React-query quiz

Test your React-query knowledge with a free interactive quiz — 50 questions with answers and explanations. No signup needed to play.

Which hook fetches data?

1. Which hook fetches data?
2. `refetchInterval: 30_000` does what?
3. How do you disable a query conditionally?
4. Which hook performs writes (POST/PATCH/DELETE)?
5. How do you fire multiple queries in parallel?
6. How can you avoid duplicating query keys across the app?
7. What does `gcTime` (formerly `cacheTime`) do?
8. After a successful `useMutation`, how do you keep dependent queries up to date?
9. You must wrap your app in:
10. How can a `queryFn` access the query key?
11. What does `select` option on `useQuery` do?
12. What is a "dependent query"?

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