The key to providing successful answers to competency questions is preparation, and the good news is that this is relatively easy to do. Firstly, it's essential that you read and understand the job description. Next, from the job description pick out the main competencies that we are looking for and think of examples of when and how you've demonstrated each of these. Try to draw on a variety of experiences from your studies, previous employment or any work experience you've undertaken.
Familiarise yourself with the STAR approach to answering questions and practise your responses with a friend or family member.