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Which two will allow a fully loaded Cisco MDS 9509 Multilayer Director to meet the 2190-W requirement? (Choose two.)
A.
two 110-V power supplies that are placed into active/standby power mode
B.
two 220-V power supplies in redundant mode
C.
two 110-V power supplies that are placed into combined power mode
D.
two 110-V power supplies in redundant mode