- A
Use a single multi-stage YAML pipeline with a stage per environment. Add approvals on staging and prod stages. Ensure stages run sequentially by default.
Why wrong: No automated test gate between dev and test.
- B
Create separate YAML pipelines for each environment and use pipeline completion triggers to chain them together.
Why wrong: Lack of centralized coordination and test result propagation.
- C
Use a classic release pipeline with environments and pre-deployment approvals on staging and prod. Add a post-deployment task to run integration tests in dev and test environments.
Why wrong: Classic release pipelines do not support conditional stage execution based on test results.
- D
Use a single multi-stage YAML pipeline with a stage per environment. Add a job after deployment to dev that runs integration tests, and use a condition on the next stage to run only if tests passed. Add approvals on staging and prod stages.
Stages with conditions and approvals fulfill all requirements.
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.
You are designing a release pipeline for a critical business application that must adhere to strict compliance requirements. The pipeline must deploy to multiple environments (dev, test, staging, prod) with manual approvals required for staging and prod. Additionally, the pipeline must automatically run integration tests after deployment to dev and test, and only proceed to the next environment if tests pass. You need to implement this using Azure Pipelines YAML. What should you do?
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
Use a single multi-stage YAML pipeline with a stage per environment. Add a job after deployment to dev that runs integration tests, and use a condition on the next stage to run only if tests passed. Add approvals on staging and prod stages.
Option C is correct because it uses stages with dependencies and conditions to run tests after deployment, and approvals on staging and prod. Option A is incorrect because release pipelines with environments can't easily run tests conditionally. Option B is incorrect because separate pipelines lack coordination. Option D is incorrect because stages run sequentially by default but approvals are per environment, not stage.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Use a single multi-stage YAML pipeline with a stage per environment. Add approvals on staging and prod stages. Ensure stages run sequentially by default.
Why it's wrong here
No automated test gate between dev and test.
- ✗
Create separate YAML pipelines for each environment and use pipeline completion triggers to chain them together.
Why it's wrong here
Lack of centralized coordination and test result propagation.
- ✗
Use a classic release pipeline with environments and pre-deployment approvals on staging and prod. Add a post-deployment task to run integration tests in dev and test environments.
Why it's wrong here
Classic release pipelines do not support conditional stage execution based on test results.
- ✓
Use a single multi-stage YAML pipeline with a stage per environment. Add a job after deployment to dev that runs integration tests, and use a condition on the next stage to run only if tests passed. Add approvals on staging and prod stages.
Why this is correct
Stages with conditions and approvals fulfill all requirements.
Related concept
Static NAT maps one inside address to one outside address.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
- Static NAT maps one inside address to one outside address.
- PAT allows many inside hosts to share one public address using ports.
- Inside local and inside global describe the private and translated addresses.
- NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
- Identify inside and outside interfaces first.
- Check whether the scenario needs static NAT, dynamic NAT or PAT.
- Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
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. NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated. 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 the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related AZ-400 NAT questions on configuration and troubleshooting.
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Design and implement build and release pipelines — study guide chapter
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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 — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Use a single multi-stage YAML pipeline with a stage per environment. Add a job after deployment to dev that runs integration tests, and use a condition on the next stage to run only if tests passed. Add approvals on staging and prod stages. — Option C is correct because it uses stages with dependencies and conditions to run tests after deployment, and approvals on staging and prod. Option A is incorrect because release pipelines with environments can't easily run tests conditionally. Option B is incorrect because separate pipelines lack coordination. Option D is incorrect because stages run sequentially by default but approvals are per environment, not stage.
What should I do if I get this AZ-400 question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related AZ-400 NAT questions on configuration and troubleshooting.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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Last reviewed: Jun 20, 2026
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