Who is the database administrator? List THREE managerial and technical skills required for a DBA. (5 marks)
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Give TWO (2) advantages of data modeling. (4 marks)
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Explain strong entity and weak entity in Entity Relationship Diagram(ERD). (4 marks)
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Explain the disjointness and completeness constraints for generalization hierarchy.
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Differentiate between the following pairs of terms: One-Sided Outer Join versus Full Outer Join. Intersection Operators versus Difference Operators. (1 mark each, total = 4 marks)
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What are DBMS languages? Explain and give example in your answers. (4 marks)
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Outline the importance of the data model to the database designer. (2 marks)
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Explain the difference between structured data and unstructured data. (4 marks)
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Give ONE (1) effect of a poor database design. (2 marks)
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