Most actors don't want to be pigeon-holed into a particular role, but you have to start somewhere! It's important to know your strengths and be willing to take on new challenges.
Having a clear sense of who you are, and what you're good at, is a great start. If you are going to offer examples of preferences for roles you haven't tried, keep them within the range of what you know you can do. This will help casting directors and agents to know what auditions to recommend.
"I would prefer playing the bad boy or the hot shot, but I am also open to trying the contender or the fall guy."
Entry Level answer example
"My experience is limited; however, I have preferred playing roles that are more humorous in nature. I love comedy and find the best fit when I'm playing a character that offers comedic relief."
Experienced answer example
"I do not want to be typecast in my career as an actor which is why I often accept roles that are outside of my comfort zone. I prefer to first read a script and then see if it speaks to me in any way. The characters that I can relate to are the ones that I embody the best."