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EC-Council

312-49 · Question #507

Which of the following technique creates a replica of an evidence media?

The correct answer is C. Bit Stream Imaging. Bit Stream Imaging (also called forensic imaging or disk cloning) creates an exact sector-by-sector, bit-for-bit duplicate of an entire storage media, including deleted files, slack space, unallocated space, and file system metadata. This is the forensically sound method for…

Submitted by tyler.j· Apr 18, 2026Disk Forensics

Question

Which of the following technique creates a replica of an evidence media?

Options

  • AData Extraction
  • BBackup
  • CBit Stream Imaging
  • DData Deduplication

How the community answered

(34 responses)
  • A
    3% (1)
  • C
    94% (32)
  • D
    3% (1)

Explanation

Bit Stream Imaging (also called forensic imaging or disk cloning) creates an exact sector-by-sector, bit-for-bit duplicate of an entire storage media, including deleted files, slack space, unallocated space, and file system metadata. This is the forensically sound method for replicating evidence because it preserves everything on the original media. A standard Backup only copies active files and does not capture deleted data or unallocated space. Data Extraction pulls specific data out rather than replicating the whole media. Data Deduplication eliminates redundant data, making it unsuitable for forensic replication.

Topics

#Digital Forensics#Evidence Acquisition#Forensic Imaging#Bit Stream Imaging

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