AWS Certified Data Engineer – Associate credential artwork

AWS Certified Data Engineer – Associate (DEA-C01) Practice Tests

Validates knowledge of data ingestion, transformation, store management, pipeline operations, and data security and governance using AWS services.

Data Engineer Associate questions describe a pipeline requirement and ask which AWS services meet it at the right cost, latency and effort, in 65 questions over 130 minutes. We compared the main options on exam-style wording, explanations and price.

Most people should start with AWS's free 20-question set and Tutorials Dojo's free sampler, use Tutorials Dojo as their main bank, then take AWS's Official Practice Exam as a late timed check.

Free first look

Official Practice Question Set (DEA-C01)

Twenty questions written by AWS, with feedback on every answer option and links to study material. It takes about 40 minutes and shows the exam's wording and question style.

Great fit if you want to see AWS's own question style before paying for anything.

Poor fit if you need a full-length timed run; use the Official Practice Exam or Tutorials Dojo.

Free explained sample

Free AWS Certified Data Engineer Associate Practice Exam Sampler

Twenty DEA-C01 questions, split into a timed set and a review set, with Tutorials Dojo's answer explanations. It shows the bank's style before you pay for the full version.

Great fit if you want a free look at Tutorials Dojo's explanations before buying.

Poor fit if you need volume; the paid Tutorials Dojo bank has far more questions.

Detailed explanations

AWS Certified Data Engineer Associate DEA-C01 Practice Exam 2026

Four timed sets, plus review, section-based and randomised modes, with a reference link in every explanation. Candidates call the questions tough and scenario-heavy, and the bank is smaller than for other Associate exams.

Great fit if you want the most widely recommended bank and learn best from detailed explanations.

Poor fit if you need more than four full sets; add Maarek's exams or the Official Practice Exam.

Official timed rehearsal

Official Practice Exam (DEA-C01)

One 65-question, 130-minute exam with the real exam's scaled scoring and feedback on every answer option. Retakes show the same questions in a different order.

Great fit if you want a timed dress rehearsal in the last week or two.

Poor fit if you need many questions to drill; it is a single exam, so pair it with Tutorials Dojo.

Course companion

Practice Exams | AWS Certified Data Engineer - Associate

Four timed 65-question exams with explanations for every answer, written to go with Maarek's Data Engineer course. Candidates often use them as a second bank beside Tutorials Dojo.

Great fit if you already study with Maarek's course or want more full-length sets after Tutorials Dojo.

Poor fit if you want only one bank; Tutorials Dojo costs less and is the more common first choice.

Short timed sets

AWS Certified Data Engineer Associate Practice Exams DEA-C01

Six 25-question exams across all four DEA-C01 domains, with an explanation for each answer. At 150 questions it is the smallest bank here, so it adds variety rather than volume.

Great fit if you want extra scenario questions after Tutorials Dojo, in short sittings.

Poor fit if you need volume; use Tutorials Dojo or Maarek's 260 questions.

What to look for in a AWS Certified Data Engineer – Associate practice test

  • Match the exam code and guide version. DEA-C01 is the current exam. AWS published guide v1.1 on 12 December 2025, adding LLM data processing, Apache Iceberg, vector indexes and SageMaker Catalog. Tutorials Dojo, Maarek and Neal Davis list 2026 updates, so prefer those over older sets.
  • Look for service-choice trade-offs. The exam has 65 questions (50 scored) in 130 minutes, multiple choice or multiple response, and expects you to compare services on cost, performance and effort, such as Athena against Redshift or Kinesis against MSK. Pick sets that explain why the other options lose.
  • Expect small banks. Tutorials Dojo has four timed sets, Maarek's has 260 questions and Neal Davis's has 150, because the scope is narrower than SAA. Combine two sources and keep the Official Practice Exam for last.
  • Use AWS's official sets for wording. AWS's 20-question set and Official Practice Exam use the exam's own style and scaled scoring. Candidates call the official exam the closest match, while one called Skill Builder harder and vaguer.
  • Read scores by domain. The four domains weigh 34% (ingestion and transformation), 26% (data stores), 22% (operations) and 18% (security and governance). Practice reports that break scores down by domain show where to focus.
  • Skip sites selling "real exam questions." Sites promising actual DEA-C01 questions or a guaranteed pass are selling leaked or copied items. AWS's certification agreement bans using leaked exam content and lets AWS revoke some or all of your AWS certifications. A real practice test explains why each answer is right; a dump only lists answers.

How to use AWS Certified Data Engineer – Associate practice tests

  • Take the free sets first. Do AWS's 20 questions and Tutorials Dojo's sampler before you study heavily, and read the explanations for correct answers too.
  • Build one pipeline. Candidates say hands-on work with Glue, Redshift, Athena and S3 lifecycle rules matters, because questions test small service details. A single ingest, transform and query project covers most of them.
  • Learn from review mode. Use Tutorials Dojo's review mode to see answers as you go, then retake in timed mode. Candidates report low first scores that rose after reading every explanation.
  • Keep a trade-off table. Write down when to use each pair you confuse, for example Step Functions or MWAA or Glue workflows, and Kinesis Data Streams or Firehose, then add each miss to it.
  • Finish with the Official Practice Exam. Take it in the last week or two under real conditions, 65 questions in 130 minutes, then spend the remaining days on the domains it flags.

AWS: DEA-C01 exam guide ↗AWS: DEA-C01 guide revisions ↗Reddit: Dojo questions vs the real DEA exam ↗Reddit: which DEA-C01 practice exams to use ↗Reddit: DEA-C01 prep with Dojo and Skill Builder ↗

AWS Certified Data Engineer – Associate practice test FAQ

Are there free AWS Data Engineer Associate practice tests?

Yes. AWS offers a free 20-question Official Practice Question Set for DEA-C01 on Skill Builder, and Tutorials Dojo has a free 20-question sampler. Both need a free account.

Are DEA-C01 practice tests harder than the real exam?

Reports differ. Some candidates found Tutorials Dojo's questions tougher and wordier than the real exam, while others found them similar in wording. The real exam is mostly multiple choice and multiple response with no ordering or matching.

How many practice tests should I take?

AWS sets no number. Candidates in Reddit threads usually use Tutorials Dojo, sometimes with a second Udemy set, plus AWS's Official Practice Exam, and review every miss.

What question types are on DEA-C01?

Multiple choice with one correct answer and multiple response with two or more correct answers. Unanswered questions score as incorrect, and there is no penalty for guessing.