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Operating Systems Flashcards

7 cards from real COMPTIA 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 flashcards as text

  1. Which Windows tool allows a technician to view, start, stop, and configure background services?

    Answer: services.msc

    The Services console (services.msc) provides full control over Windows services including start/stop, startup type configuration, and recovery options.

  2. A technician needs to find which process is using a specific TCP port on a Windows machine. Which command is most helpful?

    Answer: netstat -ano

    The 'netstat -ano' command lists active TCP/UDP connections with the local port, remote address, state, and the PID of the owning process.

  3. Which Linux filesystem type is commonly used as the default for most modern Linux distributions?

    Answer: ext4

    ext4 is the fourth extended filesystem and is the default filesystem for most mainstream Linux distributions due to its journaling, performance, and reliability.

  4. What does the 'ipconfig /flushdns' command do on a Windows machine?

    Answer: Clears the local DNS resolver cache

    The 'ipconfig /flushdns' command purges the local DNS cache, which can resolve name resolution issues caused by stale or incorrect cached DNS records.

  5. Which Windows OS feature prevents unauthorized changes by prompting the user for approval or credentials before allowing administrative actions?

    Answer: User Account Control (UAC)

    User Account Control (UAC) prompts users to confirm or provide administrator credentials before allowing programs to make changes that could affect the system.

  6. A macOS user wants to reinstall the operating system without erasing their data. Which macOS recovery option best accomplishes this?

    Answer: Reinstall macOS from Recovery Mode

    Reinstalling macOS from Recovery Mode overlays the OS over the existing installation, preserving user data and applications while repairing system files.

  7. In the context of operating systems, what is a 'kernel'?

    Answer: The core component that manages hardware resources and system calls

    The kernel is the core of an operating system that directly manages hardware resources, handles system calls, and mediates communication between software and hardware.