HackerRank coding questions. Average level.

Should meet maximum test criteria like time complexity and handle certain input values.

Next is the F2F interview. It's a one-day, three-round interview process. If you clear the first day, you'll proceed to the next interview; otherwise, HR will say, "We will update you."

1st round: Basic coding questions on volatile, use cases, bit manipulation, data structures, and pointers. I have an ECE background, so expect questions on Shannon capacity theorem, GSM, and modulation techniques.

2nd round: Puzzles, C questions, low-pass filters, and ADC working.

3rd round: Debugging quests, memory leaks, dangling pointers, storage classes, and questions related to previous work experience.

Volatile pointers.

Constant pointers.

Dangling pointers.

Real-life failures and how you overcame them.

Watchdog timers.