Port scanning provides the state for all but which of the following ports?

Which of the following statements best describes Kerberos?

A. A federation of third-party suppliers that use a single sign-on B. A method of sharing information between network resources C. A method of maintaining network usage integrity D. An authentication, single sign-on protocol

____ allows for faster turnaround of CPU-bound jobs.

A. No movement between queues B. Movement between queues C. Variable time quantum per queue D. Aging