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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is recoverability?
💡 Hint: Think about how failures affect data consistency.
Question 2
Easy
Define Cascading Rollback.
💡 Hint: Consider how reading uncommitted data causes issues.
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 the primary aim of recoverability?
- To ensure all data is written immediately
- To maintain the database's consistency after failures
- To eliminate the need for backups
💡 Hint: Consider the implications of a failed transaction on data.
Question 2
True or False: A cascadeless schedule allows transactions to read data written by another transaction prior to its commit.
- True
- False
💡 Hint: Remember the definition and rules of a cascadeless schedule.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
An online shopping site uses transactions for user orders. Describe a possible sequence of transactions leading to cascading rollbacks if not managed under a recoverable schedule.
💡 Hint: Relate to the interdependency of related transactions.
Question 2
You are tasked to improve the recoverability of a banking system database. What techniques would you implement to ensure maximum efficiency alongside data integrity?
💡 Hint: Consider protocols that increase transaction assurance while maintaining throughput.
Challenge and get performance evaluation