AZ-204 Question #60: Real Exam Question with Answer & Explanation

Question

Case Study 7 - Proseware, Inc Background You are a developer for Proseware, Inc. You are developing an application that applies a set of governance policies for Proseware's internal services, external services, and applications. The application will also provide a shared library for common functionality. Requirements Policy service You develop and deploy a stateful ASP.NET Core 2.1 web application named Policy service to an Azure App Service Web App. The application reacts to events from Azure Event Grid and performs policy actions based on those events. The application must include the Event Grid Event ID field in all Application Insights telemetry. Policy service must use Application Insights to automatically scale with the number of policy actions that it is performing. Policies Log Policy All Azure App Service Web Apps must write logs to Azure Blob storage. All log files should be saved to a container named logdrop. Logs must remain in the container for 15 days. Authentication events Authentication events are used to monitor users signing in and signing out. All authentication events must be processed by Policy service. Sign outs must be processed as quickly as possible. PolicyLib You have a shared library named PolicyLib that contains functionality common to all ASP.NET Core web services and applications. The PolicyLib library must: Exclude non-user actions from Application Insights telemetry. Provide methods that allow a web service to scale itself Ensure that scaling actions do not disrupt application usage Other Anomaly detection service You have an anomaly detection service that analyzes log information for anomalies. It is implemented as an Azure Machine Learning model. The model is deployed as a web service. If an anomaly is detected, an Azure Function that emails administrators is called by using an HTTP WebHook. Health monitoring All web applications and services have health monitoring at the /health service endpoint. Policy loss When you deploy Policy service, policies may not be applied if they were in the process of being applied during the deployment. Performance issue When under heavy load, the anomaly detection service undergoes slowdowns and rejects connections. Notification latency Users report that anomaly detection emails can sometimes arrive several minutes after an anomaly is detected. Relevant portions of the app files are shown below. Line numbers are included for reference only and include a two-character prefix that denotes the specific file to which they belong. Relevant portions of the app files are shown below. Line numbers are included for reference only and include a two-character prefix that denotes the specific file to which they belong. You need to ensure that the solution can meet the scaling requirements for Policy Service. Which Azure Application Insights data model should you use?

Options

• Aan Application Insights metric
• Ban Application Insights dependency
• Can Application Insights trace
• Dan Application Insights event

Explanation

Application Insights provides three additional data types for custom telemetry: Trace - used either directly, or through an adapter to implement diagnostics logging using an instrumentation framework that is familiar to you, such as Log4Net or System.Diagnostics. Event - typically used to capture user interaction with your service, to analyze usage patterns. Metric - used to report periodic scalar measurements. Policy service must use Application Insights to automatically scale with the number of policy actions that it is performing. https://docs.microsoft.com/en-us/azure/azure-monitor/app/data-model

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