Practice Principles of I/O Software - 9.2 | Module 9: I/O Systems | Operating Systems
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What does PIO stand for?

πŸ’‘ Hint: Think about how the CPU interacts with I/O devices.

Question 2

Easy

Name one benefit of Interrupt-Driven I/O.

πŸ’‘ Hint: Consider what the CPU does while waiting for I/O completion.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What does Programmed I/O involve?

  • a) CPU offloads I/O
  • b) CPU directly manages I/O
  • c) DMA transfers data

πŸ’‘ Hint: Consider who is doing all the work.

Question 2

True or False: Direct Memory Access (DMA) requires constant CPU supervision during data transfer.

  • True
  • False

πŸ’‘ Hint: Think about the role of the CPU during DMA operations.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Design a scenario for a complex I/O operation that would benefit from DMA rather than Programmed I/O. Explain your reasoning.

πŸ’‘ Hint: Consider what I/O speeds and CPU time imply for performance.

Question 2

Analyze how implementing Interrupt-driven I/O can improve user experience in an operating system's text document editor.

πŸ’‘ Hint: Think about multitasking and responsiveness.

Challenge and get performance evaluation