Practice Polling Model (17.4.1) - Event-Driven Programming

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6 sample questions

Question 1.
What is the Polling Model?
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Think about how often the program looks for changes.
Question 2.
What is a key disadvantage of the Polling Model?
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Consider what might happen if the program is always busy checking.
3Question 3.
What is a Polling Model?
- A method of asynchronous event handling
- A technique for continuously checking for events
- An obsolete programming model
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It relates to how programs check for occurrences.
4Question 4.
True or False: The Polling Model is efficient for modern applications.
- True
- False
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Think about how often polling checks for events.
Question 5.
Given a scenario where user interaction is minimal, suggest whether to use polling or a callback system. Justify your answer.
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Consider how often events really occur.
Question 6.
Analyze how switching from a polling system to an event-driven callback system would impact overall application performance. What metrics would you look at?
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Think about the user experience in general.

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