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Embedded C Interview Questions

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58 embedded c interview questions shared by candidates

They started out with basic questions in C. 1. What is a static variable? 2. What the difference between static and constant variable? 3. How do you declare a const pointer to an integer variable? 4. How do you declare a pointer to an integer constant? 5. What are the stages of compilation?
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Embedded Systems C Developer

Interviewed at MosChip

3.9★
Nov 6, 2015

They started out with basic questions in C. 1. What is a static variable? 2. What the difference between static and constant variable? 3. How do you declare a const pointer to an integer variable? 4. How do you declare a pointer to an integer constant? 5. What are the stages of compilation?

Linked list, little /big endian, find logical error in c code.First round telephony of around 1hr, and then in technically coding in Danfoss office (Chennai) around for 2hr. HR provided company and project description for 30mins. Travel reimbursement provided.
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Embedded C

Interviewed at Danfoss

3.7★
Oct 24, 2018

Linked list, little /big endian, find logical error in c code.First round telephony of around 1hr, and then in technically coding in Danfoss office (Chennai) around for 2hr. HR provided company and project description for 30mins. Travel reimbursement provided.

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.

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