20 Azure Application Insights Interview Questions and Answers

Azure Application Insights is a monitoring service that helps developers troubleshoot issues and track performance in their web applications. If you are interviewing for a position that involves working with Azure Application Insights, you can expect to be asked questions about your experience and knowledge of the platform. In this article, we review some of the most common Azure Application Insights interview questions and provide guidance on how to answer them.

Azure Application Insights Interview Questions and Answers

Here are 20 commonly asked Azure Application Insights interview questions and answers to prepare you for your interview:

1. What is Azure Application Insights?

Azure Application Insights is a monitoring service that provides performance and usage data for applications. This data can be used to help improve the performance of applications and identify potential issues.

2. How does Azure Application Insights monitor an application in production?

Azure Application Insights monitors an application in production by collecting data about the application’s performance and usage. This data is then used to help identify issues and improve the overall quality of the application.

3. Are there any limitations to using Azure Application Insights for monitoring applications in production? If yes, then which ones?

There are a few potential limitations to be aware of when using Azure Application Insights for monitoring applications in production. First, Application Insights can only monitor applications that are hosted in Azure. Additionally, Application Insights is not able to monitor applications that use certain technologies, such as Azure Service Fabric or Azure Functions. Finally, Application Insights can only monitor a limited number of resources within an application, so it is important to carefully select which resources to monitor in order to get the most useful information.

4. Can you explain the difference between availability and performance testing?

Availability testing is conducted to determine whether a system can remain operational under a given workload, while performance testing is conducted to determine how well a system functions under a given workload. In general, availability testing is focused on ensuring that the system is up and running, while performance testing is focused on ensuring that the system is running smoothly and efficiently.

5. How can I use Azure Application Insights for memory profiling of my application?

You can use Azure Application Insights for memory profiling of your application by setting up a memory dump. This will allow you to see how your application is using memory and identify any areas where there may be potential memory leaks.

6. Do you think it’s a good idea to integrate Azure Application Insights with other tools such as New Relic or DataDog? If not, why?

While Azure Application Insights can provide a lot of valuable data on its own, integrating it with other tools can give you an even more comprehensive view of your application’s performance. New Relic and DataDog are both popular choices for application performance monitoring, and integrating with them can help you get the most out of Application Insights.

7. Is it possible to display data from Azure Application Insights on a dashboard? If yes, then how?

Yes, it is possible to display data from Azure Application Insights on a dashboard. To do this, you will need to use the Azure Portal. From the Azure Portal, you can select the Application Insights resource that you want to display data from. Then, select the “Metrics” blade. From here, you can select the metric that you want to display on the dashboard, and then select the “Pin to Dashboard” button.

8. Is it possible to export data stored in Azure Application Insights? If yes, then how?

Yes, it is possible to export data stored in Azure Application Insights. You can do this by using the Azure Portal, or by using the Azure CLI.

9. Does Azure Application Insights work only with Microsoft technologies?

No, Azure Application Insights works with any technology, as long as it can send data to the Azure Application Insights service.

10. What are some alternatives to Azure Application Insights that should be considered if we want to monitor our web application in production?

Some other options to consider for monitoring web applications in production are New Relic, AppDynamics, and Dynatrace.

11. What are the different types of dashboards that can be created in Azure Application Insights?

There are three types of dashboards that can be created in Azure Application Insights:

-The first type is the Performance Dashboard, which gives you an overview of the performance of your application.

-The second type is the Usage Dashboard, which gives you an overview of how your application is being used.

-The third type is the Error Dashboard, which gives you an overview of any errors that have occurred in your application.

12. What do you understand about custom events in Azure Application Insights? How can they be used?

Custom events in Azure Application Insights can be used to track specific events that are important to your application. For example, you could use a custom event to track when a user logs in, or when a specific button is clicked. By tracking these events, you can gain valuable insights into how your application is being used, and what areas may need improvement.

13. What are the different ways to set up Application Insights in an application?

There are a few different ways to set up Application Insights in an application. The most common way is to use the Application Insights SDK, which will automatically instrument your application and send telemetry data to the Application Insights service. You can also use the Application Insights API to manually instrument your application, or you can use third-party tools that integrate with Application Insights.

14. How can I add usage analytics to my web app?

You can add usage analytics to your web app by using Azure Application Insights. This will allow you to track how your app is being used and get insights into how you can improve it.

15. What is the best way to start using Azure Application Insights in a .NET Core application running in Docker containers?

The best way to start using Azure Application Insights in a .NET Core application running in Docker containers is to use the Application Insights SDK for .NET Core. This SDK will allow you to instrument your application and send telemetry data to Azure.

16. What do you understand about sampling in Azure Application Insights?

Sampling is a process of reducing the amount of data that is collected from a population. This is often done in order to make the data more manageable, or to reduce the cost of collecting and storing the data. In Azure Application Insights, sampling is used in order to reduce the amount of data that is collected from a population of users. This is done in order to make the data more manageable, or to reduce the cost of collecting and storing the data.

17. How much does it cost to use Azure Application Insights?

The cost of using Azure Application Insights depends on the volume of data that is being collected and analyzed. There are three pricing tiers to choose from, and the cost increases as the amount of data collected increases. The first tier, which is the free tier, allows for up to 100 MB of data per day. The next tier, the standard tier, costs $5 per GB of data collected. The final tier, the premium tier, costs $15 per GB of data collected.

18. Can you give me an example where Azure Application Insights would help reduce time to resolve issues?

Azure Application Insights can help reduce time to resolve issues by providing detailed information about the performance of your application. This information can help you identify bottlenecks and optimize your code to improve performance. Additionally, Application Insights can provide information about errors and exceptions that occur in your application, which can help you quickly identify and fix problems.

19. What are examples of proactive performance analysis metrics provided by Application Insights?

Application Insights provides a number of proactive performance analysis metrics that can help you identify potential issues with your application before they cause problems. For example, Application Insights can track the number of requests per second, the average response time, and the number of failed requests. By monitoring these metrics, you can identify potential performance bottlenecks and take steps to address them before they cause problems for your users.

20. What are examples of reactive analysis metrics provided by Application Insights?

Reactive analysis metrics are those that help you understand how your users are interacting with your application in real time. Application Insights provides a number of reactive analysis metrics, including request volume, response time, and failure rate. These metrics can be used to identify issues with your application and take corrective action.