What is the role of the Product Owner in refining the Backlog during a Sprint?

Short answer: The Product Owner: Continuously refines the Product Backlog — even during a Sprint. Works with stakeholders and the team to break down large items. Clarifies acceptance criteria. Re-prioritizes based on new insights. Example: Mid-Sprint, the PO learns from sales that customers are struggling with onboarding. They update the backlog by splitting “User Onboarding Flow” into smaller, clearer stories for the next Sprint.

Real-world example (ShopNest)

ShopNest team runs 2-week sprints. Daily standup is blockers-only, not a status novel.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.