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. 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.
Exhibit
Refer to the exhibit.
```yaml
jobs:
- deployment: Deploy
environment: prod
strategy:
runOnce:
deploy:
steps:
- download: current
artifact: drop
- task: AzureWebApp@1
inputs:
azureSubscription: 'myServiceConnection'
appName: 'myApp'
package: '$(Pipeline.Workspace)/drop/*.zip'
```
The exhibit shows a deployment job in an Azure Pipelines YAML file. The deployment fails with the error 'No package found with pattern: $(Pipeline.Workspace)/drop/*.zip'. What is the most likely cause?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Refer to the exhibit.
```yaml
jobs:
- deployment: Deploy
environment: prod
strategy:
runOnce:
deploy:
steps:
- download: current
artifact: drop
- task: AzureWebApp@1
inputs:
azureSubscription: 'myServiceConnection'
appName: 'myApp'
package: '$(Pipeline.Workspace)/drop/*.zip'
```
A
The artifact is not downloaded to the expected path; the artifact name must be included in the path.
The downloaded artifact is placed under '$(Pipeline.Workspace)/<artifact name>/'. If the artifact is named 'drop', the correct path is '$(Pipeline.Workspace)/drop'.
B
The wildcard pattern '*.zip' is not supported.
Why wrong: Wildcards are supported in the package path.
C
The Azure service connection has expired.
Why wrong: The error is about missing package, not authentication.
D
The pipeline is using a Microsoft-hosted agent that does not support the download task.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The artifact is not downloaded to the expected path; the artifact name must be included in the path.
Option C is correct because the 'download: current' step downloads the artifact from the current pipeline run, but the artifact path usually includes the artifact name as a subfolder. The correct path would be '$(Pipeline.Workspace)/drop' or '$(Pipeline.Workspace)/drop/**/*.zip'. Option A is wrong because the service connection is unrelated to the artifact. Option B is wrong because the wildcard is valid. Option D is wrong because the agent type does not affect artifact download behavior.
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.
✓
The artifact is not downloaded to the expected path; the artifact name must be included in the path.
Why this is correct
The downloaded artifact is placed under '$(Pipeline.Workspace)/<artifact name>/'. If the artifact is named 'drop', the correct path is '$(Pipeline.Workspace)/drop'.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Static NAT maps one inside address to one outside address.
✗
The wildcard pattern '*.zip' is not supported.
Why it's wrong here
Wildcards are supported in the package path.
✗
The Azure service connection has expired.
Why it's wrong here
The error is about missing package, not authentication.
✗
The pipeline is using a Microsoft-hosted agent that does not support the download task.
Why it's wrong here
The download task works on all agents.
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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this AZ-400 question in full detail.
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.
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: The artifact is not downloaded to the expected path; the artifact name must be included in the path. — Option C is correct because the 'download: current' step downloads the artifact from the current pipeline run, but the artifact path usually includes the artifact name as a subfolder. The correct path would be '$(Pipeline.Workspace)/drop' or '$(Pipeline.Workspace)/drop/**/*.zip'. Option A is wrong because the service connection is unrelated to the artifact. Option B is wrong because the wildcard is valid. Option D is wrong because the agent type does not affect artifact download behavior.
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.
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?
Static NAT maps one inside address to one outside address.
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