Practice Selectors (21.2.4) - Java I/O and NIO

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8 questions

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6 sample questions

Question 1.
What is a selector in Java NIO?
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Think about how it improves resource usage.
Question 2.
Name one reason why non-blocking I/O is beneficial.
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Consider how this affects application performance.
3Question 3.
What do selectors allow in Java NIO?
- Handling only one channel at a time
- Monitoring multiple channels with a single thread
- Blocking I/O operations
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Consider how this impacts server performance.
4Question 4.
True or False: Selectors block the application from executing while waiting for I/O.
- True
- False
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Focus on the purpose of non-blocking I/O.
Question 5.
Design a chat server using Java NIO selectors to handle multiple clients. Explain how you would manage incoming messages and connections.
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Consider how you would establish communication between various clients efficiently.
Question 6.
Describe the performance implications of using selectors over traditional blocking I/O techniques in a server application.
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Think about how a fewer number of threads influence server load and responsiveness.

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