I applied online. The process took 8 months. I interviewed at COMEXUS (Ciudad de Mexico) in Feb 2018
Interview
15-minute Skype interview. I answered about 10 questions. It was all in Spanish. They want to test your knowledge of the program you're applying to as well as the country. They want to make sure you're the best fit.
Interview questions [2]
Question 1
What do you know about (topic related to your project)?