Pencil Grayscale and Paint Brush are examples of artistic effects

Place the following steps of a botnet attack into correct order

I. First A. A spammer (or criminal) buys access to the botnet from the botmaster II. Second B. The botmaster or spammer sends instructions to the infected PCs using the IRC server, which triggers them to send out spam messages to other servers III. Third C. A botmaster sends out viruses to infect computers IV. Fourth D. Infected PCs follow instructions to log in to an IRC server

A loop's ____ variable is a numeric variable that keeps track of the number of iterations the loop completes.

A. compound B. accumulated C. matrix D. control