Which component is upgraded during the infrastructure firmware upgrade stage?

A network engineer plans to upgrade the firmware of a Cisco UCS B-Series chassis by using the Auto Install feature .

Which component is upgraded during the infrastructure firmware upgrade stage?
A . Cisco IMC
B . Adapter
C . I/O module
D . BIOS

Answer: C

Explanation:

https://www.cisco.com/c/en/us/td/docs/unified_computing/ucs/ucs-manager/GUI-User-Guides/Firmware-Mgmt/4-0/b_UCSM_GUI_Firmware_Management_Guide_4-0/b_UCSM_GUI_Firmware_Management_Guide_4-0_chapter_0100.html

https://www.youtube.com/watch?v=g-4OgYigvRI