AWS Certified Data Engineer - Associate (DEA-C01) Pass Rate 2026
Complete analysis of AWS Certified Data Engineer - Associate (DEA-C01) exam difficulty, pass rates, and strategies to pass on your first attempt.
Pass Rate
Difficulty Verdict
Challenging
Recommended Study Time
8-12 weeks
Typical Attempts
1-2 attempts average
With only Not published of candidates passing, AWS Certified Data Engineer - Associate (DEA-C01) is a demanding exam even for experienced professionals. The majority who fail cite insufficient preparation depth or gaps in specific domains. Amazon Web Services designs this exam to validate real competency, not just textbook knowledge. At $150 per attempt, failing is costly. If you fail, you'll wait 14 days before retaking. The certification is valid for 3 years, so investing in solid prep pays off long-term.
Top Reasons Candidates Fail AWS Certified Data Engineer - Associate (DEA-C01):
Do This for AWS Certified Data Engineer - Associate (DEA-C01)
- Domain 1, Data Ingestion and Transformation, is 34 percent of the scored content and deserves a third of your study time
- Only 50 of the 65 questions are scored; the other 15 are unscored trial items you cannot identify
- Learn Glue against EMR against Redshift against Lambda on cost, and expect the cheapest-that-works answer to win
- Work exam guide version 1.1, published 12 December 2025, which added Apache Iceberg, S3 Tables, vector index types, and SageMaker Unified Studio
Avoid This
- Relying on brain dumps — cloud providers update exams frequently
- Studying only theory without spinning up real environments
- Ignoring the official exam guide and objective weightings
- Cramming a week before instead of steady hands-on practice
Ready to Beat the Odds?
Get our complete AWS Certified Data Engineer - Associate (DEA-C01) study guide with practice questions.