Introduction to Computer Networking – Beginner Crash Course

Module 1: Introduction to Networking & Models

⏳ 45 minutes

• Define networking fundamentals: nodes, media, and protocols.

• Compare the OSI vs. TCP/IP models and their layers.

• Explore real-world examples of network traffic flow.

Module 2: Ethernet, LANs & WANs

⏳ 1 hour

• Understand Ethernet framing and MAC addressing.

• Configure LAN topologies: star, bus, and ring.

• Introduce WAN technologies: MPLS, VPN, and leased lines.

Module 3: IP Addressing & Subnetting

⏳ 1 hour

• Learn IPv4 addressing structure and CIDR notation.

• Calculate subnet masks and network/host ranges.

• Intro to IPv6 addressing and transition mechanisms.

Module 4: Switching Fundamentals

⏳ 1 hour

• Explain switch operation, CAM tables, and frame forwarding.

• Configure VLANs for network segmentation.

• Use trunking protocols (802.1Q) to carry multiple VLANs.

Module 5: Routing Basics

⏳ 1 hour

• Distinguish static vs. dynamic routing.

• Explore routing tables and packet forwarding decisions.

• Overview of common protocols: RIP, OSPF, and EIGRP.

Module 6: Wireless Networking & Security

⏳ 45 minutes

• Compare Wi-Fi standards (802.11a/b/g/n/ac/ax).

• Configure SSIDs, channels, and encryption methods (WPA2/WPA3).

• Understand authentication and access control for wireless.

Module 7: Network Security Essentials

⏳ 45 minutes

• Identify common threats: DDoS, spoofing, and MITM attacks.

• Implement basic protections: firewalls, ACLs, and port security.

• Introduce VPNs and secure remote access technologies.

Module 8: Troubleshooting & Diagnostic Tools

⏳ 1 hour

• Use tools like ping, traceroute, and nslookup for diagnostics.

• Analyze packet captures with basic Wireshark techniques.

• Develop a structured approach for identifying and resolving issues.

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