Which term refers to databases that are not solely based on the relational model?

Which term refers to databases that are not solely based on the relational model?

• A. Big Data
• B. Data Steward
• C. Master Data Management
• D. NOSQL

Answer: (D)

Databases not solely based on the relational model are NoSQL systems. They cover non-relational approaches such as key-value stores, document databases, column-family stores, and graph databases. NoSQL emphasizes flexible schemas, horizontal scalability, and efficient handling of large, diverse, or rapidly changing data, which lighter, fixed-schema relational databases can struggle with at scale. The other terms describe concepts or roles (Big Data), or governance/process frameworks (Data Steward, Master Data Management), rather than a type of database model. So the best fit for databases that aren’t purely relational is NoSQL.

Databases not solely based on the relational model are NoSQL systems. They cover non-relational approaches such as key-value stores, document databases, column-family stores, and graph databases. NoSQL emphasizes flexible schemas, horizontal scalability, and efficient handling of large, diverse, or rapidly changing data, which lighter, fixed-schema relational databases can struggle with at scale. The other terms describe concepts or roles (Big Data), or governance/process frameworks (Data Steward, Master Data Management), rather than a type of database model. So the best fit for databases that aren’t purely relational is NoSQL.