What is your design process? Describe what methods you follow?
UX design is a relatively new discipline, and is itself i rapidly iterated upon to find new ways of solving problems. This reflects an ever changing process and is a toolkit for a UX designer, so listen out for both a clear process and for a deep curiosity to learn.
Good UX designers will talk about a user-centric approach to design, which follows a thorough understanding of both user and business goals. This process should include competitor analysis, user interviews and surveys, content audits, information architecture and sitemaps, user personas, business model canvases, wireframes to prototypes, A/B testing to iterate small product features and even design elements.
By learning directly from users themselves, each of these tasks ties tightly back to the creation of a product that users will love when they use the product or service.