AWS Certified Data Engineer – Associate (DEA-C01)

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A fast-growing e-commerce company is designing the backend for its product catalog. The system must handle a high volume of read requests with very low latency. Product attributes vary significantly between categories, so a flexible schema is essential. Which type of cloud data store is the best fit for this use case?

A data warehouse (e.g., BigQuery, Redshift) An object storage service (e.g., Amazon S3, GCS) A relational database (e.g., Cloud SQL, RDS) A document-oriented NoSQL database (e.g., MongoDB Atlas, Firestore)

Correct Answer:

A document-oriented NoSQL database (e.g., MongoDB Atlas, Firestore)

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