One tool used for a denial-of-service attack is ______________

When an arithmetic expression contains two or more different operators, such as * and +, the order in which the operations is done is determined by

A) left to right order. B) operator precedence. C) operator associativity. D) the programmer. E) the compiler.

When a headline is ____________________, it is positioned horizontally between the left and right margins on the page.

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