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GraphQL Trivia Questions

How much do you really know about GraphQL? Below are 8 true or false statements. Click each one to reveal the answer and explanation.

1.

GraphQL supports subscriptions for real-time data, using WebSockets under the hood.

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Easy
✓ TRUE

True. Subscriptions allow clients to receive live updates via WebSockets, making GraphQL suitable for real-time apps.

2.

GraphQL resolvers can be asynchronous and fetch data from multiple sources like databases and microservices.

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Easy
✓ TRUE

True. Resolvers are flexible functions that can combine data from REST APIs, databases, or other services seamlessly.

3.

GraphQL can only be used with JavaScript and Node.js backends.

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Easy
✗ FALSE

False. GraphQL is language-agnostic and has implementations in Python, Ruby, Java, Go, and many other languages.

4.

GraphQL was developed internally by Facebook in 2012 before being open-sourced in 2015.

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Medium
✓ TRUE

True. GraphQL was created by Facebook for their mobile apps and later released publicly, revolutionizing API design.

5.

In GraphQL, every query must explicitly request the 'id' field to get a unique identifier.

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Medium
✗ FALSE

False. The 'id' field is not required; you only request fields you need, and identifiers are optional.

6.

GraphQL automatically caches all query results on the server side by default.

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Medium
✗ FALSE

False. GraphQL has no built-in caching; developers must implement caching manually, often using tools like DataLoader.

7.

In GraphQL, you can send multiple mutations in a single request without any special syntax.

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Hard
✗ FALSE

False. While you can batch queries, mutations run sequentially by default; aliasing is needed to run them in one request.

8.

GraphQL always returns a 200 HTTP status code, even when an error occurs in the query.

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Hard
✓ TRUE

True. Unlike REST, GraphQL typically uses HTTP 200 with error details inside the response body, not status codes.

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