ACMT macOS Troubleshooting 2

Question 1

What does running 'First Aid' in Disk Utility do?

Accepted Answer

Verifies and repairs the disk's file system structure

Answer

Erases the disk

Answer

Formats the drive as APFS

Answer

Checks hardware health of the SSD

Question 2

A Mac shows a flashing question mark folder at startup. What does this indicate?

Accepted Answer

The startup disk cannot be found or is not set

Answer

FileVault encryption is active

Answer

RAM has failed

Answer

The Mac has entered Target Disk Mode

Question 3

Which macOS utility allows a technician to create a bootable macOS installer on a USB drive?

Accepted Answer

createinstallmedia command-line tool

Answer

Disk Utility

Answer

Apple Configurator 2

Answer

Migration Assistant

Question 4

A user's Mac is running slowly and Activity Monitor shows high kernel_task CPU usage. What is the most likely cause?

Accepted Answer

The Mac is throttling the CPU due to thermal or power issues

Answer

A virus infection

Answer

RAM is faulty

Answer

The SSD is full

Question 5

What is the function of NVRAM (Non-Volatile RAM) on a Mac?

Accepted Answer

Stores settings like startup disk, display resolution, and speaker volume

Answer

Stores user documents for quick access

Answer

Holds the macOS kernel during boot

Answer

Manages active RAM allocation

Question 6

How should a technician reset NVRAM on an Intel-based Mac?

Accepted Answer

Hold Option + Command + P + R at startup for at least two startup chimes or 20 seconds

Answer

Hold Command + R at startup

Answer

Remove and reinsert the CMOS battery

Answer

Run 'nvram -c' in Terminal