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Crucial Exams

CompTIA Data+ DA0-002 (V2) Practice Question

A data analyst is reviewing the following API response:

{
  "orderId": "A1009",
  "customer": {
    "id": "C328",
    "name": "Tricia"
  },
  "items": [
    { "sku": "P101", "qty": 3 },
    { "sku": "P305", "qty": 1 }
  ]
}

Which statement accurately describes the nested JSON structures present in this payload?

  • Both "customer" and "items" are nested structures-the former is a nested object and the latter is an array of objects.

  • Arrays like "items" cannot be nested in valid JSON and should be converted to comma-separated strings instead.

  • "items" is nested but "customer" is not, since objects without square brackets remain flat.

  • The JSON is flat because every attribute appears only once at the top level.

CompTIA Data+ DA0-002 (V2)
Data Concepts and Environments
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