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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define what an entity is in an ER Model.
💡 Hint: Think of examples like a student or a course.
Question 2
Easy
What is a relationship in an ER Model?
💡 Hint: Recall how entities interact with each other.
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 does an Entity-Relationship Model primarily represent?
- Physical structure of a database
- Conceptual data structures
- Programming code
💡 Hint: It deals with representation, not actual implementation.
Question 2
True or False: A weak entity set can exist independently of its identifying entity.
- True
- False
💡 Hint: Consider the definition of a weak entity.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Design an ER diagram for a library system, considering entities like Book, Member, and Loan. Include relationships and cardinalities.
💡 Hint: Think about how one Member can have multiple Loans.
Question 2
Discuss the trade-offs between using derived attributes and storing actual data in a database.
💡 Hint: Consider cases when data must be frequently accessed.
Challenge and get performance evaluation