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Apple OS X Support Essentials 10.9 Sample Questions:

1. How do you engage Quick Look? Which applications support it?

A) The Activity Monitor application is used to monitor open processes and applications.
B) You can use the System Information application to easily scan all the appropriate application locations and return a list of installed applications.
C) Quick Look is engaged by simply pressing the Space bar when a document is selected. Applications that support Quick Look include the Finder, Time Machine, Mail, and most open and save browser dialogs.
D) The Privacy pane of Security & Privacy preferences can be used to allow or disallow applications' access to Location Services, Contacts, Calendars, Reminders, social network services, and Accessibility application access.

2. Why might a previously backed-up item no longer be available in Time Machine?

A) A previously backed-up item won't be available if your backup volume filled up and Time Machine had to start deleting older items to make room for newer items.
B) Any item downloaded using one of the built-in OS X applications will be marked for quarantine. Third-party applications may not mark downloaded items for quarantine.
C) The default folders in a user's home folder are Desktop, Documents, Downloads, Library (hidden), Movies, Music, Pictures, and Public. Optional home folder items include Applications and Sites folders.
D) To verify a specific service is available from a service provider, first use the Network Utility Ping tab to verify basic connectivity. Then use the Network Utility Port Scan tab to verify the specific service port(s) are open. You should always limit the port scan to the specific ports required for the network service you're testing.

3. Where are the keychain files stored?

A) Spotlight metadata index databases are stored at the root of every volume in a
/.Spotlight-V100 folder. However, a Legacy FileVault user's database is stored in his
encrypted home folder. And the Mail application maintains its own database ineach user's
home folder at ~/Library/Mail/V2/MailData/Envelope Index. Spotlight plug-ins can be
located in any ofthe Library folders in a folder named Spotlight.
B) The master password is used to reset local account passwords.
C) Each user starts with a login keychain saved at /Users/<username>/Library/Keychain/
login.keychain and a Local
Items/iCloud keychain saved in the /Users/<username>/Library/Keychains/<UUID> folder.
Administrative users can manage systemwide authentication assets with the
/Library/Keychain/System.keychain. Finally, Apple maintains several items in
/System/Library/Keychains/ for OS X system use.
D) A Safe Boot performs the following permanent actions:attempting to repair the system
volume structure, deleting system KEXT caches, and deleting font caches.

4. How do you start up an OS X Mountain Lion computer in single-user mode?

A) Hold down Command-S while the computer restarts.
B) Start up from the Mountain Lion Recovery system partition, and enter the command reboot -single in Terminal.
C) Select Single-User Mode in the Startup Disk pane of System Preferences and restart the computer.
D) Hold down Shift-Option while the computer restarts.

5. The system version, build number, and hardware serial number are located in the About This Mac dialog or the login screen. The system version number defines the specific version of OS X currently installed. The system build number is an even more specific identifier used primarily by developers. Finally, the hardware serial number is a unique number used to identify your specific Mac.

A) How can you reset a user's home folder permissions?
B) What are the system requirements for using FileVault 2?
C) Where can you locate the system version number, build number, andserial number? What's the significance of these numbers?
D) How can you acquire the OS X Mavericks installer?

Solutions: