Protocol

A protocol is a set of rules that systems follow to communicate.

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Concept Neighborhood

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ARP

The most substantial related concept here, covered by 4 lessons.

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lessons

8 lessons cover this concept

Network Layers and Why They Matter

General Beginner

Network Identity: IP Addresses, MAC Addresses, and Attribution

General Beginner

Ports, Protocols, and Services

General Beginner

DNS Resolution and Name-to-Address Mapping

General Beginner

NAT, Routing, and Traffic Paths

General Beginner

Firewalls and Segmentation

General Beginner

Common Application Protocols and Defender Relevance

General Beginner

Thinking About Networks Like a Defender

General Beginner