In which situation would you be required to change a Cisco UCS system from end-host mode to
switching mode?

A.
Design requirements call for the use of fabric failover.

B.
Fabric interconnect is connecting to disjoint Layer 2 networks upstream.

C.
HSRP routers are directly connected to the fabric interconnect.

D.
Upstream Cisco Nexus 5000 is configured for vPC.