Which of the following ports does not belong to the ports that need to be opened?

A financial customer wants to configure the DME IQ service to perform daily management of flash storage. Before setting up DME IQ, it is necessary to open the server port of the DME IQ cloud to ensure that the storage device can send HTTP requests to the DME IQ cloud normally.

Which of the following ports does not belong to the ports that need to be opened?
A . 8448/TCP
B . 8900/TCP
C . 7448/TCP
D . 9448/TCP

Answer: B