- A
The CodeDeploy application does not have the correct service role.
Why wrong: Incorrect: The error is about missing artifact, not permissions.
- B
The CodeBuild project does not have permissions to upload to the S3 bucket.
Why wrong: Incorrect: CodeBuild uploads the artifact, but the error is in deploy stage.
- C
The pipeline does not have an OutputArtifact configured for the build stage, so the artifact is not passed to the deploy stage.
Correct: Artifacts must be defined in the pipeline configuration.
- D
The S3 bucket policy does not allow CodePipeline to access the artifact.
Why wrong: Incorrect: CodePipeline uses a service role, not bucket policy.
Question 1,489 of 1,616
AWS CodePipeline NoSuchKey Error
This DVA-C02 practice question tests your understanding of development with aws services. 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 developer is using AWS CodePipeline to automate a build and deploy process. The pipeline has a build stage that uses AWS CodeBuild and a deploy stage that uses AWS CodeDeploy. The build stage produces a build artifact that is stored in Amazon S3. The deploy stage fails with 'NoSuchKey' error. What is the MOST likely cause?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"most likely"Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The pipeline does not have an OutputArtifact configured for the build stage, so the artifact is not passed to the deploy stage.
The 'NoSuchKey' error indicates that the deploy stage cannot find the expected artifact in Amazon S3. This most commonly occurs when the build stage does not have an OutputArtifact configured in the pipeline definition, so the artifact is not passed to the deploy stage. Without the OutputArtifact, CodePipeline does not store the build output in the pipeline's artifact store, and CodeDeploy receives no artifact reference to download.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The CodeDeploy application does not have the correct service role.
Why it's wrong here
Incorrect: The error is about missing artifact, not permissions.
- ✗
The CodeBuild project does not have permissions to upload to the S3 bucket.
Why it's wrong here
Incorrect: CodeBuild uploads the artifact, but the error is in deploy stage.
- ✓
The pipeline does not have an OutputArtifact configured for the build stage, so the artifact is not passed to the deploy stage.
Why this is correct
Correct: Artifacts must be defined in the pipeline configuration.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
The S3 bucket policy does not allow CodePipeline to access the artifact.
Why it's wrong here
Incorrect: CodePipeline uses a service role, not bucket policy.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse permission errors (AccessDenied) with missing artifact errors (NoSuchKey), or incorrectly assume the issue is with the S3 bucket policy or service roles rather than the pipeline's artifact configuration.
Detailed technical explanation
How to think about this question
In CodePipeline, artifacts are passed between stages via the pipeline's artifact store (an S3 bucket managed by CodePipeline). The OutputArtifacts field in the build stage definition tells CodePipeline which files to zip and store in that bucket under a specific key. If this field is omitted, no artifact is created, and downstream stages like CodeDeploy receive an empty artifact reference, leading to a 'NoSuchKey' error when CodeDeploy attempts to download the artifact from S3. This is a common misconfiguration when using the visual editor or YAML pipeline definition.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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FAQ
Questions learners often ask
What does this DVA-C02 question test?
Development with AWS Services — This question tests Development with AWS Services — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The pipeline does not have an OutputArtifact configured for the build stage, so the artifact is not passed to the deploy stage. — The 'NoSuchKey' error indicates that the deploy stage cannot find the expected artifact in Amazon S3. This most commonly occurs when the build stage does not have an OutputArtifact configured in the pipeline definition, so the artifact is not passed to the deploy stage. Without the OutputArtifact, CodePipeline does not store the build output in the pipeline's artifact store, and CodeDeploy receives no artifact reference to download.
What should I do if I get this DVA-C02 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 2026
This DVA-C02 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the DVA-C02 exam.
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