Which of the following terms is a small text file that Web sites put on your computer to store information about you?

The AES cipher begins and ends with a(n) _________ stage because any other stage, applied at the beginning or end, is reversible without knowledge of the key and would add no security.

A. Substitute bytes B. AddRoundKey C. MixColumns D. ShiftRows

When you point to a command on the ribbon, the command becomes outlined or shaded, and a ScreenTip appears on the screen.

Answer the following statement true (T) or false (F)