Which of the following operators can not be overloaded?

Which of the following is true about a while loop?

A. The body of the loop is executed at least once. B. The logical expression controlling the loop is evaluated before the loop is entered and after the loop exists. C. The body of the loop may not execute at all. D. It is a post-test loop

Tripwire is an example of a ____ system.

A. Linux B. AIX C. intrusion detection and prevention D. operating