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Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
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Knowledge
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is a one-to-many relationship?
💡 Hint: Think of the employment example.
Question 2
Easy
Give an example of a many-to-many relationship.
💡 Hint: Consider how students choose classes.
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 a cardinality ratio indicate?
- The data type of an entity
- The storage requirement
- The number of entity instances that can be associated
💡 Hint: Think about how entities interact.
Question 2
True or False: A one-to-many relationship can involve an employee who works for multiple departments.
- True
- False
💡 Hint: Focus on understanding the definitions.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Design an ER model that includes a library system with books, authors, and publishers while showcasing one-to-many and many-to-many relationships.
💡 Hint: Think about how books are created and the roles involved.
Question 2
Discuss how improper cardinality can lead to data anomalies. Give an example from real-life scenarios.
💡 Hint: Consider the importance of valid relationships.
Challenge and get performance evaluation