Practice Overview Of Dma And Interrupt Driven I/o (29.1) - Overview of DMA and Interrupt Driven I/O

Practice: Overview of DMA and Interrupt Driven I/O

Lesson 29.1Overview of DMA and Interrupt Driven I/O

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8 questions

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6 sample questions

Question 1.
What does DMA stand for?
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Think about how it accesses memory.
Question 2.
Which mode allows for the entire block of data to be transferred at once?
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It’s like doing everything in one shot.
3Question 3.
What does DMA allow the CPU to do during data transfer?
- Stop all processes
- Continue executing instructions
- Immediately process all interrupts
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Reflect on how DMA interacts with the CPU.
4Question 4.
In which transfer mode does the CPU get interrupted more frequently?
- True
- False
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Think of how often interrupts occur.
Question 5.
Scenario: A DMA controller is set to transfer 100 MB of data with a maximum transfer unit of 64 KB. How many times will the CPU need to respond to DMA requests during this process?
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Calculate how many blocks of 64 KB fit into 100 MB.
Question 6.
Evaluate how switching from interrupt-driven I/O to DMA can affect system responsiveness in a high-load scenario.
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Consider the implications of reduced CPU suspension.

4 more questions in this section. Enroll free to practise them all.