Access Controls Firewalls and VPNs

Upon completion of this material, you should be able to do the following: 8.1 Discuss the role of access control in information systems, and identify and discuss the four fundamental functions of access control systems. 8.2 Define authentication and explain the three commonly used authentication factors. 8.3 Describe firewall technologies and the various categories of firewalls. 8.4 Explain the various approaches to firewall implementation. 8.5 Identify the various approaches to control remote and dial-up access by authenticating and authorizing users. 8.6 Describe virtual private networks (VPNs) and discuss the technology that enables them.