Your question is LangGraph Concepts: ReAct and Reducers. 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 LangGraph concepts such as ReAct and reducer functions.
Asked in the Hands-on + System Design stage. Explain the concepts practically, including how they map to graph nodes, shared state, tool execution, and state updates. Discuss design choices, failure handling, and how you would evaluate or monitor such a workflow.