In any technical interview the interviewer would ask you this question to explain about your projects so RPA interviews are not an exception.
To answer this question you need to explain the projects that you have done at high level. In the below video find out an answer template to answer this question. You can find the entire course which consists of top 30 RPA interview questions at the below link, https://www.udemy.com/course/crack-any-rpa-developer-interview/?referralCode=99CA0B0F628037AF1821