BSS 通信需要接入点 | AI生成和翻译
Question: If a mobile device within a BSS wants to communicate with devices outside this BSS, it must go through the __ within this BSS.
A. AP B. APS C. SAP D. Hub
Answer: A Your answer: A
Detailed Explanation:
When a mobile device within a BSS (Basic Service Set) needs to communicate with devices outside its BSS, it must go through the AP (Access Point) within that BSS.
Key Concepts:
BSS (Basic Service Set):
- wireless local area network (WLAN) 中的基本单元
- 由一个或多个 mobile devices 和一个 AP 组成
- 形成一个单一的无线覆盖区域
Communication within BSS:
- mobile devices 可以通过无线信道直接相互通信
- 在某些配置中,BSS 内部通信无需通过 AP
Communication outside BSS:
- mobile devices 必须 使用 AP 作为中介
- AP 充当连接外部网络的 bridge/gateway
- 数据流向:Mobile Device → AP → External Network → Destination Device
Role of the AP:
- 作为一个关键的 relay point
- 实现无线 BSS 与有线/外部网络之间的连接
- 管理其 BSS 内设备的 authentication、association 和 routing
In summary,AP 作为 gateway,允许 BSS 内的无线设备访问资源并与本地无线网络之外的设备进行通信。