Among the following options, which belongs to the system reliability ()?

• A.Data encryption port
• B.Sensitive information shielding
• C.Virtual machine reliability
• D.Flow control

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Huawei proposed the "1+2+1" loT architecture and has provided ()commercial solutions? (multiple choice)

• A.Smart water meter
• B.Smart home
• C.Smart parking
• D.Smart lighting

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When the terminal uses the NB-IoT solution to access, what is the protocolType field in the profile file of the platform?

• A.CoAP
• B.MQTT
• C.ZigBee
• D.Z-Wave

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Relay protection, which acts on switches (circuit breakers), is mainly used for line protection in sections between substations, isolates short-circuit faults, and protects primary equipment (transformers, switches) from damage

• A.True
• B.False

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eLTE-IoT improves anti-interference ability through () technology?

• A.Frequency hopping technology
• B.Time domain retransmission mechanism
• C.Small packet fast transmission technology
• D.Power spectral density increase

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