Name your framework, show how you gather data for it, and explain how you communicate "no" to the stakeholders whose items are deprioritised.
Look for a structured framework: RICE, MoSCoW, value vs effort matrix, or custom. Best answers combine quantitative signals (impact estimates, user data) with qualitative input (strategic alignment, customer interviews). Candidates should mention communicating decisions and managing disappointed stakeholders.
Core PM skill. Red flags: purely gut-driven decisions, or purely data-driven without strategic thinking. Best candidates balance both and explain their reasoning clearly.