Firmware Engineer Mock Interview

Practice 30 Firmware Engineer interview questions covering embedded systems, hardware integration, and real-time debugging.

Question 29 of 30

Do you have experience working on computer kernels?

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William Swansen

William Swansen has worked in the employment assistance realm since 2007. He is an author, job search strategist, and career advisor who helps individuals worldwide and in various professions to find their ideal careers.

This question is specific to firmware engineers who work on computers rather than dedicated devices or appliances. This is because the kernel is a central processing unit or CPU component that interacts with the firmware when the device is powered on. It loads the code needed for the computer to complete the start-up and then function. If you work with computers and design firmware for them, then you have experience with kernels. Even if you haven't, you probably learned about them during your education and training. As with any question asking about a piece of technology, keep your answer brief and to the point and expect a follow-up question from the interviewer.

William Swansen

"Since I have worked for several computer manufacturers, I have a great deal of experience working with kernels. The firmware I create loads the kernel as one of the first steps in the start-up process for the computer. Once this is complete, the kernel manages the balance of the start-up process including memory, peripherals, and any I/O request from the operating system."

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30Firmware Engineer Interview Questions & Answers

General

1.How would you explain firmware to someone in our organization who doesnâ€™t have a technical background?

Technical

2.Can you describe the difference between a driver and a piece of firmware?

Technical

3.How would you define embedded software design?

Technical

4.What is the programming language commonly used to write code for microcontrollers?

Technical

5.Does a computer operating system require firmware?

Technical

6.What are some of the differences between a microprocessor and a microcontroller?

Technical

7.Can you define DMA, and discuss how it interfaces with devices containing firmware or microcontrollers?

Technical

8.What is interrupt latency, and what steps can you take to reduce it?

Technical

9.What are some of the standard buses used in a computer system and what are they used for?

Technical

10.How are timers used in systems with embedded computing devices or appliances?

Operational

11.What are some of the common hardware and software errors or issues you run into when developing firmware?

Technical

12.What is a semaphore, and how is it used?

Technical

13.Are you familiar with a recursion function? If so, can you discuss when to use it and what happens when it is declared inline?

Technical

14.What is one advantage of using C++ code for the Arduino platform?

Operational

15.What programming languages have you used to write firmware?

Technical

16.Can you define middleware, and discuss how it is used?

Operational

17.Can you describe the steps required to create a firmware architecture?

Technical

18.Can you describe some of the fundamental differences between firmware and other types of software?

Technical

19.What is flashing, and how is it used with firmware?

Technical

20.What does the acronym EFI stand for, and how is it used in firmware engineering?

Operational

21.Do you know of any techniques which can be used to reduce the power requirements for an embedded system?

Operational

22.How would you store data from a serial receiver line by using a specific data structure?

Technical

23.Can you define the term static keyword and describe its function?

Technical

24.What are some of the uses of volatile keyword when writing code in the C programming language?

Operational

25.What is one way you can test firmware before implementing it in the embedded system?

General

26.Assuming that I have no technical background, please describe how firmware communicates with electronic devices.

Operational

27.Have you ever performed testing for middleware?

Technical

28.What is RISC architecture, and does it require firmware?

Operational

29.Do you have experience working on computer kernels?

Operational

Firmware Engineer Mock Interview

Do you have experience working on computer kernels?

30Firmware Engineer Interview Questions & Answers

1.How would you explain firmware to someone in our organization who doesnâ€™t have a technical background?

2.Can you describe the difference between a driver and a piece of firmware?

3.How would you define embedded software design?

4.What is the programming language commonly used to write code for microcontrollers?

5.Does a computer operating system require firmware?

6.What are some of the differences between a microprocessor and a microcontroller?

7.Can you define DMA, and discuss how it interfaces with devices containing firmware or microcontrollers?

8.What is interrupt latency, and what steps can you take to reduce it?

9.What are some of the standard buses used in a computer system and what are they used for?

10.How are timers used in systems with embedded computing devices or appliances?

11.What are some of the common hardware and software errors or issues you run into when developing firmware?

12.What is a semaphore, and how is it used?

13.Are you familiar with a recursion function? If so, can you discuss when to use it and what happens when it is declared inline?

14.What is one advantage of using C++ code for the Arduino platform?

15.What programming languages have you used to write firmware?

16.Can you define middleware, and discuss how it is used?

17.Can you describe the steps required to create a firmware architecture?

18.Can you describe some of the fundamental differences between firmware and other types of software?

19.What is flashing, and how is it used with firmware?

20.What does the acronym EFI stand for, and how is it used in firmware engineering?

21.Do you know of any techniques which can be used to reduce the power requirements for an embedded system?

22.How would you store data from a serial receiver line by using a specific data structure?

23.Can you define the term static keyword and describe its function?

24.What are some of the uses of volatile keyword when writing code in the C programming language?

25.What is one way you can test firmware before implementing it in the embedded system?

26.Assuming that I have no technical background, please describe how firmware communicates with electronic devices.

27.Have you ever performed testing for middleware?

28.What is RISC architecture, and does it require firmware?

29.Do you have experience working on computer kernels?

30.How can you reduce the amount of memory required in an embedded system?