____ is the total actual cost incurred while performing work on a task during a given time period.

A(n) ____ is a type of utility software that captures unsolicited e-mail messages before they reach your Inbox.

A. filter B. spam filter C. antivirus D. scan filter

The goal of the ____ memory allocation algorithm is to find the smallest memory block into which a job will fit.

A. smallest-fit B. first-fit C. dynamic-fit D. best-fit