Free Amazon AWS-DEA-C01 Exam Questions
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Amazon AWS-DEA-C01 Exam Questions
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Provided By: Amazon
- Exam: AWS Certified Data Engineer - Associate
- Certification: AWS Certified Data Engineer
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Total Questions: 513
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Updated On: Apr 30, 2025
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Rated: 4.9 |
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Online Users: 1026
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Question 1
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A company receives test results from testing facilities that are located around the world. The company storesthe test results in millions of 1 KB JSON files in an Amazon S3 bucket. A data engineer needs to process thefiles, convert them into Apache Parquet format, and load them into Amazon Redshift tables. The dataengineer uses AWS Glue to process the files, AWS Step Functions to orchestrate the processes, and AmazonEventBridge to schedule jobs.The company recently added more testing facilities. The time required to process files is increasing. The dataengineer must reduce the data processing time.Which solution will MOST reduce the data processing time?
Answer: B
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A company receives test results from testing facilities that are located around the world. The company storesthe test results in millions of 1 KB JSON files in an Amazon S3 bucket. A data engineer needs to process thefiles, convert them into Apache Parquet format, and load them into Amazon Redshift tables. The dataengineer uses AWS Glue to process the files, AWS Step Functions to orchestrate the processes, and AmazonEventBridge to schedule jobs.The company recently added more testing facilities. The time required to process files is increasing. The dataengineer must reduce the data processing time.Which solution will MOST reduce the data processing time?
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Question 2
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A Cloud Data Engineering Team is working on optimizing the query performance of an Amazon Redshift cluster, serving as the primary data warehouse for their organization. The warehouse contains a large-scale dataset, including extensive historical sales data.
The team has identified that the query performance issues are mainly due to inefficient data scanning and retrieval processes, especially in tables with complex query patterns. They need a solution that specifically optimizes the way data is stored and accessed in these tables to reduce execution times for complex queries.
Which of the following techniques should they implement to improve the query performance on these large tables?
Answer: D
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A Cloud Data Engineering Team is working on optimizing the query performance of an Amazon Redshift cluster, serving as the primary data warehouse for their organization. The warehouse contains a large-scale dataset, including extensive historical sales data.
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Question 3
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A data engineer needs to build an enterprise data catalog based on the company's Amazon S3 buckets andAmazon RDS databases. The data catalog must include storage format metadata for the data in the catalog.Which solution will meet these requirements with the LEAST effort?
Answer: B
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A data engineer needs to build an enterprise data catalog based on the company's Amazon S3 buckets andAmazon RDS databases. The data catalog must include storage format metadata for the data in the catalog.Which solution will meet these requirements with the LEAST effort?
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Question 4
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A company is deploying a stateful application on Amazon EC2 that requires temporary storage for processing large datasets with maximum I/O. The application must also maintain a smaller subset of essential state data that needs to persist beyond the life of the instance. The company needs a storage solution that ensures the essential data is not lost if the EC2 instance is stopped or terminated.
Which combination of storage solutions should the company choose?
Answer: C
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A company is deploying a stateful application on Amazon EC2 that requires temporary storage for processing large datasets with maximum I/O. The application must also maintain a smaller subset of essential state data that needs to persist beyond the life of the instance. The company needs a storage solution that ensures the essential data is not lost if the EC2 instance is stopped or terminated.
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Question 5
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A Data Engineering Consultant is working on a data processing project that involves AWS services, and the project's code is stored in a Git repository hosted on AWS CodeCommit. The project has a well-established branching strategy, and the consultant needs to update their local copy with the latest changes from the remote repository's main branch, to include recent updates related to AWS configurations and scripts.
Which Git command should be used to update the local repository with these latest changes from AWS CodeCommit?
Answer: D
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A Data Engineering Consultant is working on a data processing project that involves AWS services, and the project's code is stored in a Git repository hosted on AWS CodeCommit. The project has a well-established branching strategy, and the consultant needs to update their local copy with the latest changes from the remote repository's main branch, to include recent updates related to AWS configurations and scripts.