220-1102 Practice Question: Used to detect faulty kernel-mode drivers.

Answer choices

Why each option matters

Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.

Answer analysis

Why the other options are wrong

Understanding why incorrect options are tempting is as important as knowing the correct answer.

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  Device Manager

  Device Manager allows you to view device status and roll back drivers, but it does not actively stress-test or verify driver stability. The question asks for a tool to 'verify if the driver is causing the issue' through active testing.

• ✗

  Windows Memory Diagnostic

  Windows Memory Diagnostic is used to test RAM for errors, not to verify driver stability.

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  System Restore

  System Restore can revert system files to a previous state, but it does not actively identify or verify which driver is causing the issue; it applies a restoration point.

Technical deep dive

How to think about this question

Driver Verifier is a powerful diagnostic tool built into Windows, accessed via `verifier.exe`, specifically designed to detect and troubleshoot faulty kernel-mode drivers. In this scenario, where a new video driver is causing a `VIDEO_TDR_FAILURE` blue screen, Driver Verifier is the ideal choice because it actively monitors and stress-tests drivers for illegal function calls, memory corruption, and other behaviors that can lead to system instability. When configured to monitor the suspect video driver, it will intentionally subject the driver to various stress conditions, such as simulating low memory conditions, forcing memory allocations from a special pool, and checking for proper synchronization and resource handling. If the driver exhibits any problematic behavior, Driver Verifier will immediately trigger a system crash (a bug check) with specific details, providing a clear indication that the monitored driver is indeed the culprit. This immediate crash, rather than a delayed or ambiguous one, helps pinpoint the exact point of failure. The ability to boot into Safe Mode is crucial here, as it allows the technician to run `verifier.exe` and configure it without the problematic driver fully loading and crashing the system prematurely. Once configured, a subsequent normal boot attempt will engage Driver Verifier's monitoring. This active testing differentiates it significantly from the other options. Device Manager, while useful for viewing driver status and rolling back drivers, does not actively stress-test or verify driver stability; it's a management interface. Windows Memory Diagnostic is entirely unrelated, focusing on RAM integrity rather than driver software. System Restore, while capable of reverting the system to a previous working state and potentially resolving the issue, does not actively diagnose or verify *which* specific driver is causing the problem through testing; it simply undoes changes. The question specifically asks to "verify if the new driver is causing the issue," which aligns perfectly with Driver Verifier's diagnostic capabilities.

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