AZ-400 Test 1

Question 1

You have a Contoso Azure DevOps organization and a Contoso Azure subscription with an Azure virtual machine scale set named VMSS1 that is setup for autoscaling.

You create a web app named Appl with Azure DevOps and deploy it to VMSS1. Appl is heavily utilized and has weekly usage patterns that change.

You must propose a technique for detecting an unusual increase in the number of unsuccessful requests to Appl. The solution must require the least amount of administrative effort.

What should your advice include?

Accepted Answer

the Smart Detection feature m Azure Application Insights

Answer

The Smart Detection feature in Azure Application Insights automatically identifies unusual performance patterns and failures in your application. It uses machine learning to learn the normal behavior of your application and proactively alerts you to significant deviations, such as an unusual increase in unsuccessful requests. This approach requires minimal administrative effort as it doesn't necessitate manual configuration of thresholds or complex alert rules.

Question 2

Your firm is developing a mobile app for Android and iOS devices.

All work items and release cycles are managed by your team using Azure DevOps.

You must propose a solution to complete the following tasks:

Gather crash reports in order to investigate the problem.

Make beta releases available to your testers.

Obtain customer input on new app functionality.

Accepted Answer

the Microsoft Test & Feedback extension

Answer

The Microsoft Test & Feedback extension (formerly Test Explorer) is a valuable tool within Azure DevOps for exploratory testing and gathering feedback. While it is primarily browser-based and doesn't directly handle mobile app distribution or crash reporting, it excels at collecting structured input from testers. Testers can provide feedback, including screenshots and annotations, on new app functionality, which can then be linked directly to Azure DevOps work items for tracking and investigation.

Question 3

On Azure App Service, you have a web app. Data is stored in an Azure SQL database by the web app.

When there are 10,000 simultaneous connections to the database, you must generate an alert. The solution must need the least amount of development time.

In the database's Diagnostics settings, which option should you choose?

What should your advice include?

Accepted Answer

Send to Log Analytics

Answer

To generate an alert for a specific condition like 10,000 simultaneous connections to an Azure SQL database with minimal development time, sending diagnostic logs to Log Analytics is the most efficient option. Once the database metrics and logs are streamed to a Log Analytics workspace, you can use Kusto Query Language (KQL) to define custom queries. These queries can then be used to create Azure Monitor alerts, triggering when the connection count exceeds the specified threshold.

Question 4

A team is currently working on a repository for handling all of the source code in Azure repositories. Due to the large number of feature requests, it is difficult to keep track of the changes to the master branch.

You must implement a technique that:
- Allows for the consolidation of all commit histories
- Merges all changes into a single commit
You make the decision to use a git fetch request.
Would this suffice as a solution?

Accepted Answer

Incorrect

Answer

No, `git fetch` alone would not suffice. `git fetch` only downloads changes from the remote repository to your local repository without integrating them into your current branch. To consolidate all commit histories and merge changes into a single commit, you would typically use `git rebase -i` to squash multiple commits into one, or perform a squash merge during a pull request, which is a different operation than a simple fetch.

Question 5

Your team is preparing an Azure DevOps environment. Several development environments will be created on Azure as part of the setup. To establish the various development environments, several Azure Resource Manager templates will be used. You must keep track of all control-plane events.

You decide to monitor all control-plane activity with Azure Storage Analytics.

Would this suffice as a solution?

Accepted Answer

Incorrect

Answer

No, Azure Storage Analytics would not suffice for monitoring control-plane events. Azure Storage Analytics is designed to monitor operations and access logs for Azure Storage accounts (e.g., blobs, queues, tables). Control-plane events, such as the creation, update, or deletion of Azure resources via Azure Resource Manager templates, are recorded in the Azure Activity Log. To monitor these events, you should configure Azure Monitor to collect and alert on data from the Activity Log.

AZ-400 Practice Test

AZ-400 Practice Test

AZ-400 Test 1