AZ-400 Deployment Patterns 3

Question 1

Which Azure Pipelines built-in task is used to deploy an ARM template to a resource group?

Accepted Answer

AzureResourceManagerTemplateDeployment@3

Answer

The AzureResourceManagerTemplateDeployment task (ARM template deployment) deploys ARM JSON templates to an Azure resource group.

Question 2

What is the key difference between 'rolling' and 'recreate' deployment strategies in Kubernetes?

Accepted Answer

Recreate terminates all old pods before starting new ones; rolling gradually replaces them

Answer

Recreate causes downtime by killing all existing pods first, while RollingUpdate replaces pods incrementally to maintain availability.

Question 3

An Azure release pipeline stage has an 'Invoke Azure Function' gate configured. When does this gate run?

Accepted Answer

Automatically before and/or after the deployment stage at configured intervals

Answer

Invoke Azure Function gates run on a polling interval before or after a stage and the stage proceeds only when the function returns a success response.

Question 4

You want to ensure that a deployment to production automatically rolls back if the error rate exceeds 5% within 10 minutes of release. Which Azure service pair best supports this?

Accepted Answer

Application Insights + Azure Monitor alerts with auto-rollback action group

Answer

Application Insights detects error rate spikes and Azure Monitor alert rules can trigger action groups that initiate a rollback via webhooks or Logic Apps.

Question 5

In GitOps-style deployments using Azure Arc-enabled Kubernetes, what acts as the source of truth for the desired cluster state?

Accepted Answer

A Git repository configured as a flux configuration

Answer

GitOps with Azure Arc uses Flux to continuously reconcile the cluster state against manifests stored in a Git repository, which is the single source of truth.

AZ-400 Practice Test

AZ-400 Practice Test

AZ-400 Deployment Patterns 3