Security Fundamentals

Lesson 4Understanding Network Security

Lesson Skill Matrix

Technology Skill	Objective Domain Description	Objective Domain Number
Using Dedicated Firewalls to Protect a Network	Understand dedicated firewalls	3.1
Using Isolation to Protect the Network	Understand network isolation	3.2
Protecting Data with Protocol Security	Understand protocol security	3.3
Understanding Denial-of-Service Attacks	Understand protocol security	3.3
Securing the Wireless Network	Understand wireless security	1.4

Key Terms

• application-level firewalls
• ARP spoofing
• Back door attack
• Buffer overflow attack
• circuit-level firewalls
• cross-site scripting ...