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Knowledge
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does the -Xms flag do?
💡 Hint: Think about what happens at the start of the application.
Question 2
Easy
What is the purpose of the -Xmx flag?
💡 Hint: Consider how much memory an application can use.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What does the -Xms flag control?
- Initial heap size
- Maximum heap size
- Stack size
💡 Hint: Focus on what happens at application startup.
Question 2
True or False: The -XX:+HeapDumpOnOutOfMemoryError flag will create a heap dump when the JVM is running normally.
- True
- False
💡 Hint: Consider when heap dumps are valuable.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
You are experiencing performance issues in a Java web application that serves a large number of requests. Propose a set of JVM tuning flags that could help alleviate the stress on memory.
💡 Hint: Think about a balance of starting memory and maximum memory, and the collector that fits your needs.
Question 2
Your application faces high pause-times due to garbage collection. Analyze which flags could be adjusted or introduced to mitigate this issue.
💡 Hint: Focus on reducing the impact of garbage collection on performance.
Challenge and get performance evaluation