When choosing a SAN fabric topology, which components can have the largest effect on data availability?
(Select two.)

A.
SFP speed

B.
number of ISLs between the switches

C.
switch firmware version

D.
number of switches

E.
power supply quantity

Explanation:
To ensure maximum data availability, EMC requires redundant physical and logical paths to prevent any single
point of failure.
http://www.emc.com/collateral/hardware/technical-documentation/h8074-fibre-channel-san-tb.pdf