Networking bank APIs & Delivery Networking / 5 questions Your progress 0 / 5 done Saved in this browser. Reset All 5 Medium 4 Hard 1 Hide done No questions match those filters. 1 What are the trade-offs of REST vs GraphQL for a frontend? Medium 2 What is over-fetching and under-fetching, and how does GraphQL address them? Medium 3 How does CORS work, and when is a preflight request sent? Medium 4 What is a CDN, and how does edge caching reduce latency? Medium 5 How do you design a client that gracefully handles flaky networks (retries, timeouts, idempotency)? Hard ← Previous Real-Time & Streaming