APP scan code need to get () information? (multiple choice)

Which of the following states does not belong to the PSM power saving mode?

OBD uploads the data to the Internet of Vehicles cloud service platform through the mobile network, and provides the account number of the iot application server. The password is generated in ()

Are there any abnormal events in the smart home scene ()? (choose multiple)

The sub-channel bandwidth of NB-IoT includes ()? (multiple choice)