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Can You Retake DEA-C01 After Failing? Retake Rules Explained (2026)

CT
Certsqill Team
Certification Expert
May 9, 2026
15 min read

Can You Retake DEA-C01 After Failing? Retake Rules Explained (2026)

If you just received your DEA-C01 score report showing a failing grade, you’re probably wondering: what happens if I fail DEA-C01, and when can I try again? The good news is that failing the AWS Certified Data Engineer - Associate exam isn’t the end of the road. Amazon Web Services allows retakes, but there are specific rules and waiting periods you need to understand.

Direct answer

Yes, you can retake the DEA-C01 exam after failing. Amazon Web Services requires candidates to wait 14 days before scheduling a new attempt for most certification exams, including DEA-C01. You’ll need to pay the full exam fee again ($150 USD as of 2026) and can attempt the exam multiple times until you pass. However, check Amazon Web Services’s official exam page for the most current retake policy as rules can change.

The key is using that mandatory waiting period wisely. Two weeks might seem short, but it’s actually enough time to identify your weak areas from the score report and strengthen them significantly if you focus on the right study approach.

DEA-C01 retake rules: the official policy

Amazon Web Services maintains consistent retake policies across most of their certification exams, and DEA-C01 follows the standard framework. Here’s what you need to know about the DEA-C01 retake policy:

Waiting Period: You must wait 14 days from your failed attempt before you can schedule another exam. This isn’t 14 business days – it’s 14 calendar days. If you took your exam on a Monday and failed, you can schedule your retake starting the Monday two weeks later.

No Automatic Scheduling: Unlike some certification programs that automatically offer retake dates, you need to manually schedule your DEA-C01 retake through the AWS certification portal or your testing provider (Pearson VUE).

Score Report Timing: Your detailed score report typically becomes available within a few business days of your exam attempt. This report breaks down your performance across the four DEA-C01 domains, which is crucial information for planning your retake strategy.

Policy Updates: Amazon Web Services occasionally updates their certification policies. The 14-day waiting period has been standard for years, but other aspects like pricing or exam format can change. Always verify current rules on the official AWS certification website before making assumptions.

The DEA-C01 retake policy is designed to give candidates enough time to address knowledge gaps while preventing rapid-fire attempts that waste both time and money.

How long do you have to wait before retaking DEA-C01?

The mandatory waiting period for DEA-C01 retakes is 14 calendar days. This means exactly two weeks from the date of your failed attempt before you can sit for the exam again.

Here’s how the timing works in practice:

Day 0: You take and fail the DEA-C01 exam
Days 1-13: Waiting period (you cannot schedule a retake)
Day 14: You can schedule and potentially take your retake

The waiting period starts immediately after your failed exam, not when you receive your score report. So even if it takes a few days to get your detailed results, the 14-day clock is already ticking.

Planning Around the Waiting Period: Many candidates find 14 days feels either too short or too long. If you were close to passing (maybe 650-699 on a 1000-point scale), two weeks of focused study might be perfect. If you scored significantly lower, you might wish for more time, but you can always wait longer than 14 days before scheduling your retake.

Scheduling Flexibility: Once the 14-day period expires, you have complete flexibility in when to schedule your retake. There’s no upper limit on how long you can wait, though AWS certifications don’t expire once earned, so there’s no rush beyond your personal timeline.

The key insight here is that 14 days is actually a substantial amount of focused study time if you use it strategically rather than trying to re-study everything from scratch.

How much does a DEA-C01 retake cost?

A DEA-C01 retake costs the same as your initial attempt: $150 USD as of 2026. There are no discounts for retakes, and you’ll pay the full exam fee each time you attempt the certification.

No Bundled Retake Options: Unlike some certification programs that offer retake vouchers or bundled attempts, Amazon Web Services sells each DEA-C01 attempt individually. This means if you fail twice, you’ve spent $300, and three attempts would cost $450.

Payment Methods: You can pay for retakes using the same methods as your original exam – credit card, AWS credits (in some regions), or corporate purchasing programs if your employer covers certification costs.

