Practice Common Jvm Pitfalls (28.9) - JVM Internals and Performance Tuning

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10 questions

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4 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
4 questions · about 3 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is a memory leak?
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Think about garbage collection.
Question 2.
What does OutOfMemoryError indicate?
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Consider what happens when all heap space is used.
3Question 3.
What causes a memory leak in JVM?
- Retaining object references
- Using too many threads
- Overloading methods
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Think about what prevents cleanup.
4Question 4.
OutOfMemoryError can occur when which of the following is true?
- True
- False
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Consider memory limitations.
Question 5.
Identify and discuss a real-world scenario where a memory leak could severely affect an application’s performance.
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Think about user session management.
Question 6.
How might you design a recursive function to prevent StackOverflowError while still achieving the desired outcome?
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Consider the base cases.

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