Your friend called and told you that he saw information about the classified XYZ program on the Internet. As a cleared employee who does not work on the XYZ program, is it okay for you to view that information on the Internet since it's already in the public domain?

The answer is "Yes, you can access the information because you're a certified employee".

Explanation:

The term "public domain" relates to content that isn't covered by copyright, trademarks, or patents. In other words, it relates to artistic material.  Its public, not for the single writer or artist, which can hold these works.  

In this, everyone is authorized for using public domain work but no one is ever allowed to use it, but only the certified employee can use it, that's why you can access the details because you're certified.

professionals can use many types of technology that can them. some examples are, computers (they research and can use for programs for data, they are also used for job applications, school work, and even to make new ideas), speedometers (can get data for unknown data), sometimes something as small as a pen (used for rough drafts, to insert data, and again job applications).