Practice Thread-safe Collections And Concurrent Utilities (14.10) - Multithreading and Concurrency

Practice: Thread-safe Collections and Concurrent Utilities

Lesson 14.10Multithreading and Concurrency

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8 questions

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2 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
2 questions · about 1 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is a thread-safe collection?
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Think about issues that arise with multiple thread access.
Question 2.
Name a thread-safe utility in Java.
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Consider the utilities in the java.util.concurrent package.
3Question 3.
What is the primary purpose of ConcurrentHashMap?
- To store data sequentially
- To allow concurrent access
- To sort data
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Think about why we need data structures in multi-threading.
4Question 4.
True or False: BlockingQueue can block a thread until an element becomes available.
- True
- False
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Consider how queues behave when they are empty.
Question 5.
Implement a simple Java application that uses BlockingQueue to simulate a producer-consumer scenario. Explain how it handles thread safety.
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Focus on how the queue manages empty and full conditions.
Question 6.
Create a performance comparison between ConcurrentHashMap and a synchronized HashMap. Discuss scenarios where one may be preferred over the other.
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Consider the frequency of read vs write operations.

4 more questions in this section. Enroll free to practise them all.