[2020.6] Tips for successfully passing the Microsoft 70-487 exam

How do I successfully pass the Microsoft Web Applications 70-487 exam?
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Exam 70-487: Developing Microsoft Azure and Web Services: https://www.microsoft.com/en-us/learning/exam-70-487.aspx

Skills measured

This exam measures your ability to accomplish the technical tasks listed below.

  • Accessing Data (20-25%)
  • Querying and Manipulating Data by Using the Entity Framework (20-25%)
  • Creating and Consuming Web API-based services (20-25%)
  • Designing and Implementing Web Services (15-20%)
  • Deploying Web Applications and Services (15-20%)

Who should take this exam?

Candidates for this certification are professional developers that use Visual Studio 2017 and the Microsoft® .NET Core Framework to design and develop Web solutions. Candidates should have a minimum of three to five years of experience developing ASP.NET MVC-based solutions. Additionally, candidates should be able to demonstrate the following:

  • Experience designing and developing Web applications that access various (local and remote) data and services including Windows Azure
  • Experience with the full software development life cycle of data and service solutions
  • Experience developing and deploying to multi-tier environments, including Windows Azure
  • Experience designing and developing asynchronous solutions
  • Experience creating and consuming HTTP services

Latest Updates Microsoft 70-487 Exam Practice Questions and Answers

QUESTION 1

DRAG DROP
The service has been deployed to Windows Azure.
Trey Research has provided version 1.3.0.0 of the assembly to support a change in the serialization format. The service
must remain available during the transition to the new serialization format.
You need to ensure that the service is using the new assembly.
Which configuration setting should you add to the web.config? (To answer, drag the appropriate configuration elements
to the correct location or locations in the answer area. Each configuration 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.)
Select and Place:

exampdfdownload 70-487 q1

Correct Answer:

exampdfdownload 70-487 q1-1

QUESTION 2

You are developing an ASP.NET MVC Web API application.
The methods of the Web API must return details about the result of the operation. You need to create a method to add
products.
You have the following code:

exampdfdownload 70-487 q2

Which code segments should you include in Target 1, Target 2, Target 3, Target 4 and Target 5 to complete the code?
{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.)
Select and Place:

exampdfdownload 70-487 q2-1

QUESTION 3

You are developing an ASP.NET Core web application by using an Entity Framework code-first approach. The
application uses an SQLite database. You make changes to the classes in the model. You must apply the changes to
the
database.
You need to suggest an approach to reliably handle the Entity Framework migrations.
Which three actions should you perform? Each correct answer presents a part of the solution.
NOTE: Each correct selection is worth one point.
A. Modify the scaffolded migration script to drop the modified tables.
B. Run the following command: dotnet ef database update
C. Modify the scaffolded migration script to create new tables with the migration changes.
D. Modify the scaffolded migration script to drop the existing database and create the new database.
E. Run the following command: dotnet ef migrations add

Correct Answer: CDE

E: Run dotnet ef migrations add InitialCreate to scaffold a migration and create the initial set of tables for the model.
C: You can work around some of the SQLite limitations by manually writing code in your migrations to perform a table
rebuild. A table rebuild involves renaming the existing table, creating a new table, copying data to the new table, and
dropping the old table.
D: SQLite does not support all migrations (schema changes) due to limitations in SQLite. For new development,
consider dropping the database and creating a new one rather than using migrations when your model changes.

References: https://docs.microsoft.com/en-us/ef/core/get-started/netcore/new-db-sqlite https://docs.microsoft.com/enus/ef/core/providers/sqlite/limitations

QUESTION 4

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 on 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

Correct Answer: B

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.

QUESTION 5

You have a Windows Communication Foundation (WCF) service named Service1.
You deploy the WCF service at the root level of a website in Azure. The address of the Azure website is
http://service1.azurewebsites.net/.
You need to generate a .cs file that can be used to interact with Service1.
What command should you run? To answer, select the appropriate options in the answer area.
Hot Area:

exampdfdownload 70-487 q5

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 on 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 Event Hubs Capture to deliver data to Azure Blob storage.
Does the solution meet the goal?
A. Yes
B. No

Correct Answer: A

Azure Event Hubs Capture enables you to automatically deliver the streaming data in Event Hubs to an Azure Blob
storage or Azure Data Lake Store account of your choice, with the added flexibility of specifying a time or size interval.
References: https://docs.microsoft.com/en-us/azure/event-hubs/event-hubs-capture-overview

QUESTION 7

You need to ensure that computed events are processed correctly. What should you do?
A. Move the WebJob to a different App Service plan.
B. Select a deployment slot for the WebJob.
C. Disable WebJobs during deployments.
D. Create an additional upgrade domain.

