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Which Cloud Storage feature should a Data Engineer use to automatically move blobs older than 30 days to cheaper Nearline / Coldline / Archive tiers — for cost optimisation per PDE §3.1?
AManual quarterly bucket cleanups by a developer
BCloud Memorystore
CCloud Storage Object Lifecycle Management rules
DCloud DNS
Answer & Solution
Correct answer: C. Cloud Storage Object Lifecycle Management rules
Lifecycle rules automate tier transitions (per PDE §3.1). The other options don't automate transitions.
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