GraphQL Quiz — Schemas, Resolvers & Queries
GraphQL lets clients request exactly the data they need. Understanding schema design, resolvers, the N+1 problem with DataLoader, and when to use GraphQL vs REST is a valuable skill for full-stack developers.
GraphQL is widely adopted at product companies with complex data requirements. Knowing how to design schemas and optimise resolver performance gives you an edge for API-heavy roles.
Sample Questions
3 of 10Q1.What is a GraphQL resolver?
Q2.What problem does DataLoader solve in GraphQL?
Q3.What is the key advantage of GraphQL over REST for frontend clients?
Answer all 3 questions to see your score
Get your verified GraphQL score
Take the full 10-question quiz. Your score gets added to your developer resume as a verified skill badge — proof that you actually know GraphQL.
How verified skills work
Take the GraphQL quiz
10 adaptive questions covering real-world scenarios, not just syntax recall.
Your score is recorded
Skeelzy tracks your accuracy per skill over time — multiple attempts improve your verified score.
Add it to your resume
Your GraphQL accuracy appears as a verified badge on your public Skeelzy resume — proof for recruiters.