The correct answer is to change the execution mode to PARALLEL, as this setting allows the pipeline to run multiple executions concurrently, one for each commit pushed simultaneously. In AWS CodePipeline, the PARALLEL execution mode ensures that no commit is skipped by deploying all commits in separate, independent executions, unlike QUEUED mode which can cause later commits to supersede earlier ones when multiple pushes occur at once. On the AWS Certified DevOps Engineer Professional DOP-C02 exam, this question tests your understanding of pipeline execution behavior under concurrent commits, a common scenario where engineers mistakenly assume queuing guarantees deployment order. A frequent trap is confusing QUEUED with SERIAL—while SERIAL runs one at a time, it still risks skipping if a newer execution supersedes an older one in the queue. Remember the memory tip: “Parallel means all commits get their own lane, no one gets skipped in the rain.”
DOP-C02 SDLC Automation Practice Question
This DOP-C02 practice question tests your understanding of sdlc automation. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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.
Exhibit
Refer to the exhibit.
# AWS CLI output from 'aws codepipeline list-pipelines'
{
"pipelines": [
{
"name": "my-app-pipeline",
"version": 5,
"created": 1620000000.0,
"pipelineType": "V1",
"executionMode": "QUEUED"
}
]
}
Refer to the exhibit. A DevOps engineer sees this output when listing pipelines. The pipeline 'my-app-pipeline' has execution mode set to 'QUEUED'. The team reports that when multiple commits are pushed simultaneously, only the latest commit is deployed, and earlier ones are skipped. How should the pipeline execution mode be changed to ensure all commits are deployed?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Change the execution mode to 'PARALLEL'.
Option B is correct because 'PARALLEL' execution mode allows multiple pipeline executions to run concurrently, one per commit. Option A is incorrect because 'SUPERSEDED' would replace the current execution with a new one. Option C is incorrect because 'SERIAL' would queue them but run one at a time, potentially still skipping if a newer one supersedes. Option D is incorrect because V2 pipelines support only 'QUEUED' and 'SUPERSEDED', not 'PARALLEL'.
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.
✗
Change the execution mode to 'SUPERSEDED'.
Why it's wrong here
SUPERSEDED stops the current execution and starts a new one, which would skip commits.
✗
Upgrade the pipeline to V2 type which supports 'QUEUED' mode.
Why it's wrong here
QUEUED is the current mode; upgrading does not solve the issue.
✗
Change the execution mode to 'SERIAL'.
Why it's wrong here
SERIAL queues executions but still only one runs at a time, which could delay but not skip.
✓
Change the execution mode to 'PARALLEL'.
Why this is correct
PARALLEL allows multiple executions to run simultaneously for each commit.
Related concept
Read the scenario before looking for a memorised answer.
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 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
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.
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: Change the execution mode to 'PARALLEL'. — Option B is correct because 'PARALLEL' execution mode allows multiple pipeline executions to run concurrently, one per commit. Option A is incorrect because 'SUPERSEDED' would replace the current execution with a new one. Option C is incorrect because 'SERIAL' would queue them but run one at a time, potentially still skipping if a newer one supersedes. Option D is incorrect because V2 pipelines support only 'QUEUED' and 'SUPERSEDED', not 'PARALLEL'.
What should I do if I get this DOP-C02 question wrong?
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.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
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.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.