A startup is building a new serverless application. They need a fully managed GraphQL API layer that can securely access data from Amazon DynamoDB, AWS Lambda, and Amazon OpenSearch Service. Which AWS service should they use to build this API?

Answer options:

Amazon API Gateway

AWS AppSync

AWS Step Functions

Amazon Cognito

How to approach this question

Match 'GraphQL API' to the AWS managed service designed for it.

Full Answer

B.AWS AppSync✓ Correct

AWS AppSync is a fully managed service that makes it easy to develop GraphQL APIs by handling the heavy lifting of securely connecting to data sources like DynamoDB, Lambda, and more.

Common mistakes

Choosing API Gateway, which requires custom Lambda resolvers to handle GraphQL properly.

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Practice the full AWS Solutions Architect Professional SAP-C02 Practice Exam 1

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