When a switching device port running the MSTP protocol receives a configuration BPDU, it will be compared with the global configuration message saved by the device. If the newly received configuration BPDU is better, the global configuration message saved by the switching device will be updated synchronously; otherwise, the configuration BPDU will be discarded.

As shown in the figure, RED calls ip as-path-filter1 in the inbound direction, then the route 10.0.0.0/24 will be learned by RE_D from the path _________. (Please fill in 1 or 2)

All single switches in the stack system are called member switches and can be divided into different roles according to their functions. Please match the roles of the following member switches with their functions.

Which of the following descriptions about the Master device in the VRRP protocol is wrong?

Which of the following values can be set for the security level of the security zone customized by the USG series firewall? (Multiple choice)