Tech Screening

Node.js event-loop pressure

A Node.js API has normal CPU but high tail latency. How would you investigate event-loop delay and blocking work?

What this task practices

Node.js event-loop pressure is a tech screening interview exercise that trains prompt interpretation, explicit assumptions, a concrete response, and a clear explanation of tradeoffs. The catalog marks it as hard difficulty. It focuses on Debugging, Tradeoffs, Technical Reasoning. The signed-in workspace provides the tools for the round and evaluates the attempt against task-specific criteria. Reference solutions, hidden checks, evaluator instructions, and candidate work remain private.