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Amazon Web Services Data-Engineer-Associate Exam With Confidence Using Practice Dumps

Exam Code:
Data-Engineer-Associate
Exam Name:
AWS Certified Data Engineer - Associate (DEA-C01)
Certification:
AWS Certified Data Engineer
Vendor:
Amazon Web Services
Questions:
218
Last Updated:
Jan 10, 2026
Exam Status:
Stable
Amazon Web Services Data-Engineer-Associate

Data-Engineer-Associate: AWS Certified Data Engineer Exam 2025 Study Guide Pdf and Test Engine

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AWS Certified Data Engineer - Associate (DEA-C01) Questions and Answers

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Question 1

A company needs to store semi-structured transactional data in a serverless database.

The application writes data infrequently but reads it frequently, with millisecond retrieval required.

Options:

A.

Store the data in an Amazon S3 Standard bucket. Enable S3 Transfer Acceleration.

B.

Store the data in an Amazon S3 Apache Iceberg table. Enable S3 Transfer Acceleration.

C.

Store the data in an Amazon RDS for MySQL cluster. Configure RDS Optimized Reads.

D.

Store the data in an Amazon DynamoDB table. Configure a DynamoDB Accelerator (DAX) cache.

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Question 2

A data engineer is optimizing query performance in Amazon Athena notebooks that use Apache Spark to analyze large datasets that are stored in Amazon S3. The data is partitioned. An AWS Glue crawler updates the partitions.

The data engineer wants to minimize the amount of data that is scanned to improve efficiency of Athena queries.

Which solution will meet these requirements?

Options:

A.

Apply partition filters in the queries.

B.

Increase the frequency of AWS Glue crawler invocations to update the data catalog more often.

C.

Organize the data that is in Amazon S3 by using a nested directory structure.

D.

Configure Spark to use in-memory caching for frequently accessed data.

Question 3

A company stores logs in an Amazon S3 bucket. When a data engineer attempts to access several log files, the data engineer discovers that some files have been unintentionally deleted.

The data engineer needs a solution that will prevent unintentional file deletion in the future.

Which solution will meet this requirement with the LEAST operational overhead?

Options:

A.

Manually back up the S3 bucket on a regular basis.

B.

Enable S3 Versioning for the S3 bucket.

C.

Configure replication for the S3 bucket.

D.

Use an Amazon S3 Glacier storage class to archive the data that is in the S3 bucket.

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