Practice Test Geeks(ACS) Apple Certified Specialist Practice Test
← All ACS Flashcard Decks

Apple Diagnostics & Repair Processes Flashcards

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

Read the first 7 Apple Diagnostics & Repair Processes flashcards as text

  1. What is the primary purpose of starting a Mac in Safe Mode during troubleshooting?

    Answer: Prevent third-party kernel extensions and startup items from loading

    Safe Mode starts macOS with minimal drivers and disables third-party extensions and login items, isolating whether a startup problem is software-related.

  2. How do you boot an Intel-based Mac into macOS Recovery?

    Answer: Hold Command+R during startup

    Holding Command+R during startup on an Intel Mac boots into macOS Recovery, providing access to Disk Utility, reinstall options, and Terminal.

  3. What is Internet Recovery used for on a Mac?

    Answer: Downloading a recovery environment from Apple's servers when the local recovery partition is unavailable

    Internet Recovery downloads a recovery environment directly from Apple's servers, enabling macOS reinstallation when the local Recovery partition is missing or damaged.

  4. When should DFU (Device Firmware Update) mode be used on an iPhone during service?

    Answer: When the device is stuck in a boot loop and standard Recovery Mode fails

    DFU mode bypasses the bootloader and allows a complete firmware restore when the device cannot boot normally and Recovery Mode is insufficient.

  5. What does Activity Monitor's Energy tab help a technician identify during a battery drain complaint?

    Answer: Which applications are consuming the most power on the system

    Activity Monitor's Energy tab shows each application's energy impact, helping identify software that is draining the battery faster than expected.

  6. How does Console.app assist a technician when diagnosing intermittent Mac issues?

    Answer: It displays system logs and crash reports that reveal the source of errors

    Console.app displays system logs, kernel messages, and crash reports that can reveal software errors or system-level issues, especially useful for intermittent problems.

  7. What does Disk Utility's 'First Aid' function do when run on a Mac volume?

    Answer: Verifies and repairs file system errors on the disk

    First Aid scans a disk volume for file system errors and repairs them when possible, resolving issues caused by disk corruption.