The ____ filters add or remove noise and help blend a selection into the surrounding pixels.

The insertion operation of the ADT list can insert new items ______.

a) only at the front of the list b) only at the end of the list c) only in the middle of the list d) into any position of the list

Which of the following is true when comparing Norton Firewall with McAfee Personal Firewall?

A) Norton Firewall is easy to use whereas McAfee Personal Firewall is not easy to use. B) Norton Firewall can block outbound traffic whereas McAfee Personal Firewall cannot block outbound traffic. C) Norton Firewall allows you to scan your system for vulnerabilities whereas McAfee Personal Firewall does not have this option. D) Norton Firewall is free whereas McAfee Personal Firewall is a commercial product.