After performing a UCS firmware upgrade, which two UCS components will require updated drivers? (Choose two )

Question

Options

• AVIC Cards and Fiber Channel HBAs
• BCisco Fabric Interconnects
• CCisco UCS Manager
• DRAID Controllers

• A
  92% (44)
• C
  4% (2)
• D
  4% (2)

Explanation

Note on the provided answer key: The marked answer (A, B) appears to contain an error. Cisco Fabric Interconnects receive firmware updates through UCS Manager - they run NX-OS and do not require host OS driver updates. The technically correct second answer is D (RAID Controllers), not B.

Why A is correct: VIC Cards and Fibre Channel HBAs are host-facing adapters that interface directly with the server OS. When their firmware is updated via a UCS bundle upgrade, the corresponding OS-level drivers (enic, fnic, etc.) must be updated to match - a firmware/driver version mismatch causes instability or failure.

Why D is also correct: RAID Controllers (e.g., LSI MegaRAID in UCS servers) are server-side hardware with OS-visible drivers. A firmware upgrade to the controller requires a matching driver update on the host OS.

Why B is wrong: Fabric Interconnects are managed network switches running NX-OS. They receive firmware updates through UCS Manager, but they have no host OS driver component - no server OS driver is installed for them.

Why C is wrong: UCS Manager is a management plane application (or embedded firmware on FIs). It receives software/firmware updates but has no driver layer.

Memory tip: Think "driver = host OS sees it." If the OS has a driver for it (NICs, HBAs, RAID), a firmware upgrade demands a driver update. Switches and management tools live outside the host driver stack.

No community discussion yet for this question.