What is the preferred order of steps when upgrading the Cisco UCS Manager to ensure a least- disruptive upgrade to the data plane (application I/O traffic)?

What is the preferred order of steps when upgrading the Cisco UCS Manager to ensure a least- disruptive upgrade to the data plane (application I/O traffic)?

A.
Apply the host firmware policy with the latest BIOS to the running switch processor with the default maintenance policy.

B.
Activate the subordinate FI, wait until the IOM’s are on line, and activate the remaining FI.
15 Cisco 642-994 Exam

C.
Update and activate the IOMs. Set startup.

D.
Activate the Cisco USC Manager firmware.

E.
Update and activate the CIMCs and adapters. Set Startup.

F.
E, B, D, C, A

G.
E, A, C, D, B

H.
E, D, C, B, A

I.
E, C, D, B, A

Explanation: