Microsoft 70-487 Dumps Questions 2021

NEW QUESTION 1
DRAG DROP
ReportApp will shut down every night. However, data from the searches performed during the night must still be collected.
You need to identify the return types for the car year, price, brand and model. The solution must minimize the number of round trips between the clients and the web servers.
What should you identify? To answer, drag the appropriate return types to the correct objects. Each return type 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: Note: A round trip occurs when an object is deserialized and re-serialized in one operation.
From scenario: The application will provide users with the ability to search for a car by using advanced filtering options, such as the car brand, model, year, and price. All of this information will be stored as strings and will be displayed as drop-down lists.
The brand and model lists that will be displayed on the home page of the web application will be retrieved from Windows Communication Foundation (WCF) services hosted in the on- premises environment.
Target 1: Task<String>
Though Performance blocking and Sluggishness are the tailbacks for any application, we can easily overcome these bottlenecks by using asynchronous programming. But old-style practice for asynchronous programming is not way easy enou
Target 2: Task<String>
Target 3: String
Target 4: String
References: https://rashimuddin.wordpress.com/2013/05/07/task-based-asynchronous- operation-in-wcf/

NEW QUESTION 2
You are developing an ASP.NET Core web application by using an Entity Framework code-first approach. The application uses an Azure SQL Database. The code-first migration is configured to run as part of a continuous integration build.
You must add an Azure MySQL Database. This database must use the same schema as the existing Azure SQL Database instance.
You need to configure the migration to ensure that the existing TFS build definition remains unchanged.
What are two possible ways to achieve this goal? Each correct answer presents a complete solution.
NOTE: Each correct selection is worth one point.

• A. Use the ActiveProvider property to specify the provider to which the migration is applied.
• B. Create a new type that derives from DbContext and override the ActiveProvider objec
• C. Then, add or apply migrations using this type.
• D. Use the Entity Framework Core Fluent API to identify database providers.
• E. Create a separate Migration Assembly than the one containing the DbContext and switchthe active provider during build.

Answer: BC

Explanation: References:
https://medium.com/@rc_dos_santos/how-configure-asp-net-core-web-api-project-with-mysql-database-b7a64a247a99

NEW QUESTION 3
DRAG DROP
You are developing a WCF service.
The WCF service requires implementations of the new data contracts to validate against the old schem a.
You need to develop a new data contract without breaking current functionality.
What should you do? (To answer, drag the appropriate code segments to the correct location or locations 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 4
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 5
The PurchaseOrders.xml file contains all of the purchase orders for the day. You need to query the XML file for all of the billing addresses.
Which code segment should you use?

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

Answer: D

NEW QUESTION 6
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 deploy an ASP.NET Core web application to Azure App Services. You are using Azure Event Hubs to collect the telemetry data for the application.
You need to configure Event Hubs to automatically deliver the telemetry data stream to a persistent data store.
Solution: Configure Azure Event Hubs Capture to deliver data to Azure File Service. Does the solution meet the goal?

• A. Yes
• B. No

Answer: B

Explanation: Use Azure Blob storage to store the telemetry data.
References: https://docs.microsoft.com/en-us/azure/event-hubs/event-hubs-capture- overview

NEW QUESTION 7
You are developing a WCF service. You need to create a duplex contract.
What should you do? (Each correct answer presents part of the solution. Choose all that apply.)

• A. Apply the MessageContractAttribute attribute to every public method signature included in the appropriate contract.
• B. Create an interface for the client-side duplex contract.
• C. Create an interface for the server-side duplex contract.
• D. Apply the MessageContractAttribute attribute to the appropriate interface.
• E. Apply the ServiceContractAttribute attribute to the appropriate interfac
• F. Then, apply the OperationContractAttribute attribute to every public method signature included in that contract.
• G. Set the CallbackContract property to the appropriate interface.

