____ solves the weak initialization vector (IV) WEP problem by rotating the keys frequently.

In Excel, a selected cell is indicated by a ________ border

A) thick, black B) thin, black C) thick, dark-green D) thin, dark-green

The logical relationship between radio buttons is maintained by objects of what class?

a. MutualExclusionGroup b. RadioButtonGroup c. Group d. ButtonGroup