I have learned Bloom's taxonomy with comprehension instead of understanding. So if in an algorithm's class, you were taught that algorithm X was exponential tim

I have learned Bloom's taxonomy with comprehension instead of understanding. So if in an algorithm's class, you were taught that algorithm X was exponential time, then the exam question at the comprehension level can be, "describe why does it take exponential time to run algorithm X". An applying level question could be, "Find the running time of algorithm Y (which was never discussed in class)."