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220-802 · Question #494

A technician has found bad sectors on a hard drive. Which of the following command line tools could MOST likely remap bad sectors to fix this hard drive issue?

The correct answer is B. CHKDSK. CHKDSK is the Windows command-line utility that scans a disk for file system errors and can remap bad sectors by marking them as unusable and redirecting data to healthy sectors.

Hardware and network troubleshooting

Question

A technician has found bad sectors on a hard drive. Which of the following command line tools could MOST likely remap bad sectors to fix this hard drive issue?

Options

  • AFIXMBR
  • BCHKDSK
  • CDISKPART
  • DFDISK

How the community answered

(26 responses)
  • B
    88% (23)
  • C
    8% (2)
  • D
    4% (1)

Why each option

CHKDSK is the Windows command-line utility that scans a disk for file system errors and can remap bad sectors by marking them as unusable and redirecting data to healthy sectors.

AFIXMBR

FIXMBR writes a new Master Boot Record and does not interact with sector-level disk health.

BCHKDSKCorrect

CHKDSK /R locates bad sectors, recovers readable data, and instructs the file system to remap those sectors so they are no longer used, directly addressing the reported bad-sector problem. Running it with the /F flag additionally fixes file system errors found during the scan.

CDISKPART

DISKPART manages partitions and volumes but does not perform sector scanning or remapping.

DFDISK

FDISK is a legacy partition management tool with no capability to detect or remap bad sectors.

Concept tested: CHKDSK bad-sector detection and remapping

Source: https://learn.microsoft.com/en-us/windows-server/administration/windows-commands/chkdsk

Topics

#CHKDSK#bad sectors#hard drive repair#disk utility

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