Practice Concurrency Control Techniques (9.5) - Transaction Management
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Concurrency Control Techniques

Practice - Concurrency Control Techniques

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Practice Questions

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Question 1 Easy

What is the primary purpose of concurrency control in databases?

💡 Hint: Think about how multiple actions on the same data can cause issues.

Question 2 Easy

In lock-based protocols, what is a shared lock used for?

💡 Hint: Consider whether the data is being modified or just accessed.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does a lock do in a database?

Allows many transactions to modify data simultaneously
Prevents other transactions from accessing data
Guarantees that data is saved correctly

💡 Hint: Consider the purpose of locking in regard to data safety.

Question 2

True or False: Timestamp-based protocols can experience deadlocks.

True
False

💡 Hint: Think about how transactions interact without locks.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

You are designing a system using validation-based protocols. What strategies can you implement to minimize the drawback of frequent transaction aborts?

💡 Hint: Consider how managing transaction priorities might ease the process.

Challenge 2 Hard

Create a diagram illustrating a deadlock scenario using Two-Phase Locking and explain the situation caused.

💡 Hint: Think about how changing the order of lock requests can help avoid deadlocks.

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Reference links

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