You can answer this question using an example of a time when you were assigned an extraordinarily difficult classroom or specific student.
"Last year I had a student come in part way through the year. In addition to being diagnosed with autism, the student was also highly OCD. I spent a lot of my spare time doing research and reading case studies so that I could best be equipped if this student had an outburst in the classroom. I do appreciate the challenge this situation brought to me because it pushed me to further understand the needs of this unique student."