Question 1

True or false: GraphQL resolvers can be asynchronous and fetch data from multiple sources like databases and microservices.

Accepted Answer

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

Question 2

True or false: GraphQL can only be used with JavaScript and Node.js backends.

Accepted Answer

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

Question 3

True or false: GraphQL supports subscriptions for real-time data, using WebSockets under the hood.

Accepted Answer

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

Question 4

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

Accepted Answer

False. GraphQL does not require the 'id' field; you request only the fields you need, and identifiers are optional.

Question 5

True or false: GraphQL automatically caches all query results on the server side by default.

Accepted Answer

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

Question 6

True or false: GraphQL was developed internally by Facebook in 2012 before being open-sourced in 2015.

Accepted Answer

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

Question 7

True or false: GraphQL servers typically return a 200 HTTP status code even when an error occurs in the query, placing error details inside the response body.

Accepted Answer

True. True. GraphQL APIs commonly use HTTP 200 for both successful and error responses, including an 'errors' array in the JSON body instead of relying on HTTP status codes for query-level issues.

Question 8

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

Accepted Answer

True. True. A single mutation operation can include multiple root fields, each a mutation. They execute sequentially per the GraphQL spec, no special syntax like aliases required.

GraphQL Trivia Questions