Embedded C Interview Questions

58 embedded c interview questions shared by candidates

The questions themselves deserve a separate paragraph. The interview was split to several quizzes: hardware design, rtos-related, c, c++, linux, security. Majority of the questions was single-answer test questions. Few open questions to write some snippet. The hardware and security part was quite ok. The rest was not. The C/C++ questions were based on a code snippets prepared exactly for interview purpose. So, there were some crazy-looking constructs like 3[arr] + (arr+1)[1], !!!arr, &(*(&arr[1]+1)+2). Things that you should never see on production. I don't see a point of asking such questions. This kind of questions doesn't check if you're good engineer or not. There were no good coding practices questions, no software design-related. All C++ questions were pre-C++11.
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C/C++ Embedded Developer

Interviewed at Klika Tech

4
Jun 26, 2023

The questions themselves deserve a separate paragraph. The interview was split to several quizzes: hardware design, rtos-related, c, c++, linux, security. Majority of the questions was single-answer test questions. Few open questions to write some snippet. The hardware and security part was quite ok. The rest was not. The C/C++ questions were based on a code snippets prepared exactly for interview purpose. So, there were some crazy-looking constructs like 3[arr] + (arr+1)[1], !!!arr, &(*(&arr[1]+1)+2). Things that you should never see on production. I don't see a point of asking such questions. This kind of questions doesn't check if you're good engineer or not. There were no good coding practices questions, no software design-related. All C++ questions were pre-C++11.

Siemens: 1) Inheritance using private, protected, public for child class what is the scope for all. 2) can private parent class be accessible by child class. Yes/No. If yes then how. If no then why? 3) c program on double linked list to find minimum of all list using double pointer. 4) pointer to pointer what is the output 5) Socket programming any idea? 6) What is context switching 7) communication protocol. 8) oops concepts
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C/C++ Embedded Developer

Interviewed at Siemens

4
May 9, 2021

Siemens: 1) Inheritance using private, protected, public for child class what is the scope for all. 2) can private parent class be accessible by child class. Yes/No. If yes then how. If no then why? 3) c program on double linked list to find minimum of all list using double pointer. 4) pointer to pointer what is the output 5) Socket programming any idea? 6) What is context switching 7) communication protocol. 8) oops concepts

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