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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is an update anomaly?
💡 Hint: Think about why redundancy can be problematic.
Question 2
Easy
What is redundancy in database terms?
💡 Hint: Consider how data should be organized.
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 leads to an update anomaly?
- Data normalization
- Redundant data
- Atomic data
💡 Hint: Consider how the data is stored!
Question 2
True or False: Normalization can completely eliminate all data errors.
- True
- False
💡 Hint: Think about other factors that could lead to errors.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Consider a school database where teachers are listed along with their subjects. If a teacher changes subjects but it's recorded in multiple places, discuss how you would ensure all records are updated efficiently without causing inconsistencies.
💡 Hint: Think about how relationships between entities can simplify data management.
Question 2
Imagine a scenario where a university's course catalog and instructor information are combined. If an instructor changes their title or department, illustrate the potential issues if a structured normalization approach isn't applied.
💡 Hint: Reflect on the consequences that redundancy could create in a real-world application.
Challenge and get performance evaluation