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      Modem Firmware Engineering Interview

      24 Nov 2020
      Anonymous interview candidate
      San Jose, CA
      No offer
      Positive experience
      Average interview

      Application

      I applied through a recruiter. I interviewed at Qualcomm (San Jose, CA) in Nov 2020

      Interview

      2 Technical Rounds of 35 minutes and 1 hour 15 min. Coding question in C/C++. Topics - Driver Development, good knowledge of C, Computer architecture, University Project, and Work experience related questions.

      Interview questions [1]

      Question 1

      1. Pointer declaration and How it looks in the memory? 2. How to define concurrency in C programming? 3. Generic pointer? 4. Switch and if-else differences and which one will be more efficient? 5. Volatile, what bug could occur If volatile not declared? 6. Difference between structure and union? 7. Use cases of the union in the Embedded programming? 8. What is the Recursion function? 9. How recursive programming can be dangerous in Embedded programming(stack overflow)? 10. What is multithreading programming? Examples used in the project? 11. Resume based questions on work experience and University project? 12. What is Virtual Memory? 13. What is Cache? 14. What is Static and its use cases? 15. Find the binary value of a negative number(text editor) 16. Set and reset bit in a 32bit register(text editor) 17. Write a function to count the number of zeroes before the occurrence of 1 in a binary number from LSB?
      Answer question
      3