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Apple Hardware & Software Troubleshooting 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 Hardware & Software Troubleshooting flashcards as text

  1. A Mac running macOS Ventura shows 'Your disk is almost full' warnings. Which built-in feature helps manage storage?

    Answer: Storage Management (Optimize Storage recommendations)

    The Storage Management pane in System Settings offers Optimize Storage, Empty Trash Automatically, and Reduce Clutter recommendations.

  2. What is the correct procedure to force an iPhone with Face ID (no Home button) into Recovery Mode?

    Answer: Quickly press Volume Up, Volume Down, then hold the side button until the recovery screen appears

    On Face ID iPhones, quickly press Volume Up then Volume Down, then hold the side button until the Connect to Computer (recovery) screen appears.

  3. A technician needs to check whether a Mac's logic board temperature sensors are reporting correctly. Which tool provides this data?

    Answer: Terminal with `sudo powermetrics --samplers smc`

    The `powermetrics` command with the `smc` sampler reports real-time temperature data from all SMC-connected sensors on the logic board.

  4. Which macOS feature creates a cryptographically signed snapshot before a major update to enable rollback?

    Answer: APFS Snapshot (System Snapshot)

    macOS creates an APFS signed system snapshot before major updates, allowing the system to revert if the update fails.

  5. An AirTag is not showing movement updates. A customer asks why. What is the most accurate explanation?

    Answer: AirTag uses the Find My network, relying on nearby Apple devices to relay its location anonymously

    AirTag relies on the crowdsourced Find My network—nearby Apple devices detect the AirTag's Bluetooth signal and anonymously relay its location.

  6. What is System Integrity Protection (SIP) and when might a technician temporarily disable it?

    Answer: SIP restricts root-level access to protected system files; sometimes disabled to install low-level diagnostic or recovery tools

    SIP prevents even root users from modifying protected system directories; technicians may disable it in Recovery to install certain diagnostic or third-party kernel extensions.

  7. A customer's MacBook Pro fans are running at full speed constantly after a logic board repair. What is the most likely cause?

    Answer: A thermal sensor is disconnected or damaged, causing the SMC to default to maximum fan speed

    When the SMC cannot read a thermal sensor, it defaults to running fans at maximum speed as a protective measure against potential overheating.