You have just installed a new Brocade DCX 8510-4. After connecting the network cable to
the active CP, you run the firmwaredownload command using FTP and it fails repeatedly.
Which two methods resolve this problem? (Choose two.)

A.
Change from the administrator to the user login access level on the switch.

B.
Change to the USB stick to download the firmware file.

C.
Install a second network cable to the standby CP.

D.
Ensure all switches in the fabric have the same firmware revision.