As banks have adjusted the way they do business over time to suit the needs of customers that are becoming more automated and mobile, the traditional Teller job description has certainly changed with the advancements in technology. With this question, your interview is simply looking to gauge how flexible you would be if hired for this role because Union Bank of Nigeria plc will be relying on the person hired this role to be highly adaptable in a changing work environment. As you answer, let your interviewer know that you are aware of how rapidly the banking industry is changing and give examples of a time or two you had to be flexible in your own job duties. Then, really put thought into what you feel are ways that the traditional Teller job role has changed and will continue to change over time.