220-1102 Practice Question: Troubleshooting a Windows 10 PC that fails to…

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

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  System File Checker (sfc /scannow)

  Why it's wrong here

  System File Checker (SFC) is a command-line utility designed to scan for and restore corrupted, changed, or damaged protected system files with correct versions. While crucial for maintaining the integrity of core Windows files and resolving issues stemming from file corruption, SFC operates at the file system level for these specific files. It does not interact with or possess the functionality to rebuild or repair the Boot Configuration Data (BCD) store, which is a distinct component responsible for managing boot options.

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  Diskpart

  Why it's wrong here

  Diskpart is a powerful command-line utility used for managing disk partitions, volumes, and virtual hard disks. Its primary functions include creating, deleting, formatting, and assigning drive letters to partitions, as well as managing storage pools and RAID configurations. However, Diskpart's capabilities are strictly limited to the manipulation of physical and logical disk structures; it does not include any tools or commands for diagnosing, repairing, or rebuilding the Boot Configuration Data (BCD) store.

• ✓

  Bootrec.exe

  Why this is correct

  Bootrec.exe is a specialized command-line tool specifically engineered for troubleshooting and repairing boot-related issues in Windows operating systems. When invoked with the `/rebuildbcd` switch, it performs a comprehensive scan of all disks for compatible Windows installations. It then allows the user to select which identified installations to add to a newly created Boot Configuration Data (BCD) store, effectively reconstructing the BCD and resolving critical errors such as a missing or corrupted BCD that prevent the system from booting.

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  CHKDSK

  Why it's wrong here

  CHKDSK (Check Disk) is a utility primarily used to verify the file system integrity of a volume and to fix logical file system errors, bad sectors, and lost clusters. While essential for maintaining data integrity and resolving issues like corrupted files or directories within a file system, CHKDSK operates exclusively at that level. It lacks the specific functionality to diagnose or repair problems with the Boot Configuration Data (BCD) store, which is a separate and distinct component of the Windows boot process.

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