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AZ-400 Practice Test


Page 33 out of 98 Pages

Topic 4: Mix Questions Set

You are monitoring the health and performance of an Azure web app by using Azure Application Insights. You need to ensure that an alert is sent when the web app has a sudden rise in performance issues and failures. What should you use?


A. custom events


B. Application Insights Profiler


C. usage analysis


D. Smart Detection


E. Continuous export





D.
  Smart Detection

Explanation: Smart Detection automatically warns you of potential performance problems and failure anomalies in your web application. It performs proactive analysis of the telemetry that your app sends to Application Insights. If there is a sudden rise in failure rates, or abnormal patterns in client or server performance, you get an alert.

You store source code in a Git repository in Azure repos. You use a third-party continuous integration (CI) tool to control builds. What will Azure DevOps use to authenticate with the tool?


A. certificate authentication


B. a personal access token (PAT)


C. a Shared Access Signature (SAS) token


D. NTLM authentication





B.
  a personal access token (PAT)

Personal access tokens (PATs) give you access to Azure DevOps and Team Foundation Server (TFS), without using your username and password directly.

Your company hosts a web application in Azure. The company uses Azure Pipelines for the build and release management of the application. Stakeholders report that the past few releases have negatively affected system performance. You configure alerts in Azure Monitor. You need to ensure that new releases are only deployed to production if the releases meet defined performance baseline criteria in the staging environment first What should you use to prevent the deployment of releases that fail to meet the performance baseline?


A. a trigger


B. an Azure function


C. a gate


D. an Azure Scheduler job





C.
  a gate

Your company develops an application named App1 that is deployed in production. As part of an application update, a new service is being added to App1. The new service requires access to an application named App2 that is currently in development. You need to ensure that you can deploy the update to App1 before App2 becomes available. You must be able to enable the service in App1 once App2 is deployed. What should you do?


A. Create a branch in the build


B. Implement a branch policy


C. Create a fork in the build


D. Implement a feature flag





D.
  Implement a feature flag

You are designing a configuration management solution to support five apps hosted on Azure App Service. Each app is available in the following three environments: development, test, and production. You need to recommend a configuration management solution that meets the following requirements:

  • Supports feature flags
  • Tracks configuration changes from the past 30 days
  • Stores hierarchically structured configuration values
  • Controls access to the configurations by using role-based access control (RBAC) permission
  • Stores shared values as key/value pairs that can be used by all the apps
Which Azure service should you recommend as the configuration management solution?


A. Azure Cosmos DB


B. Azure App Service


C. Azure App Configuration


D. Azure Key Vault





A.
  Azure Cosmos DB

Explanation: The Feature Manager in the Azure portal for App Configuration provides a UI for creating and managing the feature flags that you use in your applications. App Configuration offers the following benefits:

  • A fully managed service that can be set up in minutes
  • Flexible key representations and mappings
  • Tagging with labels
  • Point-in-time replay of settings
  • Dedicated UI for feature flag management
  • Comparison of two sets of configurations on custom-defined dimensions
  • Enhanced security through Azure-managed identities
  • Encryption of sensitive information at rest and in transit
  • Native integration with popular frameworks
App Configuration complements Azure Key Vault, which is used to store application secrets.


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