Which statement is/are correct?
| A. | The Hierarchical Database Model (HDBM) is applicable when the data in an organisation can be put down in the hierarchical or in terms of the levels, one after another |
| B. | The data model is shown by an arrangement of the blocks |
| C. | The Network Database Model (NDBM) deals with the set and the records |
| D. | All of the above |
Answer : D Explanation : |
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Option: A Explanation : Explanation will come here. Explanation will come here. Explanation will come here. Explanation will come here. Explanation will come here. |
