choose one: a. You should have created another primary partition instead of an extended partition. b. Your syntax is wrong for the format command when attempting to format the extended partition. c. You cannot format an extended partition. d. You have to use the fdformat command to format extended partitions.		View Answer
What type of server is used to remotely assign IP addresses to machines during the installation process? A) SMB B) NFS C) DHCP D) FT E) HTTP		View Answer
What are the Disk Space Requirements for Minimal, Server, and Workstation Use?, and What are the Minimum and Maximum Memory Requirements?.		View Answer
Which of the following commands will show a list of the files in your home directory including hidden files and the contents of all subdirectories?		View Answer
Which field is used to define the user's default shell?		View Answer
What is the results of the command cat horse \| tee dog? Choose one: a. The contents of the file horse would be displayed on the screen and saved in a new file called dog. b. The contents of the file horse would be displayed on the screen. c. The contents of the file horse would saved in a new file called dog. d. The contents of the files horse and dog would be displayed on the screen.		View Answer
Which two documents should you consult before making any final purchasing recommendations? A) The overall Linux hardware compatibility listing. B) The hardware compatibility listing for the distribution you have chosen. C) The installation instructions for the distribution you have chosen. D) System administration documentation. E) Linux user documentation.		View Answer
What command would you type to use the cpio to create a backup called backup.cpio of all the users' home directories? _____________		View Answer
What can you type at a command line to determine which shell you are using?		View Answer
How does the locate and find commands differ in their method of searching? Choose one: a. locate uses the locatedb database and find searches the directory tree. b. find uses the finddb database and locate searches the directory tree. c. find searches the directory tree and the locate command only searches known directories. d. Both locate and find searches the directory tree.		View Answer