A city housing portal must keep Blob copies resilient across availability zones inside one Azure region. Which redundancy option describes that protection?
Select an answer to reveal the explanation.
Short Explanation
Availability zones are separate buildings with their own power—ZRS sprinkles copies across them in the same region. That is how the housing portal survives a single-zone hiccup without jumping to another region. Access tiers are about cost and access frequency, not zone redundancy.
Full Explanation
Zone-redundant storage (ZRS) synchronously replicates data across three Azure availability zones in the primary region, protecting against a zone-level failure. LRS keeps copies within one location and does not provide that zone spread. Blob access tiers (Hot, Cool, Archive) address access patterns and cost, not multi-zone replication. Fundamentals items ask candidates to identify ZRS when the requirement is protection across zones in a region.