Practice Test Geeks(SAC) System Administration Certification Practice Test
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Operating Systems and System Configuration Flashcards

7 cards from real SAC practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Operating Systems and System Configuration flashcards as text

  1. Which Linux command displays the current runlevel on a SystemV init system?

    Answer: runlevel

    The `runlevel` command prints the previous and current runlevel on SysV init systems.

  2. In Windows, which registry hive stores user-specific settings for the currently logged-in user?

    Answer: HKEY_CURRENT_USER

    HKEY_CURRENT_USER (HKCU) contains configuration settings specific to the currently logged-in user.

  3. What is the purpose of the /etc/fstab file in Linux?

    Answer: Lists filesystems to mount at boot

    /etc/fstab defines which filesystems should be automatically mounted at system boot and their mount options.

  4. Which Windows tool allows administrators to configure which services start automatically at boot?

    Answer: Services.msc

    Services.msc (the Services management console) lets administrators view, start, stop, and configure service startup types.

  5. On a Linux system, what does the sticky bit do when set on a directory?

    Answer: Allows only the file owner to delete files within it

    The sticky bit on a directory ensures only the file's owner (or root) can delete or rename files within it, even if others have write permission.

  6. Which command is used to change a file's ownership in Linux?

    Answer: chown

    The `chown` command changes the owner (and optionally group) of a file or directory.

  7. In macOS, which directory stores system-wide launch daemons that run as root?

    Answer: /Library/LaunchDaemons

    /Library/LaunchDaemons contains property list files for system-wide services that run as root at boot.