Go back to 9L0-415 - OS X Support Essentials 10.9

Question :-

What are PPD files responsible for?
PostScript Printer Description (PPD) files are printer driver files that instruct the CUPS system on how to communicate with specific printer models.
If a client sharing service is compromised, an unauthorized user can control your Mac and execute unwanted applications or processes.
The Finder hides traditional UNIX resources from average users because they don't need to have access to those items. If users need access to these UNIX items, they can access them from Terminal.
Common UNIX Printing System (CUPS) manages all printing for OS X, including both local and shared printing.

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