- A
Create a single release pipeline with one stage that deploys to both dev and staging simultaneously, and add a manual intervention task before staging deployment.
Why wrong: Simultaneous deployment is not appropriate; dev and staging have different purposes.
- B
Create a single release pipeline with two stages: 'Dev' triggered automatically on successful build, and 'Staging' with a pre-deployment approval gate.
This provides automatic deployment to dev and controlled deployment to staging with approval.
- C
Create two separate release pipelines: one for dev with continuous deployment trigger, and one for staging with a manual trigger.
Why wrong: Separate pipelines are harder to maintain and don't reflect the same build artifacts.
- D
Create a single release pipeline with two stages: 'Dev' triggered automatically, and 'Staging' with a post-deployment approval gate and disable continuous deployment trigger.
Why wrong: Disabling CD trigger would not allow automatic deployment to staging after approval; approval should be pre-deployment.
AZ-400 Practice Question: Design and implement build and release pipelines
This AZ-400 practice question tests your understanding of design and implement build and release pipelines. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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.
Your company develops a microservices-based application deployed on Azure Kubernetes Service (AKS). The CI/CD pipeline uses Azure Pipelines. The development team has recently adopted a trunk-based development strategy where all feature work is done on short-lived branches that merge to main at least daily. The release pipeline must automatically deploy to a development environment on each commit to main, and to a staging environment after a manual approval. The staging environment is used for integration tests and must remain stable. You need to design the release pipeline strategy to support this workflow. What should you do?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"least"Why it matters: You want the option with minimum overhead, fewest steps, or lowest impact — not the most feature-rich or comprehensive answer.
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
Create a single release pipeline with two stages: 'Dev' triggered automatically on successful build, and 'Staging' with a pre-deployment approval gate.
Option A is correct: A single release pipeline with multiple stages (dev and staging) and an approval gate on staging meets the requirements. Option B is incorrect because separate pipelines would cause duplication and maintenance overhead. Option C is incorrect because multiple environments in a single stage would not allow different triggers. Option D is incorrect because disabling CD for staging would require manual promotion, which is not desired.
Key principle: A trunk being up does not mean the VLAN is allowed across it. Always verify the allowed VLAN list and whether the VLAN exists on both switches.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Create a single release pipeline with one stage that deploys to both dev and staging simultaneously, and add a manual intervention task before staging deployment.
Why it's wrong here
Simultaneous deployment is not appropriate; dev and staging have different purposes.
- ✓
Create a single release pipeline with two stages: 'Dev' triggered automatically on successful build, and 'Staging' with a pre-deployment approval gate.
Why this is correct
This provides automatic deployment to dev and controlled deployment to staging with approval.
Clue confirmation
The clue word "least" in the question point toward this answer.
Related concept
Access ports place end devices into a single VLAN.
- ✗
Create two separate release pipelines: one for dev with continuous deployment trigger, and one for staging with a manual trigger.
Why it's wrong here
Separate pipelines are harder to maintain and don't reflect the same build artifacts.
- ✗
Create a single release pipeline with two stages: 'Dev' triggered automatically, and 'Staging' with a post-deployment approval gate and disable continuous deployment trigger.
Why it's wrong here
Disabling CD trigger would not allow automatic deployment to staging after approval; approval should be pre-deployment.
Common exam traps
Common exam trap: an active trunk can still block the VLAN you need
A trunk being up does not prove every VLAN is crossing it. Check allowed VLAN lists, native VLAN mismatch, VLAN existence and access-port assignment.
Detailed technical explanation
How to think about this question
VLAN questions usually combine access-port and trunking clues. The key is to identify whether the issue is local to one switchport, caused by the trunk, or caused by the VLAN not existing where it needs to exist.
KKey Concepts to Remember
- Access ports place end devices into a single VLAN.
- Trunk ports carry multiple VLANs between switches.
- Allowed VLAN lists decide which VLANs can cross a trunk.
- Native VLAN mismatch can create confusing symptoms.
TExam Day Tips
- Use show vlan brief to verify access VLANs.
- Use show interfaces trunk to verify trunk state and allowed VLANs.
- Do not treat every same-VLAN issue as a routing problem.
Key takeaway
A trunk being up does not mean the VLAN is allowed across it. Always verify the allowed VLAN list and whether the VLAN exists on both switches.
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. A trunk being up does not mean the VLAN is allowed across it. Always verify the allowed VLAN list and whether the VLAN exists on both switches. 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.
Review VLAN allowed lists, native VLAN mismatch detection, and how to verify VLAN membership with show vlan brief and show interfaces trunk. Then practise related AZ-400 questions on switching, trunking, and access-port configuration.
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FAQ
Questions learners often ask
What does this AZ-400 question test?
Design and implement build and release pipelines — This question tests Design and implement build and release pipelines — Access ports place end devices into a single VLAN..
What is the correct answer to this question?
The correct answer is: Create a single release pipeline with two stages: 'Dev' triggered automatically on successful build, and 'Staging' with a pre-deployment approval gate. — Option A is correct: A single release pipeline with multiple stages (dev and staging) and an approval gate on staging meets the requirements. Option B is incorrect because separate pipelines would cause duplication and maintenance overhead. Option C is incorrect because multiple environments in a single stage would not allow different triggers. Option D is incorrect because disabling CD for staging would require manual promotion, which is not desired.
What should I do if I get this AZ-400 question wrong?
Review VLAN allowed lists, native VLAN mismatch detection, and how to verify VLAN membership with show vlan brief and show interfaces trunk. Then practise related AZ-400 questions on switching, trunking, and access-port configuration.
Are there clue words in this question I should notice?
Yes — watch for: "least". You want the option with minimum overhead, fewest steps, or lowest impact — not the most feature-rich or comprehensive answer.
What is the key concept behind this question?
Access ports place end devices into a single VLAN.
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Last reviewed: Jun 20, 2026
This AZ-400 practice question is part of Courseiva's free Microsoft 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 AZ-400 exam.
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