ASP.NET Core API app by using C#. The API app will allow users to authenticate by using Twitter and Azure Active Directory (Azure AD).
Users must be authenticated before calling API methods. You must log the user's name for each method call.
You need to configure the API method calls.
Which values should you use? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.

Correct Answer:

Reference:
https://docs.microsoft.com/en-us/azure/app-service/app-service-authentication-how-to

Comment: *

Name: *

Email: *

Verification: *

You are developing an ASP.NET Core Web API web service that uses Azure Application Insights to monitor performance and track events.
You need to enable logging and ensure that log messages can be correlated to events tracked by Application Insights.
How should you complete the code? To answer, drag the appropriate code segments to the correct locations. Each code segment may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.
NOTE: Each correct selection is worth one point.

Correct Answer:

Reference:
https://blog.computedcloud.com/enabling-application-insights-trace-logging-in-asp-net-core/

Comment: *

Name: *

Email: *

Verification: *

You are developing a web application that makes calls to the Microsoft Graph API. You register the application in the Azure portal and upload a valid X509 certificate.
You create an appsettings.json file containing the certificate name, client identifier for the application, and the tenant identifier of the Azure active Directory (Azure AD). You create a method named ReadCertificate to return the X509 certificate by name.
You need to implement code that acquires a token by using the certificate.
How should you complete the code segment? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.

Correct Answer:

Explanation:

https://docs.microsoft.com/en-us/azure/active-directory/develop/scenario-daemon-app-configuration?
tabs=dotnet#instantiate-the-confidential-client-application-with-a-client-certificate
https://docs.microsoft.com/en-us/azure/active-directory/develop/scenario-daemon-acquire-token?
tabs=dotnet#acquiretokenforclient-api

Comment: *

Name: *

Email: *

Verification: *

Contoso, Ltd. provides an API to customers by using Azure API Management (APIM). The API authorizes users with a JWT token.
You must implement response caching for the APIM gateway. The caching mechanism must detect the user ID of the client that accesses data for a given location and cache the response for that user ID.
You need to add the following policies to the policies file:
* a set-variable policy to store the detected user identity
* a cache-lookup-value policy
* a cache-store-value policy
* a find-and-replace policy to update the response body with the user profile information To which policy section should you add the policies? To answer, drag the appropriate sections to the correct policies. Each section may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content NOTE: Each correct selection is worth one point

Correct Answer:

Explanation

Box 1: Inbound.
A set-variable policy to store the detected user identity.
Example:
<policies>
<inbound>
<!-- How you determine user identity is application dependent -->
<set-variable
name="enduserid"
value="@(context.Request.Headers.GetValueOrDefault("Authorization","").Split(' ')[1].AsJwt()?.Subject)" /> Box 2: Inbound A cache-lookup-value policy Example:
<inbound>
<base />
<cache-lookup vary-by-developer="true | false" vary-by-developer-groups="true | false" downstream-caching-type="none | private | public" must-revalidate="true | false">
<vary-by-query-parameter>parameter name</vary-by-query-parameter> <!-- optional, can repeated several times -->
</cache-lookup>
</inbound>
Box 3: Outbound
A cache-store-value policy.
Example:
<outbound>
<base />
<cache-store duration="3600" />
</outbound>
Box 4: Outbound
A find-and-replace policy to update the response body with the user profile information.
Example:
<outbound>
<!-- Update response body with user profile-->
<find-and-replace
from='"$userprofile$"'
to="@((string)context.Variables["userprofile"])" />
<base />
</outbound>
Reference:
https://docs.microsoft.com/en-us/azure/api-management/api-management-caching-policies
https://docs.microsoft.com/en-us/azure/api-management/api-management-sample-cache-by-key

Comment: *

Name: *

Email: *

Verification: *

Drag and Drop Question
You are developing a software solution for an autonomous transportation system. The solution uses large data sets and Azure Batch processing to simulate navigation sets for entire fleets of vehicles.
You need to create compute nodes for the solution on Azure Batch.
What should you do?

Correct Answer:

Explanation:
With .NET:
Step 1: In the Azure portal, create a Batch account.
First we create a batch account.
Step 2: In a .NET method, call the method: BatchClient.PoolOperations.CreatePool Now that you have a Batch account, create a sample pool of Windows compute nodes for test purposes. To create a Batch pool, the app uses the BatchClient.PoolOperations.CreatePool method to set the number of nodes, VM size, and a pool configuration.
Step 3: In a .NET method, call the method: BatchClient.PoolOperations.CreateJob Now that you have a pool, create a job to run on it. A Batch job is a logical group for one or more tasks. A job includes settings common to the tasks, such as priority and the pool to run tasks on. Initially the job has no tasks. The app uses the BatchClient.JobOperations.CreateJob method to create a job on your pool.
Step 4: In a .NET method, call the method: batchClient.JobOperations.AddTask Now create sample tasks to run in the job. Typically you create multiple tasks that Batch queues and distributes to run on the compute nodes. The app adds tasks to the job with the AddTask method, which queues them to run on the compute nodes.
For example: batchClient.JobOperations.AddTask(JobId, tasks);
References:
https://docs.microsoft.com/en-us/azure/batch/quick-create-portal
https://docs.microsoft.com/en-us/azure/batch/quick-run-dotnet

Comment: *

Name: *

Email: *

Verification: *