Basic Linux Concepts And Commands

10 Questions | Total Attempts: 157

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Basic Linux Concepts And Commands

These questions are all based on commands from the DSR 4. X Installation Guide. All answers are multiple-choice, one answer per question. This test is anonymous and scoring is only used for the purpose of identifying areas to target in Team training.


Questions and Answers
  • 1. 
    Is Linux the same as UNIX?
    • A. 

      Yes

    • B. 

      No

    • C. 

      Yes, Linux is an Open Source fork of UNIX

    • D. 

      No, Linux is UNIX-like, but it was created by a college student from Finland.

  • 2. 
    What is a "Linux distribution" or distro
    • A. 

      An event where hackers volunteer to hand out Linux-related promotional items.

    • B. 

      The part of a Linux installation where the files are actually written to the disk.

    • C. 

      How logical volumes are arrayed across physical volumes when using Logical Volume Management (LVM).

    • D. 

      A particular assortment of applications installed on top of a set of libraries married with a version of the Linux kernel.

  • 3. 
    Under which Distribution and version of Linux does the DSR 4.x software run?
    • A. 

      CentOS 6.3 64-bit

    • B. 

      CoinOP 6.3 2-bits

    • C. 

      Linux 2.6 SMP x86_64

    • D. 

      Windows Vista Ultimate for Enterprise Black Diamond Edition

  • 4. 
    Which command will show all the information about the currently running version of the Linux kernel?
    • A. 

      Motd

    • B. 

      Uname -a

    • C. 

      Id

    • D. 

      Netstat -an

  • 5. 
    Which command will list the contents of a directory, listed by file modification time, in reverse order (last modified file shows up at the bottom of a listing)?
    • A. 

      Ls

    • B. 

      Ls -al

    • C. 

      Ll

    • D. 

      Ls -lart

  • 6. 
    Which command will list the mounted filesystems, with disk usage output in human-readable form (in MB, GB, etc.)?
    • A. 

      Df -ok

    • B. 

      Df -k

    • C. 

      Df -kh

    • D. 

      Df --human-readable

  • 7. 
    You try to ping a host on a different network and get a "Destination Network Unreachable"
    • A. 

      The internet is down.

    • B. 

      There is a firewall on the remote host blocking inbound ICMP requests.

    • C. 

      The network you are on has no route to the network you are trying to access.

    • D. 

      Sunspots

  • 8. 
    You are trying to umount (unmount) a directory, but keep receiving the error "Device or resource busy".  Why might this be?
    • A. 

      Your computer hates you.

    • B. 

      Solar Flares

    • C. 

      You are on a Windows machine and connected to the server with PuTTY.

    • D. 

      Your current working directory is within the location that you are trying to umount.

  • 9. 
    For scp, what does the "-r" option do? 
    • A. 

      Removes the remote file if it exists.

    • B. 

      Recursively copy entire directories.

    • C. 

      Randomly selects in which order multiple files will be copied.

    • D. 

      On a Honda, indicates that it was ordered with the "Racing" package.

  • 10. 
    What does the "lsof" command do?
    • A. 

      Displays a list of open files.

    • B. 

      Displays a list of obsolete functions.

    • C. 

      Displays a list of obvious failures.

    • D. 

      Displays a list of Friday...have a great weekend!

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