mediumMultiple ChoiceObjective-mapped
220-1202 Practice Question: A customer calls the help desk stating that their…
A customer calls the help desk stating that their computer displays 'Bootmgr is missing' and will not start Windows. You suspect the Boot Configuration Data (BCD) is corrupted. Which command-line tool should you use from the Windows Recovery Environment to repair the BCD?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
bootrec /rebuildbcd
`bootrec /rebuildbcd`, which scans for Windows installations and rebuilds the BCD store. This is a standard repair for boot manager issues. Other commands are for disk checking, system file repair, or partition management.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
chkdsk /r
Why it's wrong here
The `chkdsk /r` command is designed to scan the specified disk volume for logical file system errors and physically bad sectors, attempting to recover readable information from any damaged areas. While crucial for maintaining data integrity and resolving file system corruption, this utility does not address issues related to the Boot Configuration Data (BCD) store or the boot loader itself. Therefore, it cannot resolve problems preventing the operating system from initiating the boot process.
- ✓
bootrec /rebuildbcd
Why this is correct
The `bootrec /rebuildbcd` command is the appropriate solution for repairing boot configuration issues, as it specifically scans all hard drives for compatible Windows installations and then adds them to the Boot Configuration Data (BCD) store. This process effectively reconstructs a corrupted or missing BCD, resolving common boot errors such as 'Bootmgr is missing' or when the system fails to locate the operating system. It ensures the boot loader has the correct entries to successfully start Windows.
- ✗
sfc /scannow
Why it's wrong here
The System File Checker (`sfc /scannow`) command is utilized to scan for and repair corrupted or missing protected Windows system files by replacing them with correct versions from the Windows component store. However, this utility requires a functional Windows operating system to be running, either normally or in the Windows Recovery Environment (WinRE) with a loaded OS. It cannot resolve issues that prevent Windows from booting in the first place, as its operation depends on an accessible and at least partially loaded OS environment.
- ✗
diskpart
Why it's wrong here
The `diskpart` command-line utility provides extensive capabilities for managing disk partitions, volumes, and drives, allowing users to create, delete, format, and assign drive letters. While essential for preparing storage devices for an operating system installation or managing existing partitions, it does not possess the functionality to repair or rebuild the Boot Configuration Data (BCD) or the Master Boot Record (MBR) directly. Its role is focused on the physical and logical structure of disk storage, not the boot loader configuration.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 220-1202 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 220-1202 exam.