Which set of steps must be taken to upgrade the fabric to the new release?

A customer must upgrade the Cisco ACI fabric to use a feature from the new code release. However, there is no direct path from the current release to the desired one. Based on the Cisco APIC Upgrade/Downgrade Support Matrix, the administrator must go through one intermediate release.

Which set of steps must be taken to upgrade the fabric to the new release?
A . Upgrade the APICs to an interim release.
Upgrade the switches to an interim release.
Upgrade the APICs to the targeted release.
Upgrade the leaf and spine switches to the targeted release.
B. Upgrade the APICs to an interim release and then switches to an interim release.
When all switches are operational, upgrade leaf switches to the targeted release.
Upgrade the spine switches to the targeted release.
Upgrade the APICs to the targeted release.
C. Upgrade the APICs to an interim release.
Upgrade the leaf switches directly to the targeted release.
Upgrade the spine switches directly to the targeted release.
Upgrade the APICs to the targeted release.
D. Upgrade the APICs directly to the targeted release.
Upgrade the switches to an interim release.
When all switches are operational, upgrade the leaf switches to the targeted release.
Upgrade the spine switches to the targeted release.

View Answer

Answer: A