Part 8: System Management - Lesson 26—Troubleshoot Peripherals

Question 1

What are the four primary peripheral bus technologies supported by Mac computers that run
macOS Sierra?

Answer 1

These are the four primary peripheral bus technologies supported by macOS High Sierra:

a. Universal Serial Bus (USB)
b. FireWire
c. Bluetooth wireless
d. Thunderbolt

Question 2

What must occur for a Mac to communicate with a Bluetooth peripheral? Where can you configure this
pairing?

Answer 2

Bluetooth devices must be paired for communication to occur. Bluetooth preferences in the System
Preference app are responsible for pairing a Mac with Bluetooth peripherals. You can quickly open
Bluetooth preferences from the Bluetooth status menu.

Question 3

What’s a device driver? What are the three primary types of device drivers?

Answer 3

A device driver is software specially designed to facilitate the communication between macOS High
Sierra and a peripheral. These are the three primary types of device drivers:
a. Kernel extensions
b. Framework plug-ins
c. Standalone apps

Question 4

How does macOS High Sierra support third-party devices without needing third-party device drivers?

Answer 4

macOS High Sierra uses built-in generic drivers based on each device class. For example, generic
drivers for scanners and printers can be used instead of official third-party drivers.

Question 5

What can you infer about a connected peripheral if it doesn’t appear in the System Information app?

Answer 5

If a connected peripheral doesn’t appear in System Information, the issue is probably hardware related.
Troubleshoot accordingly.