[7.7] When physical acquisition methods fail, another alternative might be to extract data from backup files.

Question

BlackTom AI · Accepted Answer

The statement to evaluate is: 'When physical acquisition methods fail, another alternative might be to extract data from backup files.'
Option 1: True. In many incident response and digital forensics scenarios, if direct physical acquisition of a device is not possible (due to device damage, access restrictions, or other obstacles), analysts can pivot to extracting data from backup files. Backups often contain user data, system configurations, and logs that can illuminate user activity and timelines, enabling reconstruction of events even without a live image. This option leverages available recovery points and aligns with practical DFIR workflows where backups serve as a secondary data source.
Option 2: False. Saying this is never a viable alternative would be misleading. While backups may not perfectly mirror the current state or may be incomplete, encrypted, or unavailable, they still constitute a legitimate source of data in many cases. The claim that backups cannot be used in place of physical acquisition ignores scenarios where backups were created beforehand, or where cloud or enterprise backup ecosystems provide recoverable artifacts. Also, relying solely on backups might miss artifacts only present on a live, current acquisition, but that does not render backups invalid as an alternative option.
Additional nuance. Consider that backups may be outdated, tampered, or incomplete, and access to backups may be restricted by legal, organizational, or technical barriers. Therefore, when physical acquisition fails, extracting data from backups is a valid, though context-dependent, alternative worth pursuing, with awareness of its limitations.
In summary, option one is a practical alternative under many circumstances, while option two is too absolute and ignoring the legitimate role backups can play in data recovery and investigation.

EN.650.667.01.SP25 Quiz - Chapter 3

[7.7] When physical acquisition methods fail, another alternative might be to extract data from backup files.

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