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Which storage redundancy approach replicates data across multiple physically separate datacenters within one region?
AGeo-redundant storage that replicates only to another planet
BLocally redundant storage that lives entirely in one rack
CZone redundant storage (e.g. ZRS in Azure)
DSingle-instance non-replicated storage with one copy
Answer & Solution
Correct answer: C. Zone redundant storage (e.g. ZRS in Azure)
Zone-redundant storage spans availability zones inside one region — surviving zone failure. Locally redundant copies stay in one DC (no zone protection). Cross-region is the next tier up (e.g. GRS). Single-instance has no replication.
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