Websites have rules that govern how a user may use its text and media, known as derivative works.

A 3-D reference has the following structure:

A) =worksheet name!cell reference B) ="worksheet name!cell reference" C) ='worksheet name!'cell reference D) =worksheet name?cell reference

A(n) ____________________ cipher is an algorithm that encrypts or decrypts blocks of data, such as 64-bit or 128-bit chunks of information at a time.

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