A software developer asks your advice about storing data. The developer has hundreds of thousands of 1 KB JSON objects that need to be accessed in sub-millisecond times if possible. All objects are referenced by a key. There is no need to look up values by the contents of the JSON structure. What kind of NoSQL database would you recommend?

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A software developer asks your advice about storing data. The developer has hundreds of thousands of 1 KB JSON objects that need to be accessed in sub-millisecond times if possible. All objects are referenced by a key. There is no need to look up values by the contents of the JSON structure. What kind of NoSQL database would you recommend?