Printable 70-487 Exam Dumps 2021

NEW QUESTION 1
You are developing an application in Visual Studio 2012 to display student information. The application contains the following Entity Framework model.

The application contains a WCF data service named DirectoryService.svc.
You need to create a query expression to display all of the grades for students whose first name is "John"
How should you build the expression?

• A. http://localhost:54946/DirectoryService.svc/Students?$filter=FirstName eq 'John' &$expand=Grades
• B. http://localhost:54946/DirectoryService.svc/Students?$filter=FirstName eq 'John'/Grades
• C. http://localhost:54946/DirectoryService.svc/Students?$filter=FirstName = 'John' &$expand=Grades
• D. http://localhost:54946/DirectoryService.svc/Grades/Students?$filter=FirstName eq 'John'

Answer: A

NEW QUESTION 2
You are developing an ASP.NET MVC application. The application is an order processing system that uses the ADO.NET Entity Framework against a SQL Server database. It has a controller that loads a page that displays all orders along with customer information. Lazy loading has been disabled.
The Order class is shown below.

You need to return the orders and customer information in a single round trip to the database. Which code segment should you use?

• A. Option A
• B. Option B
• C. Option C
• D. Option D

Answer: A

NEW QUESTION 3
You are developing a .NET application that uses the HttpClient type to call an ASP.NET Web API application. The API call returns a list of customers in JSON format and logs the results. The URI for the API call is in a variable named address.
You need to make the API call without blocking. Which code segment should you use?

• A. Option A
• B. Option B
• C. Option C
• D. Option D

Answer: A

Explanation: Example:
// Create an HttpClient instance
11: HttpClient client = new HttpClient(); 12:
13: // Send a request asynchronously continue when complete 14: client.GetAsync(_address).ContinueWith(
15: (requestTask) =>
16: {
17: // Get HTTP response from completed task.
18: HttpResponseMessage response = requestTask.Result; 19:
20: // Check that response was successful or throw exception 21: response.EnsureSuccessStatusCode();
22:
23: // Read response asynchronously as JsonValue and write out top facts for each country
24: response.Content.ReadAsAsync<JsonArray>().ContinueWith(
25: (readTask) =>

NEW QUESTION 4
DRAG DROP
You are developing a self-hosted WCF service to display data about books. The solution contains a service named BookService that implements the IBookService interface.
You need to expose the metadata in the service host programmatically. You have the following code:

Which code segments should you include in Target 1, Target 2, Target 3, Target 4 and Target 5 to build the service host? (To answer, drag the appropriate code segments to the correct targets in the answer area. 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.)

Answer:

Explanation:

NEW QUESTION 5
You are developing an ASP.NET MVC application. The application has a page that searches for and displays an image stored in a database. Members of the EntityClient namespace are used to access an ADO.NET Entity Framework data model. Images and associated metadata are stored in a database table.
You need to run a query that returns only the image while minimizing the amount of data that is transmitted.
Which method of the EntityCommand type should you use?

• A. ExecuteScalar
• B. ExecuteDbDataReader
• C. ExecuteReader
• D. ExecuteNonQuery

Answer: A

Explanation: ExecuteScalar
Executes the command, and returns the first column of the first row in the result set. Additional columns or rows are ignored.

NEW QUESTION 6
You are designing an ASP.NET Web API application.
You need to select an HTTP verb to allow blog administrators to modify the text of a comment.
Which HTTP verb should you use?

• A. GET
• B. DELETE
• C. POST
• D. PUT

Answer: D

NEW QUESTION 7
DRAG DROP
You have two methods named F1 and F2. F2 takes a sting as a parameter.
You need to create a method named F3. F3 must retrieve a string value asynchronously. The string must call F2. During the asynchronous load of the string, F1 must run.
Which five code blocks should you use? Develop the solution by selecting and arranging the required code blocks in the correct order.
NOTE: You will not need all of the code blocks.

Answer:

Explanation: References: https://docs.microsoft.com/en-us/dotnet/csharp/programming- guide/concepts/async/

NEW QUESTION 8
You are developing an ASP.NET MVC application. The application is an order processing system that uses the ADO.NET Entity Framework against a SQL Server database. It has a controller that loads a page that displays customers. Customers are filtered on Country and, if provided, on CompanyName.
You have an Entity Framework context named db. The Customer class is shown below.

You need to execute a single deferred query to return the filtered list of customers. Which code segment should you use?

• A. Option A
• B. Option B
• C. Option C
• D. Option D

Answer: C

NEW QUESTION 9
You have a Microsoft Visual Studio project named Project1 that is deployed as an Azure web app. The Azure web app uses an Azure SQL Database.
You plan to deploy updates to the Azure web app by using a Web Deploy Package.
The password for the Azure SQL Database was changed since you first published the Azure web app.
You need to deploy the package by using Windows PowerShell.
Which file should you modify before running the PowerShell deployment script?

• A. WebApiConfig.cs from the App_Start folder
• B. IdentityConfig.cs from the App_Start folder
• C. App.config from the Web Application folder
• D. Project1-waws-dev.json from the Configurations folder

Answer: A

NEW QUESTION 10
You need to load flight information provided by Consolidated Messenger. What should you use?

