The mac address of the existing switch is shown in the figure. Which of the following statements is correct ()? (Multiple Choice Questions)

There is no channel overlap in the 14 available frequency bands in the 2.4GHz frequency band. ()

In the network shown in the figure below, the router receives a data packet with a destination IP address of 11.0.12.1 from host A.
This data packet is forwarded by the router. What are the destination mc and destination IP? () (Single-choice question)

Which of the following OSCan PF protocol packets ensure the reliability of LSA update? ()

On the VRP platform, which of the following methods can be used to access previous historical commands? ()