Practice Java Memory Model And Thread Safety (20) - Java Memory Model and Thread Safety

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9 questions

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

Question 1.
What does the Java Memory Model (JMM) describe?
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Think about the interaction of multiple threads.
Question 2.
Define what volatile means in Java.
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Consider shared variables and their visibility.
3Question 3.
What is the purpose of the Java Memory Model?
- To define thread interactions with memory
- To manage network connections
- To optimize app performance
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Consider why memory access is important in concurrency.
4Question 4.
True or False: The volatile keyword ensures changes are visible to all threads.
- True
- False
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What does volatile guarantee regarding variable visibility?
Question 5.
Implement a simple Java program that demonstrates a race condition with a shared counter.
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Consider how two threads might update the same value.
Question 6.
Describe a scenario where improper use of synchronization can create a deadlock situation in Java.
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Think about circular wait conditions between threads.

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