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Free AWS Certified Data Engineer - Associate DEA-C01: AWS Certified Data Engineer - Associate DEA-C01 Exam Questions and Answers
Last updated: April 1, 2025
Examtopics AWS Certified Data Engineer - Associate DEA-C01: AWS Certified Data Engineer - Associate DEA-C01 Prepaway Real Exam Questions and dumps free download
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1312-AWS Certified Data Engineer - Associate DEA-C01: AWS Certified Data Engineer - Associate DEA-C01
#Question
To optimize querying performance in a large Amazon Redshift cluster, what should you do?
A.
Enable Auto Scaling
B.
Use DynamoDB
C.
Increase Node Count
D.
Use Compression Encoding
Correct Answer:
D
Using Compression Encoding in Amazon Redshift reduces the amount of data read during queries, improving performance and efficiency significantly.
#Question
A company needs to prepare sales data from multiple regions for analysis while ensuring data quality. Which service is optimal for this task?
A.
AWS Lambda
B.
Amazon Athena
C.
Amazon S3
D.
AWS Glue
Correct Answer:
D
AWS Glue provides ETL capabilities that not only prepare and transform data but also includes features to ensure data quality before analysis.
AWS Certified Data Engineer – Associate DEA-C01: AWS Certified Data Engineer – Associate DEA-C01
Discussing...
A company needs to prepare sales data from multiple regions for analysis while ensuring data quality. Which service is optimal for this task?
#Question
You must establish a data validation checklist for an ETL process to ensure data accuracy. Which AWS service would assist?
A.
Amazon QuickSight
B.
Amazon RDS
C.
AWS Snowball
D.
AWS Glue
Correct Answer:
D
AWS Glue includes data quality features that help validate and clean data during the ETL process to maintain accuracy and reliability.
#Question
A financial company requires data integration from multiple services securely. Which service would you use?
A.
AWS Lambda
B.
Amazon Aurora
C.
Amazon S3
D.
AWS Glue
Correct Answer:
D
AWS Glue provides a secure platform for integrating data from multiple sources, supporting transformation and orchestration to fulfill data compliance and security requirements.
#Question
A client wants to retain access to previous S3 object versions. What must they enable?
A.
Lifecycle Policy
B.
Cross-Region Replication
C.
Object Lock
D.
Versioning
Correct Answer:
D
Enabling versioning on an S3 bucket retains previous versions of objects, allowing retrieval of any needed version in the future.
#Question
To facilitate data archival in a cost-effective way, what should be used?
A.
Amazon Redshift
B.
Amazon RDS
C.
AWS Lambda
D.
Amazon S3 Glacier
Correct Answer:
D
Amazon S3 Glacier is designed for long-term data archival, providing cost-effective solutions for storing rarely accessed data over extended periods.
#Question
A data scientist needs to prepare data for machine learning. Which AWS service can automate this process?
A.
Amazon RDS
B.
AWS Glue
C.
Amazon S3
D.
Amazon SageMaker
Correct Answer:
B
AWS Glue automates the preparation and transformation of data required for machine learning, making it easier for data scientists to work with clean and organized datasets.
1312-AWS Certified Data Engineer - Associate DEA-C01: AWS Certified Data Engineer - Associate DEA-C01
AWS Certified Data Engineer – Associate DEA-C01: AWS Certified Data Engineer – Associate DEA-C01
Discussing...
A company needs to prepare sales data from multiple regions for analysis while ensuring data quality. Which service is optimal for this task?
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