A(n) ____ is a method variable that stores an argument, so that the receiver of the message can access that argument.

The goal of _____________ is to provide authentication of DNS data and ensure integrity of DNS data.

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

The Properties dialog box always will have the ____ tab, although what it displays may differ.?

A. ?Previous Versions B. ?General C. ?Command D. ?Quota