Exam AZ-400 topic 3 question 12 discussion

Ans should be C & E.

C and E https://docs.microsoft.com/en-us/azure/azure-monitor/app/asp-net-core

To capture telemetry data while minimizing storage costs, you should: B. From the code of the application, enable adaptive sampling. C. From the code of the application, add Azure Application Insights telemetry. These actions ensure that you are collecting necessary telemetry data while using adaptive sampling to control the volume of data sent, thus reducing storage costs. Option E, which involves disabling adaptive sampling, would not minimize storage costs, which would mean that all telemetry data is sent without any adjustments, which could lead to higher storage costs and potentially overwhelm your telemetry system with too much data. Adaptive sampling helps reduce the volume of telemetry data sent by dynamically adjusting the sampling rate based on the traffic, thus lowering storage costs. https://learn.microsoft.com/en-us/azure/azure-monitor/app/sampling-classic-api

I would go B & C Yes adaptive sampling is enabled by default, but it does not makes sense to disable it. And yes the 'ApplicationInsights.config' is not present in an ASP.NET Core application.

Ans should be C & E.

C and E since Adaptive sampling is already true by default in dot net core

Normally these two steps would do it in combination but second step is not there. 1) Disable Adabptive Sampling 2) Changing Usage and estimated costs->Data Sampling in Azure

By disabling Adaptive Sampling, we can use the ingestion sampling. Then we can then set the sampling rate in the Usage and estimated costs.

are building an ASP.NET Core application. You plan to create an application utilization baseline by capturing telemetry data. You need to add code to the application to capture the telemetry data. The solution must minimize the costs of storing the telemetry data. Which two actions should you perform? Each correct answer presents part of the solution. NOTE: Each correct selection is worth one point A. Add the <InitialSamplingPercentage>99</InitialSamplingPercentage> parameter to the ApplicationInsights.config file. B. From the code of the application, enable adaptive sampling. C. From the code of the application, add Azure Application Insights telemetry. Most Voted D. Add the <MaxTelemetryItemsPerSecond>5</MaxTelemetryItemsPerSecond> parameter to the ApplicationInsights.config file. E. From the code of the application, disable adaptive sampling.

C&E. 1. Adaptive Sampling is by default which needed to be disabled. so, E is in and B is out 2.there is no ApplicationInsights.config in .NET Core app, so A and D are out. 3. C & E are the winer

Ingestion sampling reduces the amount processed and retained (and charged for) by Application Insights. Set the sampling rate in the Usage and estimated costs page. Default setting is adaptive sampling, but in order to set ingestion sampling, you have to disable the adaptive sampling and set the sampling rate in the Usage and estimated costs page. Source: https://learn.microsoft.com/en-us/azure/azure-monitor/app/sampling

I hope this sheds some light on why options A, C, and E are not the best choices for minimizing telemetry data storage costs. Options B and D are the correct answers to meet telemetry capture requirements with minimal costs.

Configure sampling settings Use extension methods of TelemetryProcessorChainBuilder as shown below to customize sampling behavior. Important If you use this method to configure sampling, please make sure to set the aiOptions.EnableAdaptiveSampling property to false when calling AddApplicationInsightsTelemetry(). After making this change, you then need to follow the instructions in the code block below exactly in order to re-enable adaptive sampling with your customizations in place. Failure to do so can result in excess data ingestion. Always test post changing sampling settings, and set an appropriate daily data cap to help control your costs. builder.Services.AddApplicationInsightsTelemetry(new ApplicationInsightsServiceOptions { EnableAdaptiveSampling = false, });

To capture telemetry data and minimize storage costs for an ASP.NET Core application, you should enable **adaptive sampling** in the code of the application and add **Azure Application Insights telemetry**¹. Adaptive sampling ensures that only a representative sample of telemetry data is captured, reducing the overall volume of data and minimizing storage costs³. So, the two actions you should perform are **B. From the code of the application, enable adaptive sampling** and **C. From the code of the application, add Azure Application Insights telemetry**.

If your goal is to minimize the cost of storing telemetry data, using Fixed Rate Sampling is a more appropriate approach. In this case, the correct answers would be: C. From the code of the application, add Azure Application Insights telemetry. E. From the code of the application, disable adaptive sampling. By disabling adaptive sampling (E) and using Fixed Rate Sampling, you can control the volume of telemetry data sent from your application, reducing the storage cost. Adding Azure Application Insights telemetry (C) will enable you to collect and analyze the telemetry data from your ASP.NET Core application.

B. From the code of the application, enable adaptive sampling. C. From the code of the application, add Azure Application Insights telemetry. Explanation: To capture telemetry data and minimize storage costs, you should enable adaptive sampling in the code of the application and add Azure Application Insights telemetry. Adaptive sampling ensures that only a representative sample of telemetry data is captured, reducing the overall volume of data and minimizing storage costs. Adding Azure Application Insights telemetry to the code allows the application to send telemetry data to the Application Insights service. The other options listed are not relevant to capturing telemetry data and minimizing storage costs.

It was on my exam on December 7, 2022.