Practice Server-based Approaches (7.6.2) - Real-Time Scheduling Algorithms
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Server-Based Approaches

Practice - Server-Based Approaches

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is the primary function of a polling server?

💡 Hint: Think about how it utilizes its polling cycles.

Question 2 Easy

How does a deferrable server improve upon a polling server?

💡 Hint: Consider what happens during idle periods.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does a polling server do during its period?

Checks for tasks
Performs calculations
Restores budget

💡 Hint: Think about its duty during polling cycles.

Question 2

True or False: Deferrable servers consume their entire budget immediately upon period start.

True
False

💡 Hint: Reflect on how they manage idle periods!

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Consider a system with a buoyant aperiodic task arrival rate. How might a polling server struggle to maintain task responsiveness under such conditions? Discuss in terms of wasted budgets.

💡 Hint: Think about the timing of task arrivals relative to the polling schedule.

Challenge 2 Hard

Analyze a real-time system using a deferrable server where many aperiodic tasks arrive sporadically and unpredictably within a fixed budget. What would happen to the overall system performance and why?

💡 Hint: Consider the relationship of aperiodic task arrivals and budget usage.

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Reference links

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