Correct Answer: B

Scenario: An Azure WebJob named EventJob will be deployed with the Event Service Web App. The WebJob:
1.
Creates new computed events when partner events are created.
2.
Must be active whenever the Event Service is running.
3.
Is updated once a quarter.
References: https://stackify.com/azure-deployment-slots/

QUESTION 8

DRAG DROP The GetVendorPolicy() private method in the ProcessedOrderController controller is returning a
CacheItemPolicy object with default values. The returned policy must expire if the external file located at
C:\Triggers\VendorTrigger.txt has been modified or the timeout outlined in the technical requirements is reached.
You need to return the policy.
You have the following code:

exampdfdownload 70-487 q8

Which code segments should you include in Target 1, Target 2 and Target 3 to build the method? (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.)
Select and Place:

exampdfdownload 70-487 q8-1

Correct Answer:

exampdfdownload 70-487 q8-2

QUESTION 9

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

Correct Answer: C

QUESTION 10

DRAG DROP
You need to configure settings to identify regional outages.
Which values should you use? To answer, drag the appropriate values to the correct settings. Each value may be used
once, more than once, or mot 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.
Select and Place:

exampdfdownload 70-487 q10

Box 1, Probing interval: 10 Probing Interval. This value specifies how often an endpoint is checked for its health from a
Traffic Manager probing agent. You can specify two values here: 30 seconds (normal probing) and 10 seconds (fast
probing). If no values are provided, the profile sets to a default value of 30 seconds.
Box 2: Tolerated Number of Failures: 3 Tolerated Number of Failures. This value specifies how many failures a Traffic
The manager probing agent tolerates before marking that endpoint as unhealthy. Its value can range between 0 and 9. A
value of 0 means a single monitoring failure can cause that endpoint to be marked as unhealthy. If no value is specified,
it uses the default value of 3.
Scenario: Regional access to the Event Service API
Data for partners in Germany and Brazil must be served from Azure datacenters in their respective geographies unless
there is a regional Azure outage. All other partners must use the US West Azure datacenter.
The solution will be highly available. You define regional Azure outages as periods of 60 seconds or more where the
Event Service is not available.
References: https://docs.microsoft.com/en-us/azure/traffic-manager/traffic-manager-monitoring

QUESTION 11

You are developing an ASP.NET Core MVC web application that processes sensitive data.
Users in an Azure Active Directory (Azure AD) group named DataAdmins must be able to see all data in a human-readable form. Sensitive data must be masked from all other users that handle the data store.
You need to implement storage for the application.
What should you implement?
A. Azure SQL Database
B. Azure Cosmos DB
C. Azure Database for MySQL
D. Azure Database for PostgreSQL
E. Azure Storage Tables

Correct Answer: E

References: https://docs.microsoft.com/en-us/aspnet/core/security/authentication/identity-custom-storageproviders?view=aspnetcore-2.2

QUESTION 12

DRAG DROP
You need to update the GetBook() method to retrieve book data by using ADO.NET.
You have the following code:

exampdfdownload 70-487 q12

Which code segments should you include in Target 1, Target 2, Target 3, Target 4, and Target 5 to complete this code?
(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.)
Select and Place:

exampdfdownload 70-487 q12-1

Correct Answer:

exampdfdownload 70-487 q12-2

QUESTION 13

You need to identify a solution to display the car brands. What should you include in the solution?
A. Azure Automation
B. Azure RemoteApp
C. the Service Bus queue
D. a virtual private network (VPN)
E. the Service Bus topics
F. the Service Bus relay
G. ExpressRoute

Correct Answer: C

Azure Service Bus Messaging can safely use the QueueClient object for sending messages from concurrent
asynchronous operations and multiple threads. Scenario: The action in the Web API that returns the car brand must be
asynchronous, while all other actions must be synchronous.
References: https://docs.microsoft.com/en-us/azure/service-bus-messaging/service-busperformance-improvements

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