ACMT Hardware Diagnostics & Repair 1 — Questions and Answers
Question 1: Which Apple tool is used to run hardware diagnostics on a Mac before beginning a repair?
- Apple Configurator 2
- Apple Service Toolkit 2 (AST 2) (Correct answer)
- System Information
- Disk Utility
Correct answer: Apple Service Toolkit 2 (AST 2)
Apple Service Toolkit 2 (AST 2) is the official diagnostic tool used by Apple Authorized Service Providers to test Mac hardware components.
Question 2: What does MRI stand for in the context of Apple diagnostics?
- Mac Resource Inspector (Correct answer)
- Mac Remote Interface
- Mac Repair Instrument
- Mac ROM Identifier
Correct answer: Mac Resource Inspector
MRI (Mac Resource Inspector) is Apple's internal diagnostic suite used to test individual hardware components on a Mac.
Question 3: When replacing a MacBook Pro logic board, what is the first step a technician should perform?
- Disconnect the display
- Remove the bottom case
- Disconnect the battery connector (Correct answer)
- Remove the SSD
Correct answer: Disconnect the battery connector
Disconnecting the battery connector is the first step to prevent shorts and protect both the technician and the device during a logic board replacement.
Question 4: A customer's Mac does not power on and shows no signs of life. Which component should be checked first?
- RAM modules
- CMOS battery
- Power adapter and MagSafe LED indicator (Correct answer)
- GPU
Correct answer: Power adapter and MagSafe LED indicator
Verifying the power adapter is functioning and checking the MagSafe or USB-C charging indicator is the first triage step for a Mac that won't power on.
Question 5: Which key combination boots a Mac into Apple Diagnostics when held at startup?
- Command + R
- Option + D (Correct answer)
- Shift + Control + Option
- Command + Option + P + R
Correct answer: Option + D
Holding Option + D at startup boots an Intel Mac into Apple Diagnostics over the internet, allowing hardware testing without macOS.
Question 6: What error code category in Apple Diagnostics indicates a memory issue?
- ADP
- MEM (Correct answer)
- NDC
- VFD
Correct answer: MEM
Apple Diagnostics error codes beginning with 'MEM' indicate that a problem was detected with the Mac's memory (RAM).
ACMT Hardware Diagnostics & Repair 1
Which Apple tool is used to run hardware diagnostics on a Mac before beginning a repair?