Glossary term
What is read-heavy? Meaning for developers
A system with many more reads than writes, so caches and replicas matter most. A URL shortener is about 100 reads to 1 write.
Learn it properly · Practical Design ProblemsLesson 0: How to Run a Practical Design InterviewRequirements, API, data model, main algorithm, scale and failure, trade-offs. A frame you can repeat for every design question that follows.