Regional Pricing: The $150 fee applies to most regions, but some countries may have different pricing due to local economic factors or currency considerations. Check the AWS certification portal for pricing in your specific location.

No Partial Refunds: If you pass on your retake, there’s obviously no refund for your first attempt. AWS doesn’t offer any compensation for failed attempts – the full fee applies regardless of your score.

Cost-Benefit Consideration: At $150 per attempt, it’s worth investing time in proper preparation rather than rushing into retakes. The cost of thorough study materials is often less than the cost of multiple exam attempts.

This pricing structure incentivizes candidates to prepare thoroughly rather than relying on multiple attempts to eventually pass through familiarity with the questions.

How many times can you retake DEA-C01?

There is no official limit on the number of times you can retake the DEA-C01 exam. You can attempt it as many times as necessary until you pass, as long as you follow the 14-day waiting period between failed attempts.

Unlimited Attempts: This policy differs from some other certification programs that impose lifetime limits. With DEA-C01, persistence is technically unlimited, though practically expensive.

Each Attempt is Independent: Every DEA-C01 attempt is treated as a separate exam. Your score from attempt #1 doesn’t influence attempt #2, and there’s no cumulative scoring or partial credit carried forward.

Practical Limitations: While there’s no official limit, practical factors create natural boundaries:

  • Cost: At $150 per attempt, multiple failures become expensive quickly
  • Time: The 14-day waiting periods add up
  • Motivation: Repeated failures can be discouraging and may indicate the need for a different approach

Success Patterns: Most successful candidates pass within their first three attempts. If you’re on attempt #4 or higher, it’s worth seriously reconsidering your study approach rather than continuing with the same methods.

No Penalty for Multiple Attempts: Your certification looks identical regardless of whether you passed on attempt #1 or attempt #5. Employers and colleagues can’t tell how many tries it took, and AWS doesn’t track or report this information.

The unlimited retake policy means persistence can eventually pay off, but smart preparation is far more efficient than brute force attempts.

What changes between your first and second attempt

The DEA-C01 exam content doesn’t fundamentally change between your attempts, but several important factors do shift that can work in your favor.

Your Knowledge Base: The most obvious change is your improved understanding of the exam format and content areas. Even a failed first attempt teaches you valuable lessons about question styles, time management, and which DEA-C01 domains need more attention.

Score Report Intelligence: Your detailed score report from the first attempt provides crucial data. It breaks down your performance across the four domains:

  • Data Ingestion and Transformation (34%)
  • Data Store Management (26%)
  • Data Operations and Support (22%)
  • Data Security and Governance (18%)

This breakdown tells you exactly where to focus your retake preparation.

Question Pool: AWS maintains large question pools for their exams, so while you might see some repeat questions on your retake, many will be new. Don’t count on memorizing specific questions from your first attempt – focus on understanding the underlying concepts.

Time Management: First-time candidates often struggle with pacing. On your retake, you’ll have a much better sense of how long to spend on different question types and when to move on from difficult questions.

Reduced Test Anxiety: The unknown factor that creates anxiety on first attempts is largely eliminated. You know the testing environment, the question format, and the overall experience, which typically leads to better performance even with the same knowledge level.

Strategic Question Approach: After your first attempt, you understand how AWS words questions and what they’re really asking for. This pattern recognition can significantly improve your accuracy on the retake.

The combination of targeted preparation based on your score report and reduced anxiety often makes the difference between a first-attempt failure and second-attempt success.

How to use the waiting period strategically

The 14-day waiting period isn’t just a bureaucratic requirement – it’s an opportunity to transform your weak areas into strengths. Here’s how to maximize those two weeks for DEA-C01 specifically:

Days 1-3: Analysis and Planning
Don’t dive straight back into studying. Start by analyzing your score report to understand exactly which of the four DEA-C01 domains caused your failure. If you scored poorly in Data Ingestion and Transformation (34% of the exam), that’s your primary focus area. If Data Security and Governance (18% of the exam) was your weakness, you need a different approach since it’s a smaller but still crucial domain.

