When answering this question, you'll want to convey confidence in your ability to work with large data sets. Assure the interviewer that you understand this is part of the position and share any examples about working with large data sets from previous experiences.

"I am comfortable working with large data sets. In fact, I enjoy analyzing data and using it to make decisions that better customer experiences. Several years ago, I worked as a social media manager for a large corporation, and I analyzed the data for their social media platforms on a weekly basis. My findings informed the type of content the company posted and when it was posted."