Practice Processing During DMA Transfer - 29.3.2 | 29. Overview of DMA and Interrupt Driven I/O | Computer Organisation and Architecture - Vol 3
K12 Students

Academics

AI-Powered learning for Grades 8–12, aligned with major Indian and international curricula.

Professionals

Professional Courses

Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.

Games

Interactive Games

Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.

Typing
Memory
Math
English Adventures
Knowledge

29.3.2 - Processing During DMA Transfer

Enroll to start learning

You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.

Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

Define DMA.

💡 Hint: Think about how devices transfer data without needing the CPU.

Question 2

Easy

What happens in burst transfer mode?

💡 Hint: Consider how that impacts CPU waiting time.

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 is one of the primary benefits of using DMA over traditional interrupt-driven methods?

  • A: More frequent context switches
  • B: No CPU intervention during transfers
  • C: Slower transfer times

💡 Hint: Think about whether the CPU needs to manage tasks during the data transfers.

Question 2

True or False: In DMA cycle stealing mode, the CPU can work during data transfers.

  • True
  • False

💡 Hint: Consider the operating model of both DMA modes.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

You need to transfer a 10 MB file using DMA configured with a 32-bit data bus. If the bus can handle 256 KB per burst transfer, calculate how many total transfers are necessary and how long the CPU might get interrupted.

💡 Hint: Break down the total size into manageable blocks based on the bus capabilities.

Question 2

Consider a scenario in which the DMA controller must interface with both high-speed and low-speed devices. How technology might ensure optimal transfer efficiency? Discuss solution approach.

💡 Hint: Think about how the controller can manage demands from both types of devices to boost efficiency.

Challenge and get performance evaluation