220-801 · Question #440
An example of built-in system diagnostics includes which of the following?
The correct answer is B. Indicator lights. Indicator lights are built-in hardware diagnostics that provide immediate visual status feedback without requiring any external tools.
Question
An example of built-in system diagnostics includes which of the following?
Options
- APOST cards
- BIndicator lights
- CTPM
- DBIOS settings
How the community answered
(46 responses)- A2% (1)
- B93% (43)
- D4% (2)
Why each option
Indicator lights are built-in hardware diagnostics that provide immediate visual status feedback without requiring any external tools.
POST diagnostic cards are external expansion cards inserted into a slot to read POST codes; they are add-on tools, not built-in components.
Indicator lights - such as power LEDs, hard drive activity LEDs, and diagnostic POST LED banks on motherboards - are integrated directly into the hardware by the manufacturer to signal operational status, error conditions, or component health. Because they are physically part of the device, they qualify as built-in system diagnostics available at any stage of the boot process.
TPM (Trusted Platform Module) is a dedicated security chip used for cryptographic key storage and platform integrity, not a diagnostic facility.
BIOS settings is a configuration interface for hardware parameters; while it can display some system information, it is not itself a diagnostic tool.
Concept tested: Built-in hardware diagnostic indicator lights
Source: https://learn.microsoft.com/en-us/windows-hardware/drivers/bringup/boot-and-uefi
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