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312-49 · Question #320

312-49 Question #320: Real Exam Question with Answer & Explanation

The correct answer is C: Create a sparse data copy of a folder or file. With four 30 TB SANs (120 TB total), performing a full bit-stream disk-to-disk or disk-to-image copy is impractical — it would require equivalent destination storage capacity and enormous time. A sparse data copy targets only specific folders or files relevant to the investigat

Submitted by diego_uy· Apr 18, 2026Disk Forensics

Question

You are contracted to work as a computer forensics investigator for a regional bank that has four 30 TB storage area networks that store customer data. What method would be most efficient for you to acquire digital evidence from this network?

Options

  • AMake a bit-stream disk-to-disk file
  • BMake a bit-stream disk-to-image file
  • CCreate a sparse data copy of a folder or file
  • DCreate a compressed copy of the file with DoubleSpace

Explanation

With four 30 TB SANs (120 TB total), performing a full bit-stream disk-to-disk or disk-to-image copy is impractical — it would require equivalent destination storage capacity and enormous time. A sparse data copy targets only specific folders or files relevant to the investigation, making it far more efficient for large-scale enterprise storage. Option D (DoubleSpace) is an obsolete MS-DOS compression utility, not a forensic acquisition method. Full bit-stream copies (A and B) are ideal for smaller media where a complete forensic duplicate is feasible.

Topics

#Digital evidence acquisition#Large-scale forensics#Sparse copying#Forensic efficiency

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