A common concern with using firewalls is that they will slow communications. If a firewall is installed properly, it should operate at network speed and not slow communications. Explain two o

A common concern with using firewalls is that they will slow communications. If a firewall is installed properly, it should operate at network speed and not slow communications.

• Explain two or more techniques that can be used to improve a firewall's performance.
  • Under what circumstances would you suggest using each technique?
• Explain four security strategies used for firewalls.
  • Which two strategies would you favor implementing, and why?
  • Should you have more than one firewall? If so, how would you layer them for the greatest network security?