Linux Admin IQ Test

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| By Appcorehr
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Appcorehr
Community Contributor
Quizzes Created: 1 | Total Attempts: 6,137
Questions: 20 | Attempts: 6,144

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Linux Admin IQ Test - Quiz

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Questions and Answers
  • 1. 

    The previous system administrator put useless messages at login, what file do you edit to change the system message?

    • A.

      /etc/motd

    • B.

      /etc/str

    • C.

      /etc/strtms

    • D.

      /etc/.conf

    Correct Answer
    A. /etc/motd
    Explanation
    The correct answer is /etc/motd. The message of the day (motd) file is located in the /etc directory and is used to display a custom message to users when they log in to the system. By editing this file, the system administrator can change the system message and remove any useless messages that were previously added by the previous administrator.

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  • 2. 

    Users on your network cannot print to a Linux printer. You decide to restart the printer daemon, which command would achieve that?

    • A.

      Topq printer-name

    • B.

      Enable printer-name

    • C.

      Restart printer-name

    • D.

      Up printer-name

    Correct Answer
    C. Restart printer-name
    Explanation
    The correct answer is "restart printer-name." To solve the problem of users on the network being unable to print to a Linux printer, restarting the printer daemon is a possible solution. The "restart" command followed by the name of the printer would initiate the restart process for the printer daemon, potentially resolving the printing issue.

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  • 3. 

    Which file does Linux use to resolve hostnames?

    • A.

      /etc/hostname.conf

    • B.

      /etc/dns.conf

    • C.

      /etc/host.conf

    • D.

      /etc/resolve.conf

    Correct Answer
    C. /etc/host.conf
    Explanation
    Linux uses the /etc/host.conf file to resolve hostnames. This file contains configuration settings for the hostname resolution process. It allows the user to define the order in which the system should query different sources, such as DNS or the hosts file, to resolve a hostname to an IP address. By configuring the /etc/host.conf file, users can customize the hostname resolution behavior according to their specific requirements.

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  • 4. 

    What is "tin"?

    • A.

      Terminal Interpreter

    • B.

      The command to change the time

    • C.

      The command to compare text files

    • D.

      A newsreader

    Correct Answer
    D. A newsreader
    Explanation
    "Tin" refers to a newsreader, which is a software application used to read and organize news articles from various sources. It allows users to subscribe to different news feeds, browse articles, and manage their news subscriptions. This term is commonly used in the context of internet news and online forums.

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  • 5. 

    What are the file attributes for executing Perl programs?

    • A.

      666

    • B.

      755

    • C.

      766

    • D.

      777

    Correct Answer
    B. 755
    Explanation
    The file attributes for executing Perl programs are 755. This means that the owner of the file has read, write, and execute permissions, while others only have read and execute permissions. This allows the owner to modify and execute the Perl program, while others can only read and execute it.

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  • 6. 

    What is bash?

    • A.

      Something you do to a watermelon

    • B.

      A command to delete multiple files

    • C.

      A network bit format

    • D.

      A command shell

    Correct Answer
    D. A command shell
    Explanation
    Bash is a command shell, which is a program that provides a command line interface for users to interact with the operating system. It is commonly used on Unix-based systems and is known for its powerful scripting capabilities. Bash allows users to execute commands, run scripts, and automate tasks, making it a fundamental tool for system administration and programming.

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  • 7. 

    What is the DOS LPT1 port in Linux?

    • A.

      /dev/lpt0

    • B.

      /dev/lpt1

    • C.

      /dev/lp0

    • D.

      /dev/lp1

    • E.

      DOSLPT1

    Correct Answer
    C. /dev/lp0
    Explanation
    The correct answer is /dev/lp0. In Linux, the DOS LPT1 port is represented by the /dev/lp0 device file. The /dev/lp0 device file is used to access the parallel port, which is typically used for connecting printers. This device file allows Linux users to interact with the parallel port and send data to connected devices such as printers.

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  • 8. 

    What is the minimum memory requirements for XFree86? 

    • A.

      640K

    • B.

      2MB

    • C.

      4MB

    • D.

      8MB

    • E.

      16MB

    Correct Answer
    B. 2MB
    Explanation
    2 MB is the amount of memory which is sufficient to run the basic X Window System environment. However, for more demanding graphical environments or applications, higher amounts of memory may be necessary.

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  • 9. 

    You attempt to remove a directory, but Linux won't allow you, what is the most likely problem?

    • A.

      The directory name contains illegal characters

    • B.

      You are not logged in as root

    • C.

      The hard disk is full

    • D.

      The directory is not empty

    • E.

      None are likely problems

    Correct Answer
    D. The directory is not empty
    Explanation
    The most likely problem is that the directory is not empty. In Linux, you cannot remove a directory if it contains any files or subdirectories. You need to first remove all the contents within the directory before being able to remove the directory itself.

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  • 10. 

    From a command prompt, what does the command "ls" do?

    • A.

      Lists the settings of the OS

    • B.

      Lists the contents of the directory

    • C.

      List command to list contents of files

    • D.

      Finnish words, means to direct a file to a port

    • E.

