Q1: What are the main reasons why a VPN is the right solution for protecting the network perimeter? Do they also provide protection for mobile devices?

Q2: In no less than 250 words, explain the difference between an access control list (ACL) that is used in routers to block traffic and firewalls.  What similarities do they share?  Respond to two other learners by the end of the week.

Q3: Explain the role of firewalls as part of a computer and network security strategy. List the key characteristics of firewalls. Discuss the various basing options for firewalls. Understand the relative merits of various choices for firewall location and configurations.