DBMS · Question 17 · Easy
Which ACID property guarantees that once a transaction has committed, its changes survive a later system crash or power failure?
- Atomicity
- Consistency
- Isolation
- Durability
Answer and explanation
Answer: D. Durability
Explanation: Durability means committed changes are permanent; the DBMS uses logs on stable storage to redo them after a crash. Atomicity is about all-or-nothing execution.
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