a. How can attackers avoid the border firewall? b. How has the perimeter extended outside the site? c. How can firms react to this decline in the effectiveness of border firewall filtering? a....

a. How can attackers avoid the border firewall? b. How has the perimeter extended outside the site? c. How can firms react to this decline in the effectiveness of border firewall filtering?

a. Distinguish between signature detection and anomaly detection. b. What is a zero-day attack? c. Why are zero-day attacks impossible to stop with attack signatures? d. What is the promise of anomaly detection? e. Why is anomaly detection becoming critical for firewalls?