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Technical Support & Troubleshooting Flashcards

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

Read the first 7 Technical Support & Troubleshooting flashcards as text

  1. A Mac boots to a folder icon with a flashing question mark. What does this indicate?

    Answer: macOS cannot find a valid startup disk

    A flashing folder with a question mark means the Mac's firmware cannot locate a bootable macOS installation.

  2. After enabling FileVault on a Mac, a user forgets their password and has no recovery key. What is the outcome?

    Answer: The data on the drive is permanently inaccessible

    FileVault uses AES-128 or AES-256 encryption, and without the password or recovery key, encrypted data cannot be recovered.

  3. A trainer is troubleshooting an iPhone that shows 'No SIM Card Installed' after a drop. After reseating the SIM tray, the error persists. What is the NEXT step?

    Answer: Test with a known-good SIM card in the same tray slot

    Testing with a known-good SIM isolates whether the issue is the SIM itself or the device's SIM reader hardware.

  4. Which macOS startup modifier key combination boots a Mac into Safe Mode to help isolate software conflicts?

    Answer: Shift (held during startup)

    Holding Shift during startup boots macOS into Safe Mode, which disables third-party kernel extensions and login items.

  5. A user reports Bluetooth audio dropouts on their Mac. Other Bluetooth devices nearby work fine. What is a common cause specific to this scenario?

    Answer: Wi-Fi and Bluetooth interference on the 2.4 GHz band

    Wi-Fi operating on the 2.4 GHz band can interfere with Bluetooth, causing audio dropouts, especially in congested wireless environments.

  6. After migrating data with Migration Assistant, a user's apps from the old Mac are not functioning on the new Mac with Apple silicon. What is the MOST likely cause?

    Answer: The apps are Intel-only and lack Universal binary or Rosetta support

    Intel-only (x86_64) apps require Rosetta 2 to run on Apple silicon Macs, and some older apps may not function even with Rosetta.

  7. A user's Mac displays 'Your startup disk is almost full' warning. Which built-in macOS feature should the trainer direct them to first?

    Answer: Storage Management (About This Mac > Storage > Manage)

    Storage Management in macOS provides recommendations for reducing disk usage, including optimizing storage, emptying trash automatically, and identifying large files.