Question: 1
PLC communication technology refers to a communication method that uses power lines to transmit data and media signals. (judge)
Question: 2
Which of the following descriptions about ZigBee is wrong?
Question: 3
Which of the following options are the characteristics of the IoT connection management platform? (Multiple choice)
Question: 4
Which of the following options is not operated on SPPortal? (Single choice)
Question: 5
In device management, what protocol does SPPortal use to send messages to DMServer? (Single choice)