The network at work Wi-Fi, network security, troubleshooting tools, the cloud and automation, then a hands-on project building a full office network, and the certificate plan and the lab.
Lessons 0 Overview Wi-Fi, network security, troubleshooting tools, the cloud and automation, then a hands-on project building a full office network, and the certificate plan and the lab. 1 Wi-Fi: the network through the air Why Wi-Fi weakens behind a wall, how 2.4, 5 and 6 GHz differ, why you pick channels 1, 6 and 11, what Wi-Fi 7 added, and how WPA3 protects you. 2 Network security: walls, tunnels and attacks How a network decides who passes and who is stopped with ACLs and firewalls, how a VPN crosses the internet encrypted, and the common attacks at each layer with their defences. 3 Diagnostic tools and troubleshooting Ten commands that reveal most faults, a structured method that starts at the cable and climbs to the application, how traceroute discovers the path, and how to read packets yourself in Wireshark. 4 Modern networks: cloud and automation How a network is built in the cloud without a single cable, what software-defined networking is, why today's network engineer writes Python, and how to watch a whole network. 5 Hands-on project: build a small office network from scratch You pull everything together in one project built in the free Cisco Packet Tracer: an addressing plan, VLANs for staff, guests and cameras, routing between them, DHCP, an ACL that keeps guests away from staff, SSH instead of Telnet, then testing and documentation. This project is what you show in your first interview. 6 The roadmap, certificates and your lab How to turn what you learned into a plan: a plain two-week path and a sixteen-week technical one, how Network+ and CCNA differ with the weight of each topic, how to build your lab for free, and what comes after the certificate. 7 Wrap-up and resources The takeaways and glossary of this track.