About the course

This course teaches the core principles of networking in a simple and practical way for beginners. Students will learn how devices communicate, how IP addressing works, how data moves across local and wide area networks, and how key technologies like switches, routers, DNS, and protocols keep communication flowing. The goal is to make networking clear, useful, and directly relevant to cybersecurity and real-world technical work.

Curriculum

4 Chapters · 29 Lessons

  1. 1

    Chapter 1

    1. (Included in full purchase)

      What a Network Really Is

    2. (Included in full purchase)

      The OSI Model Without the Boredom

    3. (Included in full purchase)

      Encapsulation

    4. (Included in full purchase)

      LAN vs WAN vs Internet

    5. (Included in full purchase)

      NAT Explained

    6. (Included in full purchase)

      What a “Session” Is

  2. 2

    Chapter 2: IP Fundamentals

    1. (Included in full purchase)

      IPv4 Structure

    2. (Included in full purchase)

      Public vs Private IPs

    3. (Included in full purchase)

      Subnet Masks and CIDR

    4. (Included in full purchase)

      Subnet Masks and CIDR (Using site.com)

    5. (Included in full purchase)

      Default Gateway and Routing Basics (Using site.com)

    6. (Included in full purchase)

      ARP and Neighbor Discovery (IP → MAC)

    7. (Included in full purchase)

      Traceroute Thinking (Paths, Hops, and Where Things Break)

    8. (Included in full purchase)

      TCP Basics (Reliability and Why It’s “Connection-Oriented”)

    9. (Included in full purchase)

      TCP Handshake (SYN, SYN-ACK, ACK)

    10. (Included in full purchase)

      TCP States (LISTEN, ESTABLISHED, TIME_WAIT)

    11. (Included in full purchase)

      UDP Basics (No Handshake, Why It’s Used, and Where You’ll See It)

    12. (Included in full purchase)

      TCP vs UDP in Real Protocols

    13. (Included in full purchase)

      Ports Explained (Client ports vs Service ports)

  3. 3

    Chapter 3: DNS Explained

    1. (Included in full purchase)

      What DNS Really Does (and What It Does Not Do)

    2. (Included in full purchase)

      Record Types You Must Know (A, AAAA, CNAME, MX, TXT, NS)

    3. (Included in full purchase)

      Recursive vs Authoritative DNS

    4. (Included in full purchase)

      DNS Caching (Why answers feel “sticky” and how to prove it)

    5. (Included in full purchase)

      DNS Failures and Diagnosis

    6. (Included in full purchase)

      Quick Network Baseline (Operator Checklist)

    7. (Included in full purchase)

      Proving Connectivity the Right Way

    8. (Included in full purchase)

      Connection Visibility (Mapping Active Sessions and Owning Processes)

    9. (Included in full purchase)

      Packet Truth (tcpdump/Wireshark Basics)

  4. 4

    Chapter 4

    1. (Included in full purchase)

      THEORY ASSESSMENT (20 QUESTIONS)

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