Free Amazon Data-Engineer-Associate Exam Questions
Absolute Free Data-Engineer-Associate Exam Practice for Comprehensive Preparation
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Amazon Data-Engineer-Associate Exam Questions
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Provided By: Amazon
- Exam: AWS Certified Data Engineer Associate (DEA-C01)
- Certification: AWS Certified Associate
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Total Questions: 582
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Updated On: Jan 04, 2026
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Rated: 4.9 |
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Online Users: 1164
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Question 1
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As a Data Engineer, you've been given the task of enhancing the performance of a business analytics application. This application predominantly performs complex, read-intensive queries against large, historical datasets.
The data is currently housed in a MySQL database on Amazon RDS. However, due to the increasing dataset size and query complexity, query performance has significantly degraded. To address this issue, you are considering implementing Amazon ElastiCache.
Which caching strategy would be most effective in this scenario to improve query performance?
Answer: B
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As a Data Engineer, you've been given the task of enhancing the performance of a business analytics application. This application predominantly performs complex, read-intensive queries against large, historical datasets.
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Question 2
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A data engineer is designing a new data lake architecture for a company. The data engineer plans to useApache Iceberg tables and AWS Glue Data Catalog to achieve fast query performance and enhanced metadatahandling. The data engineer needs to query historical data for trend analysis and optimize storage costs for alarge volume of event data.Which solution will meet these requirements with the LEAST development effort?
Answer: A
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A data engineer is designing a new data lake architecture for a company. The data engineer plans to useApache Iceberg tables and AWS Glue Data Catalog to achieve fast query performance and enhanced metadatahandling. The data engineer needs to query historical data for trend analysis and optimize storage costs for alarge volume of event data.Which solution will meet these requirements with the LEAST development effort?
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Question 3
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A data engineer has a one-time task to read data from objects that are in Apache Parquet format in an Amazon S3 bucket. The data engineer needs to query only one column of the data. Which solution will meet these requirements with the LEAST operational overhead?
Answer: B,D
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Question 4
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A retail company has a customer data hub in an Amazon S3 bucket. Employees from many countries use the
data hub to support company-wide analytics. A governance team must ensure that the company's data analysts
can access data only for customers who are within the same country as the analysts.
Which solution will meet these requirements with the LEAST operational effort?
Answer: B
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Question 5
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As part of a large-scale data ingestion project, a Data Engineer needs to configure AWS Lambda to process files as soon as they are uploaded to an Amazon S3 bucket. The files are expected to arrive at a high rate.
Which of the following approaches should the Data Engineer implement to ensure efficient and reliable processing of the uploaded files?
Answer: C
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As part of a large-scale data ingestion project, a Data Engineer needs to configure AWS Lambda to process files as soon as they are uploaded to an Amazon S3 bucket. The files are expected to arrive at a high rate.