Create a specific study plan based on your score breakdown rather than generic review.

Days 4-10: Intensive Domain Focus
Concentrate on your lowest-scoring domain first. For DEA-C01, this often means:

Data Ingestion and Transformation struggles: Focus on AWS Glue job optimization, Apache Spark transformations, data cataloging, and ETL pipeline design patterns. Practice hands-on labs with AWS Glue Studio and understand the differences between batch and streaming ingestion patterns.

Data Store Management issues: Deep dive into Amazon S3 storage classes, data lake architecture patterns, Amazon Redshift optimization techniques, and when to use different AWS database services for analytics workloads.

Data Operations and Support gaps: Master CloudWatch monitoring for data pipelines, troubleshooting failed ETL jobs, cost optimization strategies, and operational best practices for data engineering workflows.

Data Security and Governance weaknesses: Focus on IAM policies for data access, encryption at rest and in transit, AWS Lake Formation permissions, and compliance frameworks relevant to data engineering.

Days 11-14: Integration and Practice Tests
Spend your final days on full-length practice exams and reviewing cross-domain scenarios. DEA-C01 questions often blend multiple domains, so practice questions that combine data ingestion with security requirements or data operations with cost optimization.

Hands-On Practice: If possible, get hands-on experience with AWS services during this period. The DEA-C01 exam includes scenario

-based questions that test your practical understanding, not just theoretical knowledge.

Use this focused approach rather than trying to review all DEA-C01 content again. The waiting period is about surgical improvement, not comprehensive review.

Common mistakes that lead to DEA-C01 retakes

Understanding why candidates fail DEA-C01 the first time can help you avoid the same pitfalls on your retake. After analyzing hundreds of score reports and candidate feedback, these patterns emerge consistently:

Underestimating Hands-On AWS Experience: DEA-C01 isn’t just about knowing AWS service names – it tests practical implementation knowledge. Candidates often fail because they studied theory but never built actual data pipelines. Questions ask about specific Glue job parameters, S3 event triggers for Lambda functions, or Redshift COPY command optimization. You need to understand how these services behave in real scenarios, not just conceptual overviews.

Ignoring the Business Context: Many DEA-C01 questions embed technical requirements within business scenarios. A question might describe a retail company needing real-time inventory updates, then ask you to design the optimal data ingestion pattern. Candidates who focus only on technical details often miss the business requirements that drive the correct answer. Cost optimization, compliance requirements, and operational constraints are as important as technical capabilities.

Weak Understanding of Data Pipeline Orchestration: AWS Step Functions, EventBridge, and various scheduling mechanisms appear frequently in DEA-C01 questions. Candidates often understand individual services but struggle with questions about coordinating multiple services in complex workflows. Know when to use Step Functions versus CloudWatch Events, how to handle pipeline failures and retries, and how different orchestration patterns affect cost and reliability.

Inadequate Security and Governance Preparation: The Data Security and Governance domain (18% of the exam) is often treated as secondary, but questions in this area can be tricky. IAM policies for cross-service access, encryption key management for data lakes, and Lake Formation permission models require precise understanding. Generic security knowledge isn’t enough – you need specific expertise in data-related security patterns.

Time Management During Complex Scenarios: DEA-C01 includes lengthy scenario questions with multiple requirements. Candidates often run out of time because they spend too long on complex questions early in the exam. Practice identifying the key requirements quickly and eliminating obviously wrong answers before diving deep into technical analysis.

Misunderstanding Streaming vs. Batch Processing: Questions frequently test your understanding of when to use Amazon Kinesis, AWS Glue streaming ETL, or traditional batch processing. Candidates often choose streaming solutions for scenarios where batch processing is more appropriate, or vice versa. Understand the cost, latency, and complexity tradeoffs between different processing patterns.

