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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does Write-Ahead Logging (WAL) ensure?
💡 Hint: Consider why logging is important during crashes.
Question 2
Easy
What is the purpose of the No-Force policy?
💡 Hint: Think about how immediate writes could affect performance.
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 principle in ARIES ensures that no changes are lost during a crash?
- No-Force Policy
- Write-Ahead Logging
- Steal Policy
💡 Hint: Focus on the importance of logging in recovery.
Question 2
True or False: The No-Force policy immediately writes all updated pages to disk upon a transaction commit.
- True
- False
💡 Hint: Think about how performance can affect disk I/O.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Discuss how the lack of Write-Ahead Logging would affect database recovery and provide examples of potential data loss scenarios.
💡 Hint: Consider what happens if updates are made but not preserved in logs.
Question 2
Evaluate how the Steal policy might influence the recovery process in a high-transaction environment versus a low-transaction one.
💡 Hint: Think about how frequent transactions could lead to many dirty pages being written.
Challenge and get performance evaluation