Top GraphQL Interview Questions and Answers | GraphQL Job Interview Preparation

Preparing for a GraphQL job interview? In this video, we’ll go through the most frequently asked GraphQL Interview Questions and Answers to help you get job-ready.

You’ll learn about queries, mutations, subscriptions, schemas, resolvers, performance optimization, and real-world use cases that are commonly discussed in interviews. Whether you’re a beginner or an experienced developer, these Q&A will give you the confidence to ace your next GraphQL interview.

👉 Watch till the end for expert tips.
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00:00 Introduction
01:00 What is GraphQL?
02:00 How is GraphQL different from REST?
03:00 Explain Queries in GraphQL.
04:00 What are Mutations in GraphQL?
05:00 What are Subscriptions in GraphQL?
06:00 What is a GraphQL Schema?
07:00 Explain Resolvers in GraphQL.
08:00 How does GraphQL handle errors?
09:00 What is GraphQL Playground?
10:00 How to implement authentication in GraphQL?
11:00 What are Fragments in GraphQL?
12:00 Explain batching and caching in GraphQL.
13:00 What is introspection in GraphQL?
14:00 How do you optimize GraphQL performance?
15:00 What is Apollo Client/Server?
16:00 How do you integrate GraphQL with databases?
17:00 How to secure a GraphQL API?
18:00 Final Tips & Conclusion


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