In a state transition diagram, the states appear as rounded rectangles with the state names inside.

There are _____ modes of operation defined by NIST that are intended to cover virtually all the possible applications of encryption for which a block cipher could be used.

A. three B. five C. seven D. nine

Arrays must be __________ at the time they are __________.

a. sized, executed b. re-scoped, deleted c. initialized, declared d. compiled, typed e. None of these