Are there any A, Bnormal events in smart home scenarios? (Multiple choice)

• A.Fire Alarm
• B.A, Bnormal air quality
• C.Observe the pet
• D.Flooding

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Among the following options, the correct description for RFMesh is ().

• A.RF Mesh uses Mesh technology on the basis of RF technology
• B.RF Mesh physical layer adopts IEEE802.15.4 standard
• C.RF Mesh can relay signals to extend wireless coverage
• D.RF Mesh transmission layer uses TCP protocol to ensure reliable connection and realize neighbor discovery

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Among the following options, the problem that is not a smart manhole cover can deal with is ()?

• A.The manhole cover is missing
• B.Pavement flooding
• C.The communication cA, Ble is missing
• D.Personnel go down the well without permission

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Among the following options, the correct description for edge computing is ().

• A.Edge computing can meet the needs of users for real-time, intelligence, and data storage
• B.After the business and data are processed through edge computing, they do not need to be uploaded to the platform
• C.Edge computing is a computing node close to the terminal device or data source
• D.Edge computing can process all services and data on the terminal side

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The sensors used in the outdoor intelligent parking car detector are mainly ()?

• A.Geomagnetic sensor
• B.Camera
• C.Ultrasound
• D.Infrared

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