Practice Types Of Class Loaders (28.2.1) - JVM Internals and Performance Tuning

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9 questions

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

Question 1.
What does the Bootstrap ClassLoader load?
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Think about foundational classes needed for Java to run.
Question 2.
Where does the Extension ClassLoader load classes from?
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Consider where shared libraries are kept for Java applications.
3Question 3.
Which class loader loads core Java classes?
- Application ClassLoader
- Extension ClassLoader
- Bootstrap ClassLoader
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Remember which loader is the most essential for starting up JVM.
4Question 4.
The Extension ClassLoader is responsible for:
- True: Loading classes from the lib/ext directory
- False: Loading user application classes
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Think of a directory for additional libraries.
Question 5.
Describe a scenario where class loader conflict might occur and how it affects JVM performance.
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Think about versioning in libraries.
Question 6.
How would you go about troubleshooting a memory leak caused by a class loader leak?
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Look into tools that can show memory usage and class loader references.

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