AZ-400 Development Processes & Continuous Integration 4

Question 1

A company stores pipeline variables in Azure Key Vault and references them in pipelines. Which Azure DevOps feature enables this integration natively?

Accepted Answer

Variable groups linked to Azure Key Vault

Answer

Variable groups in Azure DevOps Library can be linked to Azure Key Vault, automatically syncing secrets as pipeline variables at runtime.

Question 2

When configuring a CI build for a .NET application in Azure Pipelines, which task restores NuGet package dependencies?

Accepted Answer

DotNetCoreCLI with command 'restore'

Answer

The DotNetCoreCLI task with command 'restore' runs 'dotnet restore' to download and cache all NuGet package dependencies defined in the project.

Question 3

A pipeline must build a Docker image and push it to Azure Container Registry (ACR). Which service connection type is required?

Accepted Answer

Docker Registry service connection pointing to ACR

Answer

A Docker Registry service connection configured for ACR provides the credentials needed to authenticate the Docker push task against your container registry.

Question 4

You want to cache NuGet packages between pipeline runs to speed up builds. Which Azure Pipelines feature should you use?

Accepted Answer

The Cache task with a key based on the packages.lock.json hash

Answer

The Cache task saves and restores directories between pipeline runs using a cache key, with the packages.lock.json hash ensuring the cache is invalidated when dependencies change.

Question 5

Which Azure Pipelines condition syntax runs a step only when the previous step fails?

Accepted Answer

condition: failed()

Answer

The 'failed()' condition causes a step to execute only if the preceding step or job has failed, useful for cleanup or notification tasks.

AZ-400 Practice Test

AZ-400 Practice Test

AZ-400 Development Processes & Continuous Integration 4