How many copies of data does an Azure Storage account using locally-redundant storage (LRS) maintain?
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Correct answer: 3.
Why this is the answer
An Azure Storage account using Locally-Redundant Storage (LRS) maintains three copies of data. These three copies are stored within a single data center in the primary region. This redundancy protects data from common hardware failures. While LRS offers the lowest cost, it does not protect against a data center-wide outage. Options 4, 6, and 9 are incorrect because they do not reflect the specific number of data copies provided by Azure's LRS redundancy option. Other redundancy options like Zone-Redundant Storage (ZRS), Geo-Redundant Storage (GRS), and Geo-Zone-Redundant Storage (GZRS) maintain more copies across different availability zones or regions for higher durability.
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