What is Wireless?
Wireless
Overview
Wi-Fi uses a shared radio medium. Stations contend for airtime, and physical-layer rates differ from usable throughput. Signal, noise, channel occupancy and authentication all affect service. An SSID identifies a network but does not itself prove isolation or security.
Protocol stages
- 1Radio channel
- 2Association
- 3Authentication
- 4Shared airtime
Interactive exercise
Knowledge check
Doubling connected clients on a busy AP guarantees what?
Educational model — not real hardware, traffic or official certification.