hce_kmu
113年
計算機概論與程式設計
第 30 題
In the Internet of Things (IoT), what is the MQTT protocol?
- A MQTT is a protocol for communication between IoT devices, with its main feature being the ability to provide real-time communication.
- B MQTT is a protocol for communication between IoT devices, with its main feature being to provide efficient low-power communication.
- C MQTT is a protocol for communication between IoT devices, with its main feature being to provide highly secure communication.
- D MQTT is a protocol for communication between IoT devices, with its main feature being the ability to provide wide-area network communication.
- E MQTT is a protocol for communication between IoT devices, with its main feature being to provide highly scalable communication.
思路引導 VIP
試著想像一個情境：如果你需要為一個安裝在偏遠山區、僅靠一顆小電池運作且網路極不穩定的感測器設計通訊方式，為了讓這顆電池能維持運作長達一年，這個通訊協定在傳輸資料時，應該具備什麼樣的特性來節省電力並應對微弱的訊號？
🤖
AI 詳解
AI 專屬家教
太棒了！你能精準選出選項 (B)，代表你對於物聯網（IoT）設備的運作環境與需求有很扎實的理解。
MQTT 的核心優勢：輕量與節能
MQTT（訊息隊列遙測傳輸，Message Queuing Telemetry Transport） 協定之所以在物聯網領域大放異彩，核心原因在於它的「輕量化」設計。與傳統的 HTTP 協定相比，MQTT 的標頭（Header）極小，且採用了**發佈/訂閱（Publish/Subscribe）模式，這能顯著降低網路頻寬的佔用與硬體的運算負擔。對於許多依賴電池供電、運算資源有限的感測器節點來說，這種高效率且低耗能（Low-power）**的通訊特性，是確保設備能長時間穩定運作的關鍵因素。
▼ 還有更多解析內容