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Question 1,469 of 1,740

SDLC Automation →hardMultiple ChoiceObjective-mapped

Quick Answer

The answer is the pipeline's cross-region action configuration references the deployment group in a different region without specifying the region. This is because CodePipeline allows you to define cross-region actions, but if the deployment group’s region is not explicitly set in the action configuration, the pipeline defaults to its own region, causing a mismatch when the deployment group ARN points to a different region. On the AWS Certified DevOps Engineer Professional DOP-C02 exam, this scenario tests your understanding of how cross-region pipelines resolve action providers—a common trap is assuming the deployment group name or IAM permissions are at fault, when the real issue is an implicit region mismatch. A key memory tip: always verify that the region parameter in the cross-region action matches the deployment group’s region, or the pipeline will look for the group in the wrong place.

DOP-C02 SDLC Automation Practice Question

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.

A company uses AWS CodePipeline with an Amazon S3 source, AWS CodeBuild, and AWS CodeDeploy. The deployment stage fails intermittently with the error 'Deployment failed because the deployment group does not exist'. The pipeline has been working for months. 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.

Question 1hardmultiple choice

Full question →

A
The deployment group name contains a typo in the pipeline definition.
Why wrong: If there was a typo, the error would occur every time, not intermittently.
B
The IAM role for CodePipeline does not have sufficient permissions in all regions.
Why wrong: IAM roles are region-agnostic; permissions are global. The error is about group existence, not permissions.
C
The pipeline's cross-region action configuration references the deployment group in a different region without specifying the region.
If the pipeline uses a cross-region action and the region is not specified, it defaults to the pipeline region, which may not have the deployment group, causing intermittent failures when the region changes.
D
The pipeline was recreated without specifying the deployment group.
Why wrong: The pipeline is not being recreated; the error occurs intermittently.

Full breakdown with real-world context →

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's cross-region action configuration references the deployment group in a different region without specifying the region.

Option D is correct because the deployment group ARN is passed as a parameter; if the region is not specified, the default region may differ from the pipeline's region. Option A is wrong because IAM permissions are not tied to region. Option B is wrong because the deployment group name is not case-sensitive. Option C is wrong because the pipeline is not being recreated, only the deployment group reference changes.

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 deployment group name contains a typo in the pipeline definition.
Why it's wrong here
If there was a typo, the error would occur every time, not intermittently.
✗
The IAM role for CodePipeline does not have sufficient permissions in all regions.
Why it's wrong here
IAM roles are region-agnostic; permissions are global. The error is about group existence, not permissions.
✓
The pipeline's cross-region action configuration references the deployment group in a different region without specifying the region.
Why this is correct
If the pipeline uses a cross-region action and the region is not specified, it defaults to the pipeline region, which may not have the deployment group, causing intermittent failures when the region changes.
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 pipeline was recreated without specifying the deployment group.
Why it's wrong here
The pipeline is not being recreated; the error occurs intermittently.

Common exam traps

Common exam trap: answer the scenario, not the keyword

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.

Detailed technical explanation

How to think about this question

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.

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.
Use explanations to understand the rule behind the answer.

TExam Day Tips

Underline the problem statement mentally.
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.

What to study next

Got this wrong? Here's your next step.

Identify which DOP-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

Questions learners often ask

What does this DOP-C02 question test?

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 pipeline's cross-region action configuration references the deployment group in a different region without specifying the region. — Option D is correct because the deployment group ARN is passed as a parameter; if the region is not specified, the default region may differ from the pipeline's region. Option A is wrong because IAM permissions are not tied to region. Option B is wrong because the deployment group name is not case-sensitive. Option C is wrong because the pipeline is not being recreated, only the deployment group reference changes.

What should I do if I get this DOP-C02 question wrong?

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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This DOP-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 DOP-C02 exam.