Free AZ-400 sample questions
Real questions from the Designing and Implementing Microsoft DevOps Solutions practice bank, with the correct answer and an explanation for each one. No junk, no filler.
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Showing 10 of 20 free sample questions.
A DevOps team is tasked with monitoring a suite of microservices deployed to Azure Kubernetes Service (AKS). They need to collect detailed performance metrics, dependency maps, and trace transactions across services to quickly identify bottlenecks. The solution must integrate seamlessly with Azure Monitor and support custom telemetry. Which Azure service is specifically designed for this level of application performance monitoring?
A security team wants to implement a robust secret management strategy for their Azure Pipelines. They have the following requirements: 1. Secrets must be stored centrally and securely outside of Azure DevOps. 2. Pipelines must be able to retrieve secrets at runtime without exposing them in logs. 3. Access to secrets should be granted based on the pipeline's identity, not on user credentials. Which combination of Azure services and features best meets these requirements? (Select TWO)
A project manager at a large enterprise is concerned about the team's release cadence and efficiency. They want to track key DORA (DevOps Research and Assessment) metrics, specifically Lead Time for Changes and Deployment Frequency. The team uses Azure Boards for work items and Azure Pipelines for CI/CD. Where can the project manager most effectively visualize these metrics in a continuously updated dashboard?
A development team is building a containerized application and using a YAML pipeline in Azure Pipelines to build and push the image to Azure Container Registry (ACR). During a security review, it was mandated that no container image with 'High' or 'Critical' vulnerabilities should be pushed to the production ACR instance. What is the most integrated and automated way to enforce this within the Azure ecosystem?
A team is adopting trunk-based development using GitHub. To maintain code quality and prevent broken builds, they want to enforce that all pull requests targeting the `main` branch must pass a series of checks before they can be merged. These checks include a successful build, a minimum code coverage percentage, and a security scan. What GitHub feature should be configured on the `main` branch to enforce these requirements?
A DevOps engineer needs to write a Kusto Query Language (KQL) query in Log Analytics to investigate performance issues. The goal is to find the average request duration for all failed requests (resultCode starts with '5') in the `requests` table over the last 24 hours, summarized into 1-hour intervals. Which KQL query correctly accomplishes this?
A manufacturing company is modernizing its application deployment. The primary goal is to minimize downtime and risk when deploying new versions of their critical inventory management web app, which is hosted on Azure App Service. They want to route a small percentage of live traffic to the new version for a period of time to monitor its performance and stability before rolling it out to all users. Which deployment strategy should they implement?
True or False: When using GitHub Advanced Security, secret scanning is limited to detecting secrets only in the default branch of a repository.
A DevOps team manages multiple projects, each with its own Azure Pipeline. To ensure consistency and reduce redundant code, they want to create a reusable component that defines a sequence of steps for running integration tests. This component should be easily versioned and shared across different pipelines. Which Azure Pipelines feature is best suited for this purpose?
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