• A. Office Open XML
• B. COM interop
• C. OleDbConnection and OleDbDataReader
• D. EntityConnection and EntityDataReader

Answer: C

NEW QUESTION 11
Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.
After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.
You have a web application in a Docker container image. You set the tag for the image as myapp. You plan to deploy the application to Azure Container Services.
You run the following commands. All commands complete successfully.

You need to ensure that the image can be run on an Azure Container Service cluster.
Solution: You run the following commands:

Does the solution meet the goal?

• A. Yes
• B. No

Answer: A

Explanation: First tag the image, and the push it into your private registry.
References: https://medium.com/@pjbgf/azure-kubernetes-service-aks-pulling-private- container-images-from-azure-container-registry-acr-9c3e0a0a13f2

NEW QUESTION 12
DRAG DROP
You have an application that uses an Entity Framework context. Lazy loading is disabled for the context. The application uses an Azure SQL Database named Students.
You need to retrieve the courses of a student who has an ID of 100. The solution must use lazy loading.
Which five code blocks should you use? Develop the solution by selecting and arranging the required code blocks in the correct order.
NOTE: You will not need all of the code blocks.

Answer:

Explanation: References: http://www.entityframeworktutorial.net/Querying-with-EDM.aspx

NEW QUESTION 13
DRAG DROP
You have a UI element library.
You need to build a NuGet package to integrate the library into your projects.
What should you do? (To answer, drag the appropriate code elements to the correct location or locations in the answer area. Each code element 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.)

Answer:

Explanation: Reference: Creating and Publishing a Package http://docs.nuget.org/create/creating-and-publishing-a-package

NEW QUESTION 14
Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.
After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.
You have a web application in a Docker container image. You set the tag for the image as myApp. You plan to deploy the application to Azure Container Services.
You run the following commands. All commands complete successfully.

You need to ensure that the image can be run on an Azure Container Service cluster.
Solution: You run the following commands:

Does the solution meet the goal?

• A. Yes
• B. No

Answer: B

Explanation: First tag the image, and the push it into your private registry.
References: https://medium.com/@pjbgf/azure-kubernetes-service-aks-pulling-private-container-images-from-azure-container-registry-acr-9c3e0a0a13f2

NEW QUESTION 15
HOTSPOT
You need to deploy the application to the Windows Azure production environment to meet the business requirements.
What should you do? (To answer, select the appropriate button in the answer area.)

Answer:

Explanation:

NEW QUESTION 16
DRAG DROP
You are developing a Windows Azure based web application that provides users the ability to rent training videos. The application is deployed to hosted services in Asia and Europe.
The web application must meet the following requirements:
Video files are large and must be able to be streamed.
Streaming videos requires low latency network connections.
Rental data contains structured information about the user and the video.
Rental permissions are checked every five seconds during video playback.
You need to recommend a storage architecture for the application.
What should you do? (To answer, drag the appropriate technologies to the correct location or locations in the answer area. Each technology 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.)

Answer:

Explanation:

NEW QUESTION 17
You need to regenerate the service proxies to include task-based asynchronous method signatures.
Which command should you use?

• A. aspnet_regiis.exe /t:code http://localhost:62965/UploadCallbackService.svc
• B. svcutil.exe /t:code http://localhost:62965/UploadCallbackService.svc
• C. aspnet_compiler.exe /t:code http://localhost:62965/UploadCallbackService.svc
• D. aspnet_regiis.exe /t:code http://localhost:62965/UploadService.svc
• E. svcutil.exe /t:code http://localhost:62965/UploadService.svc

Answer: B

Explanation:
http://msdn.microsoft.com/en-us/library/aa347733.aspx

NEW QUESTION 18
Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.
After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.
You develop a REST API that uses Node.js. The API will store data in Azure Cosmos DB. You plan to deploy the API to a new Azure App Services Web App. You create a new Web App by using the Azure portal.
The API must be deployed by using SFTP.
You need to provide the proper deployment credentials to deploy the API.
Solution: Download the. PublishSettings file and enter the username and password located in the file.
Does the solution meet the goal?

• A. Yes
• B. No

Answer: A

Explanation: Example:
# Get FTP publishing profile and query for publish URL and credentials
creds=($(az webapp deployment list-publishing-profiles --name $webappname --resource- group myResourceGroup
--query "[?contains(publishMethod, 'FTP')].[publishUrl,userName,userPWD]" --output tsv)) -- query "[?contains(publishMethod, 'FTP')].[publishUrl,userName,userPWD]" --output tsv))
References: https://docs.microsoft.com/en-us/azure/app-service/scripts/app-service-cli-deploy-ftp

NEW QUESTION 19
Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.
After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.
You have developed a .NET Standard Library. You need to produce a NuGet package.
Solution: Run the msbuild command with the publish target specified. Does the solution meet the goal?

• A. Yes
• B. No

Answer: B

Explanation: Package the component with the NuGet pack command.
References: https://docs.microsoft.com/en-us/nuget/guides/create-net-standard-packages-vs2015

NEW QUESTION 20
Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.
After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.
You need to ensure that testing, development, and end user access requirements are met.
Solution: Add Web App backend endpoints to Azure Traffic Manager and use weighted routing.
Does the solution meet the goal?

• A. Yes
• B. No

Answer: B

Explanation: Scenario: All testing must interact directly with the Web App backend. Automated testing of the solution is performed using a remote third-party testing solution.