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Knowledge
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is an entity?
💡 Hint: Think of examples like a student or a car.
Question 2
Easy
Define what an attribute is.
💡 Hint: Consider what data you would store about a student.
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 an entity in the ER Model?
💡 Hint: Consider an example of a person or thing.
Question 2
Is a weak entity capable of existing independently?
- True
- False
💡 Hint: Think of a dependent of an employee.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Create an ER diagram for a library system including authors, books, and members. Ensure to include relationships and cardinalities.
💡 Hint: Think about how members check out books and how authors write them.
Question 2
How would you convert a weak entity set for dependents into a relational schema? Explain the attributes involved.
💡 Hint: A dependent could be identified uniquely with the employee ID plus their name.
Challenge and get performance evaluation