How can a master server be configured to make a secondary server request zone transfers immediately after a zone change?

Recursion often is preferable to iteration because ________.

a. it is faster. b. it requires less memory. c. it models the problem more logically. d. All of the above.

You should make sure that unavailable screen options are either dimmed (also called ____) or removed.

A. grayed B. hidden C. suppressed D. blanked