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  • Life always offers you a second chance ... Its called tomorrow !!!

    Wednesday, June 18, 2014

    Linux User and Accounts Management (QUIZ)

    NOTE: Each correct answer would give you 5 point.

    1. What do you type in the password field of /etc/passwd to prevent a user from accessing a system?
    2. A comma (')
      An asterisk (*)
      An exclamation mark (!)
      Two exclamation marks (!!)

    3. Which system account sets permission on system processes?
    4. adm
      bin
      daemon
      root


    5. Which command do you use to enable shadowing?
    6. finger
      passwd
      pwconv
      pwunconv


    7. What is the command to determine when a user needs to change the password?
    8. chage -E
      chage -l
      chage -m
      chage -W


    9. Which command changes deepak's home directory from its default location to /usr/local directory?
    10. usermod -d /usr/local deepak
      usermod -g /usr/local deepak
      usermod -l /usr/local deepak
      usermod -a /usr/local deepak


    11. Which command removes the admin group from the system?
    12. groupdel -n admin
      groupdel -o -g admin
      groupmod -o delete admin
      groupdel admin


    13. Which command do you use to create a new password for user "deepak"?
    14. passwd deepak
      password deepak
      pswd deepak
      passwd -x deepak


    15. Select the system account contained in /etc/passwd file that owns the executable files
    16. adm
      bin
      daemon
      root


    17. Which passwd command option sets the maximum number of days after a password expires before an account is locked?
    18. i
      l
      n
      w


    19. What does usermod -l deepak pradeep command do?
    20. Add deepak to the system
      Change the login name of deepak to pradeep
      Delete deepak's account and replace with pradeep account
      Move the files in pradeep's home directory to deepak's home directory

    21. In which file or directory are user's folders created by default?
    22. /etc/passwd
      /etc/group
      /home
      /etc/skel


    23. You have created new shell scripts and placed these scripts in the /usr/local/bin directory. You want to now add this directory to the system path. Which command do you use to do this?
    24. HOME=/usr/local/bin
      PATH=$PATH:/usr/local/bin
      SHELL=$SHELL:/usr/local/bin
      ENV=$ENV:/usr/local/bin


    25. Which command enables you to change the password to the finance group?
    26. gpasswd -a finance
      gpasswd -d finance
      gpasswd -r finance
      gpasswd finance


    27. Which configuration file contains the default values of environment variables for the Bourne Again shell (bash)?
    28. ~/.bash_logout
      ~/.bash_profile
      /etc/bashrc
      /etc/profile


    29. Suppose you want to change the name of the group from "oldstuff" to "newstuff". Which command would you use?
    30. groupmod -n -g oldstuff newstuff
      groupmod -n -o oldstuff newstuff
      groupmod -n oldstuff newstuff
      groupmod -n oldstuff newstuff


    31. Which file stores user-specific values of environment variables for the Bourne Again shell (bash)?
    32. .bash_logout
      .bash_profile
      .bashrc
      .bash_history


    33. Which command adds user "deepak" to "admin" group?
    34. gpasswd +deepak admin
      gpasswd -a deepak admin
      groupadd +deepak admin
      groupadd admin deepak


    35. Which command do you use to copy and rename a compressed kernel image file to the /boot partition?
    36. cat /usr/src/linux/arch/i386/bzImage /boot/vmlinuz-2.6.14p3
      cp -p /usr/linux/arch/i386/bzImage /boot/vmlinuz-2.6.14p3
      cp -p /usr/src/linux/arch/i386/bzImage /boot/vmlinuz-2.6.14p3
      move /usr/src/linux/arch/i386/bzImage /boot/vmlinuz-2.6.14p3


    37. What does double exclamation mark (!!) symbol in the password entry in /etc/passwd file indicate?
    38. An unsafe password has been set
      No password has been set
      There is an error in the passwod field
      The user has been blocked from logging

    39. Which command checks the consistency of group password files?
    40. grpck
      gpconv
      passwd
      pwck


    41. When a user initiates bash shell, which user specific configuration file does the system read first?
    42. ~/.bash_logout
      ~/.bash_profile
      ~/.bashrc
      /etc/profile


    43. Why can only one group be active for a user at one time?
    44. A user cannot switch between groups
      Groups determine user's file permissions
      Linux supports limited number of groups
      User can be active for multiple groups at single time

    45. Which passwd command option do you use to set max number of days that can pass before a password expires?
    46. -n
      -u
      -w
      -x


    47. Which unix command should you use to list only those processes that monitor the terminal ports for user login sessions?
    48. finger
      ps -aux | grep getty
      ps -aux | grep telnetd
      who


    49. Which command is used to login and logout from any account on the terminal?
    50. su
      sudo
      log_out
      logme




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