Your question is Check for Model Overfitting. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
You've trained a model that looks strong on the training set, but the validation score is noticeably worse. The team wants to know whether the gap means the model is overfitting.
How do you validate that a model is not overfitting?