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2.
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Answer (Detailed Solution Below)

Option 2 : Background garbage collection and TRIM activity can alter unallocated space over time even without host writes

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Detailed Solution

सही उत्तर Background garbage collection and TRIM activity can alter unallocated space over time even without host writes है।

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PrepSnapprepsnap.in • Part -A

Question:

A forensic lab prioritizes imaging SSDs immediately on receipt rather than queuing them for days. What technical reason justifies this urgency? / फॉरेंसिक लैब SSDs को दिनों तक कतार में रखने के बजाय प्राप्त होते ही इमेजिंग को प्राथमिकता देती है। इस तात्कालिकता का तकनीकी कारण क्या है?

1.
SSDs lose all data within 48 hours when powered off
2.
Background garbage collection and TRIM activity can alter unallocated space over time even without host writes
3.
SSD controllers automatically encrypt the drive after 24 hours of idle time
4.
The SATA interface degrades the stored charge on NAND cells

Correct Answer: Background garbage collection and TRIM activity can alter unallocated space over time even without host writes

SSD controllers autonomously erase and relocate pages during idle garbage collection, silently changing exactly the unallocated regions forensics cares about. / SSD कंट्रोलर निष्क्रिय अवस्था में पेज मिटाता और स्थानांतरित करता है, जिससे unallocated क्षेत्र चुपचाप बदल जाते हैं। Option (a) is the trap — powered-off data retention is measured in months to years, not hours.

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