The oldest DB model is _______________
A. Network
B. Physical
C. Hierarchical
D. Relational
Answer:A
The oldest DB model is _______________
A. Network B. Physical C. Hierarchical D. Relational
Explanation: Network model has data stored in a hierarchical network flow. In a relational DBMS, the data is stored in the form of tables. Hierarchy is obtained by Parent-Child Relationship