Your question is Bagging vs Boosting in GBM. 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).
Explain bagging vs boosting in the context of GBM
Asked in the ML basics stage. Compare how the models are trained, how they combine weak learners, how errors are handled, and why Gradient Boosting Machine is classified as boosting rather than bagging.