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.

OverviewWi-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.
Wi-Fi: the network through the airWhy 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.
Network security: walls, tunnels and attacksHow 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.