A(n) ______ often uses prewritten hacking and cracking programs.

(char)('a' + Math.random() * ('z' - 'a' + 1)) returns a random character __________.

a. between 'a' and 'z' b. between 'a' and 'y' c. between 'b' and 'z' d. between 'b' and 'y'

Occasionally, Jim has been unable to make a bounding box appear when selecting a layer. What do you tell him is likely the cause?

a. The layer was locked. b. The layer was transformed. c. The layer was active. d. The layer had been converted from a Background layer to a regular layer.