1.
Disk Utility and System Information can both be used to gather information about storage devices.
2.
The volume formats supported as system volumes for OS X are Mac OS Extended (Journaled) and Mac OS Extended (Journaled, Encrypted).
3.
What's AirDrop, and how do you know if a specific Mac supports it?
4.
Bluetooth devices must be paired to each other for communication to occur. Bluetooth preferences in the System Preference application is responsible for pairing your Mac with Bluetooth peripherals. You can quickly open Bluetooth preferences from the Bluetooth status menu.
 
5.
The diagnostic reporting feature automatically creates a diagnostic report log any time an application crashes or hangs. The diagnostic report log can be viewed immediately, reported to Apple via the Internet, or viewed later in the /Applications/Utilities/Console application.
6.
If a connected peripheral doesn't appear in System Information, the issue is likely to be hardware related. Troubleshoot accordingly.
7.
How is 802.1X configured on OS X systems?
8.
How do you engage Quick Look? Which applications support it?

 
9.
What are four common issues that can interrupt network services on a Mac computer?
10.
It depends on the printer. From Printing & Scanning preferences, sometimes you can simply select a new printer driver from the Options & Supplies dialog. In many cases though, to select a new printer driver for a configured printer you must delete and then re-add the printer.