Practice Direct Memory Access (dma) (7.4) - Input/Output (I/O) Organization
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Direct Memory Access (DMA)

Practice - Direct Memory Access (DMA)

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is Direct Memory Access (DMA)?

💡 Hint: Think about how DMA changes the role of the CPU in data transfers.

Question 2 Easy

Name one benefit of using DMA.

💡 Hint: Consider how it affects CPU workload.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the primary function of DMA?

To decrease data transfer speed
To facilitate data transfer without CPU intervention
To require constant CPU control

💡 Hint: Consider how DMA changes the role of the CPU.

Question 2

True or False: DMA can operate in burst mode.

True
False

💡 Hint: Recall the various modes DMA can utilize.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Given a scenario where a DMA controller must transfer 2MB of video data to memory, outline the setup needed including destination address, source address, and transfer count. Discuss how you would choose the DMA mode.

💡 Hint: Think about the implications of choosing each DMA mode for performance.

Challenge 2 Hard

Discuss how DMA influences the performance of tasks that involve both high-speed data access and computational loads simultaneously.

💡 Hint: Consider scenarios like video editing or gaming to illustrate the necessity of efficient data transfers.

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Reference links

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