Computer Science > EXAM REVIEW > PRE-ASSESSMENT: DATA MANAGEMENT - FOUNDATIONS PFKO (All)
PRE-ASSESSMENT: DATA MANAGEMENT - FOUNDATIONS PFKO
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PRE-ASSESSMENT: DATA MANAGEMENT - FOUNDATIONS PFKO Attempt #1 Status: Passed 1. What is a broad definition of data? YOUR ANSWER CORRECT ANSWER 2. What are data? ... YOUR ANSWER CORRECT ANSWER 3. What is a determining characteristic of unstructured data? YOUR ANSWER CORRECT ANSWER 4. Refer to this diagram. Which item represents unstructured data? YOUR ANSWER CORRECT ANSWER 5. Which is true about flat files? YOUR ANSWER CORRECT ANSWER 6. Which technology has no internal hierarchy? YOUR ANSWER CORRECT ANSWER 7. How were data retrieved before database management systems? YOUR ANSWER CORRECT ANSWER YOUR ANSWER 8. What is the uniquely identifiable element about which data can be categorized in an entity-relationship diagram? YOUR ANSWER CORRECT ANSWER 9. Refer to this diagram. Which classification is correct for the box marked “Quantity” in the given entity- relationship diagram? YOUR ANSWER CORRECT ANSWER 10. Which data classification is an entity? YOUR ANSWER CORRECT ANSWER YOUR ANSWER CORRECT ANSWER 11. Refer to this diagram. What is the entity-relationship diagram about a car rental agency showing? YOUR ANSWER CORRECT ANSWER 12. A salesperson is authorized to sell 12 products; a product can be sold by 10 salespersons. Which kind of binary relationship is described in this example? YOUR ANSWER CORRECT ANSWER 13. Refer to this diagram. Which relationship does the cardinality in the diagram represent? YOUR ANSWER CORRECT ANSWER 14. Refer to this entity-relationship diagram. How is the cardinality of the customers misrepresented? YOUR ANSWER CORRECT ANSWER 15. Refer to this diagram. Image What is the correct way to read the modality on the right side of the association? YOUR ANSWER CORRECT ANSWER 16. Refer to this entity-relationship diagram. What is the modality of the product? ..................................................................CONTINUED............................................................................... [Show More]
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