The MFT File is a physical file on the disk that:

Question

Options

• AHas a backup located elsewhere on the disk
• BIs larger than 1mb, but less than 128mb
• CIs not part of the active partition, but resides in the boot sector
• DHas a btrieve engine format but is more efficient

• A
  76% (29)
• B
  3% (1)
• C
  5% (2)
• D
  16% (6)

Explanation

Option A is correct because NTFS maintains a backup called the MFT Mirror ($MFTMirr), a system file stored at a different location on the disk (typically near the volume's midpoint) that holds copies of the first critical MFT entries, allowing recovery if the primary MFT is damaged.

Option B is wrong because the MFT has no fixed size bounds - it grows dynamically as files are added, so it could be kilobytes on a nearly empty volume or gigabytes on a heavily used one. Option C is wrong because the MFT resides within the active NTFS partition as a special hidden system file ($MFT), not in the boot sector, which is a separate structure containing the Volume Boot Record. Option D is wrong because Btrieve is an entirely unrelated proprietary database engine from Pervasive/Novell - NTFS and the MFT have no connection to it whatsoever.

Memory tip: Think of the acronym - MFT Mirror ($MFTMirr) - NTFS literally names its backup file "Mirror," making it easy to remember that a backup copy exists elsewhere on the disk for fault tolerance.

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