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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define specialization in the context of the ER model.
💡 Hint: Think about how roles within a job can specify specific responsibilities.
Question 2
Easy
What is a superclass?
💡 Hint: What do you call a broader category that includes more specific roles?
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is specialization in the context of the ER Model?
- Combining lower-level entities
- Breaking down a higher-level entity set
- Defining relationships
💡 Hint: Think of how job roles are differentiated.
Question 2
True or False: In a generalization, all entities must belong to at least one subclass.
- True
- False
💡 Hint: Remember the flexibility of generalization.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Design an ER model for a university database incorporating specialization and generalization. Identify superclasses and subclasses.
💡 Hint: Consider what common characteristics can be combined for effective modeling.
Question 2
Discuss the trade-offs of implementing disjoint versus overlapping constraints in a hierarchical database structure.
💡 Hint: Think about examples in a workplace or school where roles overlap.
Challenge and get performance evaluation