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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is indexing in a database context?
💡 Hint: Think about how a book's index helps you find specific topics quickly.
Question 2
Easy
Why should you avoid SELECT * in queries?
💡 Hint: What happens when you request data that isn't necessary?
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 indexing do in a database?
- Slows down retrieval
- Speeds up data search
- Increases table size
💡 Hint: Remember how a book index works.
Question 2
True or False: Caching can lead to outdated information being displayed.
- True
- False
💡 Hint: What happens if the original data gets updated?
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
You have a large e-commerce database with millions of users and orders. Design a query optimization strategy to improve performance during the holiday season when traffic spikes.
💡 Hint: Consider both preemptive measures and real-time adjustments.
Question 2
A client complains of slow application load times. Your investigation shows frustrating delays when fetching user profile data. How would you address the situation?
💡 Hint: What improvements could you recommend for both speed and accuracy?
Challenge and get performance evaluation