With respect to the variety inherent in Big Data, structured data (the 20% of the data that is contained in relational databases) is to unstructured data (all the rest of the data) as
Question options:
1. Roads and signposts are to wilderness.
2. Faucets are to fire hoses.
3. Relational databases are to spreadsheets.
4. Natural language is to programming code.
5. Data is to metadata
