Your current VCS fabric comprised of Brocade VDX 8770s is running NOS 4.0.0b in logical
chassis mode. You would like to upgrade the firmware with no impact to L2 traffic. Which two
procedures would accomplish this task? (Choose two.)

A.
Download the firmware to each of the switches individually with the default settings.

B.
Download the firmware to the logical switch and use the auto-activate parameter to
activate the firmware.

C.
Download the firmware to the logical switch then activate each RBridge.

D.
Download the firmware to each switch individually with the auto-activate parameter to
activate the firmware.