Once power is applied to the chassis, what is the next sequence after MM completes booting?

Question

Options

• A12 V DC Rail on.
• BPSU firmware starts.
• CLoad the LCD panel.
• DMM uboot starts.

• A
  3% (1)
• B
  3% (1)
• C
  86% (31)
• D
  8% (3)

Explanation

After the Management Module (MM) completes its boot sequence, it initializes and loads the LCD panel (C) so the chassis can begin displaying status information to administrators - this is the next logical step in handing off from internal boot to user-facing output.

Why the distractors are wrong:

• A (12V DC Rail on) - This occurs very early in the power-up sequence, before the MM ever starts; it's a hardware prerequisite, not a post-boot step.
• B (PSU firmware starts) - PSU firmware activates when power is first applied to the chassis, well before the MM reaches its boot completion stage.
• D (MM uboot starts) - MM uboot is the MM's bootloader, meaning it fires at the beginning of the MM boot process, not after it finishes.

Memory tip: Think of the sequence as "hardware first, then firmware, then software, then display." The LCD panel is the first user-visible output, so it logically follows once the MM (the brain of the chassis) is fully operational and ready to communicate status.

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