Device Development Engineer Interview Questions

782 device development engineer interview questions shared by candidates

Since the position is on linux device driver most of the question were from kernel and driver. Questions: - PCI device driver - How a driver is selected to drive a device. - How probing happens for any new device. - Memory cache - DMA Memory(Coherent and Stream) - Interrupt(softirq, tasklet and workque) - Synchronization Primitives(spinlock, mutex) - Producer and Consumer problem - Asked to synchronize a circular buffer. - MMU and IOMMU, etc. - Few questions on single linked list.
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Linux Device Driver

Interviewed at Marvell Technology

4.3
Feb 17, 2021

Since the position is on linux device driver most of the question were from kernel and driver. Questions: - PCI device driver - How a driver is selected to drive a device. - How probing happens for any new device. - Memory cache - DMA Memory(Coherent and Stream) - Interrupt(softirq, tasklet and workque) - Synchronization Primitives(spinlock, mutex) - Producer and Consumer problem - Asked to synchronize a circular buffer. - MMU and IOMMU, etc. - Few questions on single linked list.

1. Introduce about yourself 2. What do you know about testing? 3. Why do we test? 4. What are the types of tests you know? 5. Do you know about agile? 6. Explain regression testing 7. Give 10 test cases for whatsapp with different types of testing. 8. 1 logical question
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Device Associate

Interviewed at Amazon

3.5
Apr 22, 2022

1. Introduce about yourself 2. What do you know about testing? 3. Why do we test? 4. What are the types of tests you know? 5. Do you know about agile? 6. Explain regression testing 7. Give 10 test cases for whatsapp with different types of testing. 8. 1 logical question

Round 1. There was totally 2 papers 1st consist Aptitude questions and on 2nd English was there. Both were easy only. Round 2. You need to take any topic and need to talk on that. Round 3. They have asked me lot of questions on testing. like SDLC,STLC, types of testing, types of models, elaborate each and every model and so many. Totally that round consist 30-45 min and she asked each and every thing to me on testing. Round 4: Same type of questions asked as round three but in this round i have written test scenarios for the given topics then he asked me so many reasoning questions after that he has given 4 puzzles and i have to solve each and every one.
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Device Associate (Test Engineer)

Interviewed at Amazon

3.5
Jun 15, 2015

Round 1. There was totally 2 papers 1st consist Aptitude questions and on 2nd English was there. Both were easy only. Round 2. You need to take any topic and need to talk on that. Round 3. They have asked me lot of questions on testing. like SDLC,STLC, types of testing, types of models, elaborate each and every model and so many. Totally that round consist 30-45 min and she asked each and every thing to me on testing. Round 4: Same type of questions asked as round three but in this round i have written test scenarios for the given topics then he asked me so many reasoning questions after that he has given 4 puzzles and i have to solve each and every one.

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