Practice realistic DEA-C01 scenario questions on Certsqill — with AI Tutor explanations that show exactly why each answer is right or wrong.

Emotional and psychological aspects of retaking DEA-C01

Failing DEA-C01 creates more than just a scheduling and cost problem – it can significantly impact your confidence and study motivation. Understanding and managing these psychological factors is crucial for retake success.

Dealing with Professional Disappointment: Many DEA-C01 candidates are experienced engineers who aren’t used to failing technical assessments. The disappointment can be particularly acute if colleagues or employers were expecting you to pass. Remember that DEA-C01 has a substantial failure rate even among qualified professionals – this exam tests specific AWS implementation knowledge, not your general engineering competence.

Avoiding the “Rush Back” Mentality: After failing, many candidates want to immediately schedule their retake to “get it over with” or prove the first attempt was a fluke. This emotional response usually leads to inadequate preparation and a second failure. Use the mandatory 14-day waiting period as intended – for genuine skill improvement, not just cooling off.

Managing Study Fatigue: If you invested heavily in preparing for your first attempt, the thought of studying again can feel overwhelming. This is where the targeted approach becomes crucial. You’re not starting from zero – you’re addressing specific knowledge gaps identified by your score report. This focused preparation typically requires less total study time than your initial preparation.

Reframing the Learning Process: Instead of viewing your failed attempt as wasted time and money, reframe it as expensive but valuable intelligence gathering. Your first attempt taught you exactly what AWS considers important for data engineering roles and highlighted your specific knowledge gaps. This information would be impossible to get any other way.

Building Retake Confidence: Successful retake candidates often report that their second attempt felt different from the start. They recognized question patterns, managed time better, and felt more confident in their AWS-specific knowledge. This confidence boost often makes the difference in borderline cases where you might have second-guessed correct answers on your first attempt.

Setting Realistic Expectations: Don’t assume your retake will be dramatically easier. While your familiarity with the exam format helps, AWS maintains consistent difficulty levels across attempts. Plan for the same level of challenge but with better preparation and reduced anxiety.

The psychological preparation for your DEA-C01 retake is as important as the technical preparation. Address both aspects to maximize your chances of success.

FAQ

Q: Can I take DEA-C01 at a different testing center for my retake?

A: Yes, you can take your DEA-C01 retake at any Pearson VUE testing center or as an online proctored exam, regardless of where you took your first attempt. You’re not locked into the same location or testing format. Some candidates find that switching to online proctoring for their retake eliminates travel stress and provides a more comfortable testing environment.

Q: Will I see the same questions on my DEA-C01 retake?

A: You may see some repeat questions, but AWS maintains large question pools and rotates content regularly. Don’t count on memorizing specific questions from your first attempt – you’ll likely encounter many new questions that test the same concepts in different ways. Focus on understanding the underlying AWS services and data engineering patterns rather than trying to memorize specific question wording.

Q: If I barely failed DEA-C01 with a score in the high 600s, should I wait longer than 14 days before retaking?

A: Not necessarily. If you scored in the 650-699 range, you were close to the 700 passing score and likely have solid foundational knowledge. Two weeks of focused study on your lowest-scoring domains can often bridge that gap. However, if you scored below 600, consider waiting 3-4 weeks to allow for more comprehensive preparation of weak areas.

Q: Does AWS track how many times I’ve attempted DEA-C01, and will employers know?

A: No, AWS does not track or report the number of attempts on your certification record. Your DEA-C01 certificate looks identical whether you passed on your first attempt or your fifth attempt. Employers cannot see your attempt history, and AWS doesn’t include this information in certification verification systems. Only you know your complete attempt history.

Q: Can I use the same study materials for my DEA-C01 retake, or should I find different resources?

A: If your study materials adequately covered the domains where you scored well, keep using them for those areas. However, if you consistently scored poorly in specific domains, your original materials may have been inadequate for those topics. Look for additional resources that provide deeper coverage of your weak areas, especially hands-on labs and practice scenarios that match the exam’s practical focus.