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Cloud Practice Questions

AWS Data Engineer Associate Practice Questions

AWS Certified Data Engineer - Associate (DEA-C01) — Practice with free sample questions covering data ingestion and transformation, data store management, data operations and support, and data security and governance. Each question includes a detailed explanation so you understand the reasoning, not just the answer.

65
Total Questions
130 minutes
Time Limit
720 out of 1000
Passing Score
$150
Registration Fee

Free Sample Questions

Here are 5 free sample questions from our full bank of 500+ AWS Data Engineer Associatepractice questions. Try them out below — click "Show Answer" to reveal the correct response and explanation.

1

A data engineering team needs to ingest clickstream data from a mobile app into a data lake in near real time, with the ability to transform and enrich records before they land in Amazon S3. Which combination of services BEST meets this requirement with the least operational overhead?

AAmazon SQS to buffer events, then a nightly AWS Glue job to write to S3
BAWS Database Migration Service (DMS) with change data capture (CDC)
CAmazon Kinesis Data Streams paired with Amazon Data Firehose using a Lambda transformation
DAmazon EC2 instances polling the app's API and writing directly to S3
2

A company stores petabytes of semi-structured JSON logs in Amazon S3 and runs ad-hoc SQL analytics against them a few times per week. The team wants to minimize both storage cost and query cost, and query performance is not a top priority. Which approach is MOST cost-effective?

ALoad all the JSON data into an Amazon Redshift provisioned cluster running continuously
BKeep the data in S3, use AWS Glue to catalog it, and query it with Amazon Athena on demand
CReplicate the data into Amazon DynamoDB with on-demand capacity
DMove the data to Amazon RDS for PostgreSQL and query with standard SQL
3

An AWS Glue ETL job that normally finishes in 20 minutes has been running for over 3 hours, and downstream dashboards are showing stale data. A data engineer needs to identify the root cause quickly without losing any progress already made. Which action should they take FIRST?

AReview the job run details and CloudWatch Logs for that specific run to locate where it is stalled or throwing errors
BDelete the job and recreate it from scratch with default settings
CRestore the source table from a backup taken before the job started
DIncrease the number of DPUs and immediately rerun the job without investigating
4

A financial services company must ensure that personally identifiable information (PII) in an S3 data lake is automatically discovered and that access to sensitive columns in Amazon Redshift is restricted to specific roles without duplicating the underlying data. Which combination of AWS services satisfies both requirements?

AAmazon Macie to discover PII in S3, and Redshift dynamic data masking / column-level grants to restrict access
BAWS Shield to discover PII, and IAM database authentication alone to restrict access
CAmazon Inspector to discover PII, and S3 bucket policies to restrict column-level access
DAWS Trusted Advisor to discover PII, and VPC security groups to restrict column access
5

A retail company ingests raw sales data hourly into a raw S3 zone, transforms it into a curated Parquet layer with AWS Glue, and loads aggregated results into Amazon Redshift for BI dashboards. The team wants to orchestrate this multi-step pipeline, retry failed steps automatically, and get a visual view of pipeline state. Which service is the BEST fit for orchestration?

AAmazon EventBridge scheduled rules calling each step independently
BAWS Step Functions coordinating the Glue jobs and Redshift load as a state machine
CA single long-running AWS Lambda function that calls each step in sequence
DAmazon SNS topics that notify each service when the previous one finishes

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About the AWS Data Engineer Associate

Format & Structure

Total Questions
65
Time Limit
130 minutes
Format
Multiple choice and multiple response

Scoring & Cost

Passing Score
720 out of 1000
Registration Fee
$150

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Frequently Asked Questions

What is the AWS Certified Data Engineer - Associate exam?

The AWS Certified Data Engineer - Associate (DEA-C01) validates your ability to build, secure, and maintain data pipelines and data stores on AWS. It covers data ingestion and transformation, data store management, data operations and support, and data security and governance. AWS introduced this certification in 2024 to fill a gap between the Cloud Practitioner-level exams and the more specialized analytics tracks.

How many questions are on the DEA-C01 exam, and how much time do I get?

You'll face 65 questions in 130 minutes, which is standard for an AWS Associate-level exam. Some of those questions are unscored pretest items that AWS uses to evaluate future exam content, though you won't know which ones. Pacing yourself at roughly two minutes per question leaves a comfortable buffer for review.

What score do I need to pass the AWS Data Engineer Associate exam?

AWS scores this exam on a scale of 100 to 1000, and you need at least 720 to pass. That scaled score accounts for slight differences in difficulty across exam forms, so raw percentage correct isn't a reliable predictor on its own. AWS reports your result as pass/fail along with a performance breakdown by domain.

How much does the AWS Data Engineer Associate exam cost?

Registration for the DEA-C01 exam costs $150 USD. AWS occasionally offers a 50% discount voucher after you pass another AWS certification, so it's worth checking your AWS Certification account before you pay full price. Retake attempts are billed at the same $150 rate.

What topics should I focus on when studying for DEA-C01?

The exam is organized around four domains: data ingestion and transformation, data store management, data operations and support, and data security and governance. Data ingestion and transformation carries the heaviest weight, so get comfortable with services like Kinesis, AWS Glue, and Data Firehose. Don't skip governance either -- questions on Lake Formation permissions and encryption trip up a lot of first-time candidates.

Do I need hands-on AWS experience before taking this exam?

AWS recommends 2-3 years of data engineering experience and at least 1-2 years working hands-on with AWS services before attempting this certification. That said, plenty of people pass with less real-world time if they've built practice pipelines in a personal AWS account. Reading documentation alone tends to leave gaps that only show up once you're staring at a tricky scenario question.

How is this different from the AWS Solutions Architect Associate exam?

The Solutions Architect Associate exam is broad, covering compute, networking, storage, and architecture decisions across nearly every AWS service category. DEA-C01 goes deep on one slice of that world: building and operating data pipelines, choosing the right data store, and securing data at rest and in transit. If your day-to-day work is closer to ETL, streaming, and analytics than general infrastructure design, this exam maps much more directly to your job.

How long should I study before taking the DEA-C01 exam?

Most candidates with some AWS background spend 4-8 weeks preparing, depending on how much hands-on data engineering work they've already done. If you're newer to services like Glue, Kinesis, and Lake Formation, lean toward the longer end and build a few small pipelines yourself rather than just reading whitepapers. Practice questions are useful throughout, but they work best in the final couple of weeks once you've covered the core concepts.

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