Answer: CEF

Explanation: To create a duplex contract
(C) Create the interface that makes up the server side of the duplex contract.
(E) Apply the ServiceContractAttribute class to the interface.
Declare the method signatures in the interface.
(E) Apply the OperationContractAttribute class to each method signature that must be part of the public contract.
Create the callback interface that defines the set of operations that the service can invoke on the client.
Declare the method signatures in the callback interface.
Apply the OperationContractAttribute class to each method signature that must be part of the public contract.
(F) Link the two interfaces into a duplex contract by setting the CallbackContract property in the primary interface to the type of the callback interface.
Reference: How to: Create a Duplex Contract

NEW QUESTION 8
DRAG DROP
You are developing a WCF service.
You need to configure the web.config file to ensure that metadata is exposed only via the MEX protocol.
You have the following markup:

Which XML elements should you include in Target 1, Target 2, Target 3 and Target 4 to
complete the markup? (To answer, drag the appropriate XML elements to the correct targets in the answer area. Each XML 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:

NEW QUESTION 9
DRAG DROP
You are developing a WCF service.
You need to implement transport security by using NTLM authentication and NetTcpBindings.
Which configuration values should you use? (To answer, drag the appropriate configuration values to the correct location or locations in the answer area. Each configuration value 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 10
You need to perform the initial deployment of the web application. You must ensure that the application meets the performance requirements.
Which file should you modify before you deploy the application?

• A. the service definition file (.csdef)
• B. the application configuration file (app.config)
• C. the packages configuration file (packages.config)
• D. the Global.asax file (.asax)

Answer: A

Explanation: You use cscfg file to define various settings related to your cloud application (in ConfigurationSettings section). Like app.config file, you get to define other things (e.g.number of instances of your cloud application) in the cscfg file. You could change the settings in a cscfg file on the fly using either the portal or Service Management API without having to repackage and redeploy the application.
Scenario: After the initial deployment, any changes to the business logic of the Web API must cause minimal downtime to the web application in the production environment.

NEW QUESTION 11
DRAG DROP
You are creating a WCF service.
The service endpoints must be exposed to the Windows Azure Service Bus. The service bus has a namespace named RestaurantSB. The key provider is "owner".
You need to modify the web.config file to expose the endpoints.
How should you modify the file? (To answer, drag the appropriate attributes to the correct location or locations in the answer area. Each attribute 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 12
The GetExternalOrder() method in the ExternalQueueService service is throwing a runtime error. The method must query the database for a record that matches the orderNum parameter passed to the method.
You need to modify the queryString string to retrieve the record. With which code segment should you replace line EQ64?

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

Answer: C

NEW QUESTION 13
DRAG DROP
You need to add code at line SU10 to ensure that event validation can occur.
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 split bar between panes or scroll to view content.
NOTE: Each correct selection is worth one point.

Answer:

Explanation:

Case Study: 6 Mix Questions

NEW QUESTION 14
DRAG DROP
You need to parse flight information from Blue Yonder Airlines. The content of the XML file is shown below.

Some airlines do not specify the timezone of the arrival time. If the timezone is not specified, then it should be interpreted per the business requirements.
You need to implement the LoadFlights() and Parse() methods of the BlueYonderLoader class.
What should you do? (To answer, drag the appropriate code segments to the correct location in the answer area. Each 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 15
DRAG DROP
You are developing a web application that uses the Entity Framework.
You plan to use the table-per-type mapping strategy to store the following dat a.

You need to implement a mapping strategy that will store the data.
How should you complete the code? To answer, drag the appropriate methods to the correct locations. Each method 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: References:
https://msdn.microsoft.com/en-us/library/system.data.entity.dbcontext.onmodelcreating%28v=vs.113%29.aspx
https://msdn.microsoft.com/en-us/library/jj591617(v=vs.113).aspx#Model Used in Samples

NEW QUESTION 16
You are preparing to write the data access code for the children’s book area of the web site. You need to review the requirements and identify the appropriate data access technology. What should you do?

• A. Use ADO.NET Entity Framework.
• B. Use a Web Service.
• C. Use the WCF Data Services.
• D. Use LINQ to SQL.

Answer: A

NEW QUESTION 17
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 18
You are developing an ASP.NET MVC application.
Deployment administrators do not have access to Visual Studio 2102, but will have the elevated permissions required to deploy the application to the servers.
You need to select a deployment tool for use by the deployment administrators. Which tool should you use?

• A. Publish Web Site Tool
• B. Web Deployment Package
• C. One-Click Publish
• D. Deployment Package Editor

Answer: B

NEW QUESTION 19
You need to return the list of the top 100 books for the GetTopBooks() method. Which type should you use to retrieve the data?

• A. SqlDataReader
• B. DataSet
• C. DataTable
• D. Data View

Answer: A