Design a Rate Limiter
A rate limiter protects a system from overload by capping how many requests a client can make — it looks like picking one algorithm, until atomic-per-key stops adding up to atomic-per-decision once real rules stack up.
How the round runs
Hard · 5 stages · 9 questions · 60 min
~6 min
Requirements Gathering
lists
~6 min
API Design
api rows
~27 min
High-Level Design
whiteboard
~6 min
Database Design
schema
~15 min
Deep Dives
whiteboard
Set up your round
Level
Interviewer
Duration
Mid-Level · Standard · 60 min