Practice Interrupt/callback Model (17.4.2) - Event-Driven Programming - Advanced Programming

Practice: Interrupt/Callback Model

Lesson 17.4.2Event-Driven Programming

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10 questions

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6 sample questions

Question 1.
What is a callback function?
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Think about functions that are used after other functions.
Question 2.
What does asynchronous mean in programming?
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Consider tasks that don't wait for others to complete.
3Question 3.
What is the main purpose of a callback function?
- To execute another function
- To handle an event
- To return a value
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Think about the role of a function after an event occurs.
4Question 4.
True or False: Asynchronous execution blocks the main thread until completion.
- True
- False
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Consider how tasks are handled in an event-driven environment.
Question 5.
Design a simple webpage that implements a button triggering a callback function. Explain the expected behavior when the button is clicked—including the asynchronous nature of the callback.
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Consider how the webpage continues to be interactive.
Question 6.
Analyze a piece of code where callbacks are nested multiple times. Identify the issues that may arise and propose a refactor to reduce complexity.
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Think about different ways to handle asynchronous operations in a cleaner way.

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