A floating-point value always contains a __________.

In Excel, in the Function Arguments dialog box, what does it mean when an argument name displays in bold?

A) It must be a cell reference. B) It must be a number value. C) It is not required. D) It is required.

Which method for detecting certain types of attacks uses an algorithm to detect suspicious traffic, is resource intensive, and requires extensive tuning and maintenance?

A. brute force B. heuristic C. signature D. anomaly