1. (100 words) 2. 3. 4. What do you mean by Router Security areas and what are they? Briefly list out 5 router hardening techniques What do you mean by DMZ? What is the purpose of creating DMZ within a secured network? 50 words] [50 words] 5. Briefly explain the following Outbound ACL Yes Test ACL Routing Table Entry? No ACL? No Permit? Yes Yes No Discard Packet Bucket 6. Briefly explain the following diagram based on the firewall design for 3 or more interfaces. Address security as much as possible. Firewall system DMZ net External-DNS/ SMTP gateway Public FTP server Internet Router Firewall Public web server ntemal net Switch or router Local area network Local area network End-user workstations Internal Groupware Intranet DINS and DHCP server server