Quick Answer
The answer is to review the buildspec.yml file for syntax errors. When a CodePipeline build fails with a 'BUILD FAILED' error, it directly points to an issue within the CodeBuild phase, where the buildspec.yml file defines every command and configuration for the build process. Checking this file first is logical because a simple syntax mistake, like a missing colon or incorrect indentation, can halt the entire pipeline. On the AWS Certified Developer Associate DVA-C02 exam, this question tests your understanding of the build stage's dependency on the buildspec file, often setting traps where candidates jump to CloudTrail logs or Elastic Beanstalk runtime logs instead. A common memory tip is to remember that "build" errors always start with the "buildspec" — if the build fails, look at the build instructions before anything else.
This DVA-C02 practice question tests your understanding of deployment. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company uses CodePipeline to deploy a web application to Elastic Beanstalk. The deployment fails at the Build stage with an error 'BUILD FAILED'. Which step should the developer take first to troubleshoot?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "first"
Why it matters: Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
Review the buildspec.yml file for syntax errors
The buildspec.yml defines build commands; errors there cause build failure.
Verify the CodeDeploy application revision
Why wrong: CodeDeploy is for deployment, not build.
Examine the Elastic Beanstalk environment logs
Why wrong: Environment logs show runtime errors, not build errors.
Check AWS CloudTrail for API calls
Why wrong: CloudTrail does not show build errors.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Review the buildspec.yml file for syntax errors
The error 'BUILD FAILED' indicates an issue during the build phase. The buildspec.yml file defines the build commands. Checking it is the first logical step. Option A is correct because the buildspec.yml is the configuration for CodeBuild. Option B (CloudTrail) is for API auditing, not build errors. Option C (CodeDeploy) is for deployment, not build. Option D (Elastic Beanstalk logs) are for runtime, not build.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Review the buildspec.yml file for syntax errors
Why this is correct
The buildspec.yml defines build commands; errors there cause build failure.
Clue confirmation
The clue word "first" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
Verify the CodeDeploy application revision
Why it's wrong here
CodeDeploy is for deployment, not build.
Examine the Elastic Beanstalk environment logs
Why it's wrong here
Environment logs show runtime errors, not build errors.
Check AWS CloudTrail for API calls
Why it's wrong here
CloudTrail does not show build errors.
Common exam traps
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Trap categories for this question
Command / output trap
Environment logs show runtime errors, not build errors.
Detailed technical explanation
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
Identify which DVA-C02 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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FAQ
Deployment — This question tests Deployment — Read the scenario before looking for a memorised answer..
The correct answer is: Review the buildspec.yml file for syntax errors — The error 'BUILD FAILED' indicates an issue during the build phase. The buildspec.yml file defines the build commands. Checking it is the first logical step. Option A is correct because the buildspec.yml is the configuration for CodeBuild. Option B (CloudTrail) is for API auditing, not build errors. Option C (CodeDeploy) is for deployment, not build. Option D (Elastic Beanstalk logs) are for runtime, not build.
Identify which DVA-C02 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Yes — watch for: "first". Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 20, 2026
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