This DOP-C02 practice question tests your understanding of sdlc automation. 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.
Network Topology
Refer to the exhibit. A DevOps engineer runs the command to get the pipeline definition. The pipeline has a source stage from an S3 bucket and a build stage with CodeBuild. The CodeBuild project is configured to output artifacts to a specific S3 bucket. However, the pipeline fails at the build stage with an error: 'Artifact 'BuildArtifact' is not found'. 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.
Network Topology
A
The source stage is using CodeCommit instead of S3.
Why wrong: The exhibit shows S3 as source provider.
B
The source artifact is not being passed to the build stage.
Why wrong: The source artifact is defined as input.
C
The IAM role for CodePipeline does not have permissions to read from the S3 bucket.
Why wrong: If that were the case, the source stage would fail.
D
The CodeBuild project is not configured to output the expected artifact named 'BuildArtifact'.
The build stage likely expects an output artifact that the build does not produce.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The CodeBuild project is not configured to output the expected artifact named 'BuildArtifact'.
Option D is correct because the error 'Artifact 'BuildArtifact' is not found' indicates that CodePipeline expects an artifact named 'BuildArtifact' from the CodeBuild project, but the project's output artifact configuration does not include that name. In CodePipeline, the build stage must produce an artifact with the exact name specified in the pipeline definition; if the CodeBuild project's artifacts section (in buildspec.yml or console) omits or misnames it, the pipeline fails at that stage.
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 source stage is using CodeCommit instead of S3.
Why it's wrong here
The exhibit shows S3 as source provider.
✗
The source artifact is not being passed to the build stage.
Why it's wrong here
The source artifact is defined as input.
✗
The IAM role for CodePipeline does not have permissions to read from the S3 bucket.
Why it's wrong here
If that were the case, the source stage would fail.
✓
The CodeBuild project is not configured to output the expected artifact named 'BuildArtifact'.
Why this is correct
The build stage likely expects an output artifact that the build does not produce.
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.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse permission errors (IAM) with artifact naming mismatches, or assume the source stage is misconfigured, when the real issue is a simple name mismatch between the pipeline's expected output artifact and the CodeBuild project's actual output artifact.
Trap categories for this question
Command / output trap
The exhibit shows S3 as source provider.
Detailed technical explanation
How to think about this question
Under the hood, CodePipeline uses the 'OutputArtifacts' field in the pipeline definition to map artifact names to CodeBuild's output. The CodeBuild project must define an artifact with the same name in its 'artifacts' configuration (either via the console or the 'artifacts' section in buildspec.yml). A common real-world scenario is when a buildspec.yml specifies 'name: myArtifact' but the pipeline expects 'BuildArtifact', causing a mismatch that halts the pipeline with the exact error shown.
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.
SDLC Automation — This question tests SDLC Automation — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The CodeBuild project is not configured to output the expected artifact named 'BuildArtifact'. — Option D is correct because the error 'Artifact 'BuildArtifact' is not found' indicates that CodePipeline expects an artifact named 'BuildArtifact' from the CodeBuild project, but the project's output artifact configuration does not include that name. In CodePipeline, the build stage must produce an artifact with the exact name specified in the pipeline definition; if the CodeBuild project's artifacts section (in buildspec.yml or console) omits or misnames it, the pipeline fails at that stage.
What should I do if I get this DOP-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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Question Discussion
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