When deciding on the example you want to provide, break down the overall impact of what you uncovered. Additionally, a large focus of this question is on your communication style. Professionalism is the key to the communication you should exhibit in your example.

Some of the qualities they advertise they're looking for in their candidates are an ability "to perform professionally over the long term" and "a strong character with communicative competence." Consider how'll you'll exhibit these traits when crafting your answer.

"My approach in such situations is to always question my findings first. I'd learn everything I could before drawing any conclusion. The last thing I'd want to do is lose credibility through assumption. If I still wasn't exactly sure why the inefficiency exists, whether by design or not, I'd follow the appropriate channels and share my discovery with all sorts of questions. This way, when presenting it, I'm exhibiting a mature thought process, strong attention to detail, and an active inquisitiveness thinking of the greater good of the team. Having said that, let me give you of a recent example."