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Exam Code: 70-487
Exam Name: Developing Windows Azure and Web Services
Certification Provider: Microsoft
Corresponding Certifications: MCSD, MCSD: Web Applications

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QUESTION 81
Drag and Drop Question
You are developing an ASP.NET Web API for a home inventory management system.
You need to limit access to users with IP addresses based only in the United States.
You have the following code:
 
Which code segments should you include in Target 1 and Target 2 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.)
 
Answer:
 

QUESTION 82
Drag and Drop Question
You are developing an Internet-based ASP.NET Web API application that manages pet data.
You install an SSL certificate on the web server to encrypt calls to the API.
You create a class named PetAuthorization, which inherits from a type named AuthorizeAttribute, and implements the OnAuthorization() method.
You need to implement basic authentication for the API.
What should you do? (To answer, drag the appropriate words to the correct targets in the answer area. Words 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:
 

QUESTION 83
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

QUESTION 84
Drag and Drop Question
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:
 

QUESTION 85
You are developing an ASP.NET MVC application.
The application is a loan 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 loans along with rate information.
Lazy loading has been disabled.
The Loan class is shown below.
 
You need to return the loans and rate 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: C

QUESTION 86
You are developing a library management application that uses the ADO.NET Entity Framework against a SQL Server database.
The application has a method that returns check outs filtered by date.
The Book class is shown below.
 
You must filter the data on the SQL server before it is returned to the application server.
You need to return books checked out more recently than the entered date.
Which code segment should you use?
 

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

Answer: A
Explanation:
The difference is that IQueryable<T> is the interface that allows LINQ-to-SQL (LINQ.-to- anything really) to work. So if you further refine your query on an IQueryable<T>, that query will be executed in the database, if possible.
For the IEnumerable<T> case, it will be LINQ-to-object, meaning that all objects matching the original query will have to be loaded into memory from the database.

QUESTION 87
Hotspot Question
You are developing an ASP.NET MVC application.
It is ready for deployment to the production web server.
A local SQL Express .MDF file was used by the application during development
The deployment has the following requirements:
The deployment must merge the assemblies on the local machine with those on the host.
The deployment must publish the local database to the remote Microsoft SQL server.
You need to configure the web package settings for deployment.
Which settings should you use? (To answer, select the appropriate setting or settings in the answer area.)
 
Answer:
 

QUESTION 88
You are developing a Microsoft Azure web application.
The application will be deployed to 10 web role instances.
A minimum of 8 running instances is needed to meet scaling requirements.
You need to configure the application so that upgrades are performed as quickly as possible, but do not violate scaling requirements.
How many upgrade domains should you use?

A.    1
B.    2
C.    5
D.    10

Answer: C

QUESTION 89
Hotspot Question
You are supporting an application that uses the ADO.NET Entity Framework to query and access data.
The latest version of a tool will add new templates and wizards that will enhance developer productivity.
You need to update the tool.
Which Visual Studio 2012 menu item should you choose? (To answer, select the appropriate menu item in the answer area.)
 
Answer:
 

QUESTION 90
You are developing an ASP.NET MVC application that displays a report.
The report includes large images that are stored in a database.
Members of the EntityClient namespace are used to access the database through the ADO.NET Entity Framework data model.
You need to prevent memory exceptions while generating a report using the EntityDataRcader type.
Which CommandBehavior type should you use?

A.    FastForwardReadOnly
B.    SequentialAccess
C.    SingleResult
D.    SingleRow

Answer: B
Explanation:
SequentialAccess
Provides a way for the DataReader to handle rows that contain columns with large binary values. Rather than loading the entire row, SequentialAccess enables the DataReader to load data as a stream.

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