Microsoft DevOps Engineer Expert AZ-400 Practice Question

Your team manages hundreds of Azure virtual machines across multiple subscriptions. You must ensure the nginx package is installed and running on every Ubuntu VM, detect and automatically remediate configuration drift about every 15 minutes, surface compliance data through Azure Policy, and store the configuration definition as code in GitHub. Which Azure-native service should you use to meet these requirements?

Azure Automanage Machine Configuration
Azure App Configuration Feature Manager
Azure Automation State Configuration (DSC)
Azure Image Builder

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Answer Description

Azure Automanage Machine Configuration (based on the Guest Configuration agent) assigns a guest configuration policy that can both audit and remediate settings such as installed packages. The agent reevaluates approximately every 15 minutes, and compliance results are surfaced through Azure Policy for reporting and governance. Configuration code is written declaratively (DSC-style) and can be stored in source control such as GitHub. Azure Automation State Configuration provides DSC but has no direct Azure Policy integration. Azure App Configuration Feature Manager handles feature flags, not VM configuration. Azure Image Builder creates custom images and does not enforce ongoing configuration.

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Microsoft DevOps Engineer Expert AZ-400

Design and implement build and release pipelines

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Design and implement processes and communications

Design and implement a source control strategy

Design and implement build and release pipelines

Develop a security and compliance plan

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