This requirement was for their Qualcomm Location (GNSS) Team for a C++ profile.

I applied through the Qualcomm portal and was called for an interview at their Bagmane Campus, Bangalore.

The interview lasted for around 3 hours. In the middle, the manager also joined, and it turned into an interview with a two-person panel. The interview experience was good; they gave breaks in the middle, and the conversations were friendly. They wanted the best answers.

1. Inter-process communication.

2. How threads block and wait while other threads execute (write in pseudocode).

3. Virtual memory.

4. Multithreading.

5. Prime number, even number, odd number, and composite number identifying programs and optimizations.

6. Linux user and kernel mode differences.

7. Create your own string class (mainly to check my thought process and boundary scenarios handling).

8. Descending and ascending stacks in OS.

9. Code for two-process communication with a common buffer.

10. Three threads are waiting for I/O. How will you schedule if you don't know which thread will get input?

11. Abstract class, friend class, private derived class, and multithreading practical examples.

12. Memory defragmentation algorithms and techniques.

13. Synchronization between threads.

14. Static initialization fiasco, auto pointer, and smart pointers.