Agiliad Technologies Embedded Software Engineer interview questions

I have over 7+ years of experience. I interviewed for Singapore location. The interviewer was from India. Interviewer for knowledgeable. Although the questions were extremely basic, I did not make it to the second round, could be because of Visa policy. They asked questions on volatile, Static, swapping integer c program, SPI, I2C (which is faster), how do u configure I2C, and discussion on my previous projects. I gave my first round, pretty simple.