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1
What is RTK Query and why was it introduced?
Expert
High
2
How is RTK Query different from createAsyncThunk?
Expert
High
3
What problem does RTK Query solve compared to traditional data fetching with Redux?
Expert
High
4
What are the two main APIs in RTK Query? (createApi and fetchBaseQuery)
Expert
High
5
How do you define an API slice using createApi()?
Expert
High
6
What’s the purpose of reducerPath in createApi()?
Expert
High
7
What are endpoints in RTK Query?
Expert
High
8
What’s the difference between query and mutation endpoints in RTK Query?
Expert
High
9
How do you use auto-generated hooks from RTK Query (e.g., useGetPostsQuery)?
Expert
High
10
How do you refetch data manually in RTK Query?
Expert
High
11
How do you handle caching and invalidation in RTK Query?
Expert
High
12
What are tags and how do they help in cache invalidation?
Expert
High
13
How can you invalidate cache for specific queries?
Expert
High
14
How do you customize request headers or authentication tokens in RTK Query?
Expert
High
15
How do you handle request errors or loading states?
Expert
High
16
How can RTK Query work with GraphQL or custom fetch logic?
Expert
High
17
How does RTK Query handle deduplication of requests?
Expert
High
18
How can you integrate RTK Query with server-side rendering (SSR)?
Expert
High
19
How do you perform optimistic updates in RTK Query?
Expert
High
20
How can you manually update the cache using updateQueryData?
Expert
High
21
How do you reset or clear RTK Query cache programmatically?
Expert
High
22
What are best practices for structuring RTK Query API slices in large apps?
Expert
High
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1
Fundamentals
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Basics
Store
2
State management
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Slice
Actions
Reducers
3
Async & data fetching
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RTK Query
Thunk
4
Putting it together
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