Network Security Methods

Explain key methods of network security: authentication, encryption, firewalls, and MAC address filtering.
Provide examples to explain how each security method operates and identify appropriate use cases.
Understand how these methods can be layered to provide a stronger security posture.
Describe a firewall as a security device that monitors and controls incoming and outgoing network traffic based on strict security rules.
Explain that MAC address filtering controls network access based on the physical address embedded within a device's network adapter.

What you need to know