AWSCertified Data Engineer - Associate
Domain 3Objective 1
Task 3.1: Automate Data Processing by Using AWS Services DEA-C01 Practice Questions (Page 3)
Part of the Content Domain 3: Data Operations and Support domain, which accounts for 22% of the DEA-C01 exam. AWS does not publish an official question count, but from its 130-minute exam (~50–85 total, ~11–19 in this domain), expect 3–5 from this objective — we provide 38 practice questions to prepare you well beyond it. (estimate)
38questions here
8free pages
16concepts
22%of the exam
Questions 11–15
- 11
A company runs a nightly Spark job on Amazon EMR to process raw data in S3 and write results to a partitioned table. The job completes successfully but takes longer than expected. The data volume has grown 10x over the past month. The team wants to reduce runtime without changing the Spark code. Which approach is most effective?
Select an answer first - 12
When integrating an external data API into a pipeline, what is the typical method to authenticate requests?
Select an answer first - 13
Which practice is important when updating a data API to ensure existing consumers are not broken?
Select an answer first - 14
Which of the following is a common cause of DAG failures in Amazon MWAA?
Select an answer first - 15
Which technique can significantly improve query performance in Amazon Athena by reducing the amount of data scanned?
Select an answer first
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