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A new 5 MB file was backed up by Time Machine yesterday. Today the file was edited, and has grown to 6 MB. It is about to be backed up by Time Machine again. How does Time Machine perform this backup?

A. Time Machine copies the 6 MB file to the backup drive, and deletes the original backup copy of the file from the backup drive.

B. Time Machine copies the 6 MB file to the backup drive, and keeps both the new backup file and the original backup file on the backup drive.

C. Time Machine identifies the 1 MB of file changes, copies those changes to a new file on the backup drive, and keeps both the new backup file and the original backup file.

D. Time Machine identifies the 1 MB of file changes, copies those changes to a new file on the backup drive, then creates a 500 KB parity file, and keeps all three files: the two new files representing the 1 MB of file changes, and the original backup file.

You want to delete several applications by dragging them to the Trash. What fact should you be aware of?

A. Some applications install files outside the Applications folder, so dragging an app to the Trash may not remove all of its files.

B. User data for apps purchased in the Mac App Store will also be deleted when the app is dragged to the Trash.

C. You must restart the Mac in order to permanently delete applications from the Trash.

D. Apps purchased in the Mac App Store cannot be dragged to the Trash.

You want to manage configuration profiles on a Mac that has Mountain Lion installed, but the Profiles preferences icon is NOT present in the System Preferences window. What is a likely explanation?

A. There are no profiles installed on the Mac.

B. Profiles have been disabled in the Security and Privacy pane of the Mac.

C. The Mac is not enrolled with Profile Manager.

D. You are not logged in as an administrator user.

Which statement best describes how Time Machine stores files from an OS X Mountain Lion computer, when backing up to a directlyconnected FireWire hard disk drive?

A. Each file is saved to the external hard disk once. Files that do not change between backups are represented by hard links to save space.

B. Each file is saved to the external hard disk once. Files that do not change between backups are represented by symbolic links to save space.

C. Each file is saved to the external hard disk once. File changes are stored in a database on the external hard disk.

D. Each file is rewritten to the external hard disk during each backup.

For the Messages app to initiate a screen sharing session between two OS X computers, screen sharing must be enabled in the Sharing preferences on at least one of the two computers.

A. True

B. False