Free Amazon Data-Engineer-Associate Practice Exam Questions and Answers 2026

A data engineering team needs to manage and query a continuously evolving dataset of customer transactions stored in Amazon S3. They use Amazon Athena for querying and require an automated solution to handle schema changes in the dataset.

What AWS service should the team use to efficiently manage the schema and ensure seamless integration with Athena for updated data queries?

A healthcare organization is looking to store highly confidential patient records in an Amazon S3 bucket. The storage solution must comply with regulatory standards that require not only encryption of data at rest but also stringent control and auditing over who can access the encryption keys. Since their IT team lacks the resources to manage encryption processes manually, they need an encryption method that is both secure and manageable within their AWS environment.

What encryption method should they use for their S3 bucket to ensure compliance with these standards?

A Cloud Data Engineer on your team is tasked with creating a new feature for a data processing application hosted on AWS. The feature development will involve multiple code changes and is expected to take a few weeks.

To ensure their changes do not affect the stable version of the application during development, which Git command should they use initially to safely begin working on the new feature in their AWS CodeCommit repository?

A financial services company is using Amazon RDS for PostgreSQL to manage sensitive customer data. The database is accessed by various applications deployed in an AWS environment. The company's security policy mandates that the data must be encrypted at rest. The database administrator needs to enable encryption for the existing unencrypted database with minimal downtime.

Which of the following approaches should the administrator take?

A company plans to move 10 TB of multimedia content from their local servers to AWS, with a portion of the data being updated weekly. These updates must be reflected in the Amazon S3 bucket where the data will be stored. The multimedia content consists of large image and video files.

To automate and schedule these data transfers effectively, which AWS service should the company employ?