One of the building blocks of successful IT security practices is a fundamental understanding of network security. This course introduces key concepts about dedicated firewalls and methods including packet filtering, circuit-level, application-level, and stateful multilevel firewalls. This course also covers types of inspection, and stateful v. stateless inspection. Finally, this course covers best practices for Network Access Protection, network isolation methods, and protocol security concepts including common network attack methods. This course is one of a series in the Skillsoft learning path that covers the objectives for the Microsoft Security Fundamentals: MTA 98-367 exam.