The ____ symbol indicates that a page has been edited since the last time it was saved, as shown in the accompanying figure.

Some drive letters, such as the letter ____ that is typically used with the primary hard drive, are usually consistent from computer to computer and do not change even if more storage devices are added to the computer.

A. A B. B C. C D. H

When a browser connects to a secure Web page, the Web server sends a copy of its _______________.

Fill in the blank(s) with the appropriate word(s).