      None of the Above -------------------------------------------------------------------------------- None of the Above -------------------------------------------------------------------------------- None of the Above -------------------------------------------------------------------------------- None of the Above -------------------------------------------------------------------------------- None of the Above -------------------------------------------------------------------------------- None of the Above -------------------------------------------------------------------------------- None of the Above -------------------------------------------------------------------------------- None of the Above

    Correct Answer
    B. Lists the contents of the directory
    Explanation
    The command "ls" is used to list the contents of a directory from a command prompt. It displays the files and subdirectories present in the current working directory.

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  • 11. 

    Which command creates a file system? 

    • A.

      Fdisk

    • B.

      Crfs

    • C.

      Mkfs

    • D.

      Fs

    Correct Answer
    C. Mkfs
    Explanation
    The command "mkfs" is used to create a file system on a storage device. It is commonly used in Linux and Unix systems to format a partition or disk with a specific file system type, such as ext4 or NTFS. This command initializes the file system structures and metadata on the device, allowing it to be used for storing files and directories.

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  • 12. 

    What is the default administrator username?

    • A.

      Administrator

    • B.

      Admin

    • C.

      Superuser

    • D.

      Root

    • E.

      Head

    Correct Answer
    D. Root
    Explanation
    In Linux systems, the default administrator username is typically root. The root user has full administrative privileges, allowing them to control system settings, install software, and perform other critical tasks. Because of its powerful role, access to the root account should be managed carefully to maintain system security and prevent unauthorized changes. Other systems might use "admin" or similar, but "root" is the standard administrator account on new Linux installations.

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  • 13. 

    Which of the following are valid Linux wildcards? (Choose all that apply)

    • A.

      * and ?

    • B.

      /

    • C.

      ?

    • D.

      &

    • E.

      Z

    Correct Answer
    A. * and ?
    Explanation
    The correct answer is "* and ?". In Linux, the asterisk (*) is a wildcard that represents any number of characters, while the question mark (?) represents a single character. These wildcards are commonly used in file and directory searches to match multiple filenames or patterns. The other options (/, ?, &, Z) are not valid Linux wildcards.

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  • 14. 

    What does the command "ps" do?  

    • A.

      Prints the directory

    • B.

      Shows what processes are running

    • C.

      Print status of LPT1

    • D.

      Produces system statistics

    • E.

      None of the above

    Correct Answer
    B. Shows what processes are running
    Explanation
    The command "ps" is used to display information about the currently running processes on a system. It provides details such as process ID, CPU usage, memory usage, and other relevant information. By executing the "ps" command, users can get an overview of the processes that are currently active and running on their system.

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  • 15. 

    You are working in Linux when a program hits a flaw and stops running. Which command can be used to end the process?

    • A.

      Kill

    • B.

      Stop

    • C.

      End

    • D.

      Wait

    • E.

      CTL-ALT-DEL

    Correct Answer
    A. Kill
    Explanation
    The kill command in Linux can be used to terminate a process. It sends a signal to the specified process, causing it to stop running. This is a commonly used command to end a program that has encountered a flaw or is unresponsive.

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  • 16. 

    A user is logged into the Linux workstation, what is the best way to login to root from a shell prompt?

    • A.

      Login root

    • B.

      Chuser root

    • C.

      Su

    • D.

      Root

    Correct Answer
    C. Su
    Explanation
    The correct answer is "su". The "su" command stands for "switch user" and allows the user to switch to a different user account, in this case, the root user. By entering "su" followed by the root password, the user can gain root privileges and access the root account from the shell prompt. This is considered the best way to login to root as it provides a secure and controlled method of accessing the root account.

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  • 17. 

    Linux allows filenames up to what number of characters?

    • A.

      8

    • B.

      11

    • C.

      256

    • D.

      512

    • E.

      Unlimited

    Correct Answer
    C. 256
    Explanation
    Linux allows filenames up to 256 characters because it follows the POSIX standard, which specifies that the maximum length for a filename is 255 characters. This limitation is due to the way file systems are designed and the need to allocate space for storing the filename. Therefore, any filename in Linux that exceeds 256 characters will not be recognized or accessible.

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  • 18. 

    T/F: The command "pwd" displays the directory

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The command "pwd" stands for "print working directory" and is used to display the current directory that the user is in. Therefore, the statement "The command 'pwd' displays the directory" is true.

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  • 19. 

    T/F: To move files, use the "move" command.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    The correct answer is False because to move files, you should use the "mv" command in most operating systems, including Unix-like systems. The "move" command is not a recognized command for moving files.

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  • 20. 

    You forget the root password. You decide to reboot using a boot disk floppy. What do you need to do to recover the root password?

    • A.

      Mount the main partition, edit the /etc/passwd file to remove the root password, reboot.

    • B.

      Mount the root partition, edit the /etc/passwd file to remove the root password, reboot.

    • C.

      Mount the main partition, edit the /tmp/passwd file to remove the root password, reboot

    • D.

      None of the above

    Correct Answer
    B. Mount the root partition, edit the /etc/passwd file to remove the root password, reboot.
    Explanation
    To recover the root password after forgetting it, you need to mount the root partition and then edit the /etc/passwd file to remove the root password. After making this change, you can reboot the system. This is the correct answer because the /etc/passwd file contains the user account information, including the encrypted passwords. By removing the root password from this file, the system will allow you to login as root without a password, effectively recovering the root access.

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  • Current Version
  • Apr 21, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Apr 22, 2011
    Quiz Created by
    Appcorehr
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