The Cisco CCNA Exploration curriculum provides a comprehensive overview of networking, from fundamentals to advanced applications and services. This course emphasizes theoretical concepts and practical application, giving students hands-on skills for designing, installing, operating, and maintaining real-world networks. Networking Fundamentals is the first course in the CCNA Exploration curriculum. While extensive online study resources and comprehensive textbooks are available, many students and instructors have requested a low-cost printed resource that can be used to study in places where Internet access may not be available. This booklet is that resource. Drawn directly from the online curriculum, it covers every skill and competency. This booklet enables students to study offline, highlight key points, and take handwritten notes. All topics are correlated directly to online web pages, helping students easily switch between offline and online content.