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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is a multivalued dependency?
💡 Hint: Think about how one fact can lead to many others.
Question 2
Easy
Why do we want to convert a relation to 4NF?
💡 Hint: Consider the implications of having the same data repeated.
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 must be true for a relation to be in Fourth Normal Form?
- It must be redundant
- It must be in BCNF and have no non-trivial MVDs
- It must have at least one MVD
💡 Hint: Recall the definitions and conditions of 4NF.
Question 2
True or False: A table can be in BCNF but still not in 4NF.
- True
- False
💡 Hint: Consider the meaning of each normal form.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Consider a university database where students take multiple courses, each with instructors. Identify and explain any multivalued dependencies present, and describe how you would convert this into 4NF.
💡 Hint: Look for relationships between data points and how they can be separated.
Question 2
A company database tracks employee records, which include multiple projects and various skills. Analyze potential MVDs present and suggest a format to achieve 4NF.
💡 Hint: Focus on separating distinct attributes that might independently determine values.
Challenge and get performance evaluation