Practice Channels (21.2.3) - Java I/O and NIO

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9 questions

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6 sample questions

Question 1.
What is a channel in Java NIO?
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Think about how data flows between devices.
Question 2.
How do you create a FileChannel?
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What class do we use for file access?
3Question 3.
What does a Channel in Java NIO represent?
- A method for data processing
- An open connection to an I/O entity
- A class for reading data
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Focus on what a channel connects in I/O.
4Question 4.
Which channel would you use for UDP communication?
- FileChannel
- SocketChannel
- DatagramChannel
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Think about the type of protocol used.
Question 5.
Design a system where a SocketChannel needs to handle multiple client connections efficiently. Outline your design and explain how you would implement selectors to manage these connections.
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Think about how the Selector can help manage multiple connections.
Question 6.
Given a large file, devise a method using FileChannel to process only specific chunks of the file at a time. Explain your reasoning.
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Consider the benefits of reading chunks instead of the whole file.

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