If you delete a selection by accident, press ____ to bring the selection back.

What type of attack are stateless packet filters particularly vulnerable to?

A. attempts to connect to ports above 1023 B. attempts to connect to the firewall C. IP spoofing attacks D. attempts to connect to ports below 1023

Write a program checkLuminance that will input red, green, and blue values, and compute the luminance using the weighted average (as below). But then print out a warning to the user based on the computed luminance:

• If the luminance is less than10, “That’s going to be awfully dark.” • If the luminance is between 50 and 200, “Looks like a good range.” • Over 250, “That’s going to be nearly white!”