Multiple choice general knowledge science & technology

The four basic kinds of database structures are

  1. Flat file, network, relational, and objected oriented

  2. Hierarchical, indexed, network, and relational

  3. Hierarchical, flat file, network, and objected oriented

  4. Hierarchical, network, relational, and objected oriented
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The four fundamental database models are hierarchical (tree structure), network (graph structure allowing many-to-many relationships), relational (table-based with SQL), and object-oriented (stores objects directly). Option D correctly lists these four types, though 'objected oriented' contains a typo.

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