Which method for organizing information relies on an identifier linked to a stored piece of data for flexible lookups in many repositories?
Key-value pairs
Hierarchical segments
Star schema
JSON arrays
A label matched with a data element is a defining feature of key-value pairs. This structure stores each data point under a unique identifier, making retrieval simpler and more flexible. JSON arrays arrange values by index, hierarchical segments define relationships among nested nodes, and a star schema organizes data for queries around a central fact table, so they rely on different foundational concepts than pairs of labels and data.
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