I applied off-campus through a referral. After that, my resume got shortlisted, and a 2-hour technical interview was arranged with one of the senior engineers. The interview was tough, and I learned a lot of new things from it.

Q1. Write a C function to print the digits between LSB & MSB of a given number.

Q2. There are 2 Microcontrollers of 8 bits each. You can give input on one side and receive output on the other side. If exactly 2 pins have been swapped, in how many minimum numbers of trials can you detect which 2 pins were swapped?

Q3. While the data is being processed in a C code, is the data which is initialized stored in Stack or data segment?

Q4. What is a Makefile?

Q5. Write a C code for transferring data from one destination to another destination (Pointers working).

Q6. One Microcontroller is connected with a Temperature sensor. Explain its working with the help of SPI or I2C.