Which term refers to data that may remain in a cluster after the original file has been overwritten by another file?

Which term refers to data that may remain in a cluster after the original file has been overwritten by another file?

• A. Sector
• B. Metadata
• C. MFT
• D. Slack Space

Answer: (D)

The concept tested is slack space—the unused portion of a disk cluster that can still hold remnants from previously stored data. When a file is stored, the filesystem allocates full clusters to hold it; the last cluster is often not completely filled by the file’s data. If another file overwrites that area, not every byte in the last cluster may be overwritten, leaving behind fragments of the original content in the slack space. This is why slack space can contain data remnants even after an overwrite, making it a potential source of evidence in forensic analysis. Sectors are smaller fixed units and don’t specifically describe leftover data within a cluster. Metadata and the MFT relate to data about files or the filesystem structure, not to residual contents inside a cluster after overwriting.

The concept tested is slack space—the unused portion of a disk cluster that can still hold remnants from previously stored data. When a file is stored, the filesystem allocates full clusters to hold it; the last cluster is often not completely filled by the file’s data. If another file overwrites that area, not every byte in the last cluster may be overwritten, leaving behind fragments of the original content in the slack space. This is why slack space can contain data remnants even after an overwrite, making it a potential source of evidence in forensic analysis.

Sectors are smaller fixed units and don’t specifically describe leftover data within a cluster. Metadata and the MFT relate to data about files or the filesystem structure, not to residual contents inside a cluster after overwriting.