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Question

1.
2.
3.
4.
Answer (Detailed Solution Below)

Option 3 : The full backup plus only Thursday's differential

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Detailed Solution

सही उत्तर The full backup plus only Thursday's differential है।

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PrepSnapprepsnap.in • Part -A

Question:

With a weekly full backup plus daily DIFFERENTIAL backups, how many backup sets are needed to restore to Thursday's state? / साप्ताहिक पूर्ण बैकअप और दैनिक DIFFERENTIAL बैकअप के साथ गुरुवार की स्थिति बहाल करने के लिए कितने बैकअप सेट चाहिए?

1.
The full backup plus every differential from Monday through Thursday
2.
All seven daily backups of the week
3.
The full backup plus only Thursday's differential
4.
Thursday's differential alone, because differentials are cumulative full copies

Correct Answer: The full backup plus only Thursday's differential

A differential always holds all changes since the last full backup, so the full plus the latest differential is sufficient — unlike incrementals, no chain is needed. / Differential हमेशा अंतिम पूर्ण बैकअप के बाद के सभी बदलाव रखता है, इसलिए पूर्ण + नवीनतम differential ही पर्याप्त है। Option (a) is the trap — it applies incremental-restore logic to differentials.

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