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Microsoft UPG:Transition MCPD.NET Frmwrk 3.5 Web Dev to 4 Web Dev Sample Questions:

1. You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to create a Windows Communication Foundation (WCF) Data Services service. You discover that when an application submits a PUT or DELETE request to the Data Services service, it receives an error. You need to ensure that the application can access the service. Which header and request type should you use in the application?

A) an X-HTTP-Method header as part of a POST request
B) an HTTP ContentType header as part of a POST request
C) an HTTP ContentType header as part of a GET request
D) an X-HTTP-Method header as part of a GET request

2. Four Windows Communication Foundation (WCF) services are hosted in Microsoft Internet Information
Services (IIS). No behavior configuration exists in the web.config file.
You need to configure the application so that every service and endpoint limits the number of concurrent
calls to 50 and the number of concurrent sessions to 25.
Which XML segment should you add to the system.serviceModel configuration section of the web.config
file?

A) <behaviors> <serviceBehaviors> <behavior name="ALL"> <serviceThrottling maxConcurrentCalls="50" maxConcurrentSessions="25"/> </behavior>
</serviceBehaviors>
</behaviors>
B) <behaviors> <serviceBehaviors> <behavior name="default"> <serviceThrottling maxConcurrentCalls="50" maxConcurrentSessions="25"/> </behavior>
</serviceBehaviors>
</behaviors>
C) <behaviors> <serviceBehaviors> <behavior name="*"> <serviceThrottling maxConcurrentCalls="50" maxConcurrentSessions="25"/> </behavior>
</serviceBehaviors>
</behaviors>
D) <behaviors> <serviceBehaviors> <behavior name=""> <serviceThrottling maxConcurrentCalls="50" maxConcurrentSessions="25"/> </behavior>
</serviceBehaviors>
</behaviors>

3. A WCF service code is implemented as follows. (Line numbers are included for reference only.)
For interactive and self-paced preparation of exam 70-513, try our practice exams.
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01 <ServiceContract()>
02 <ServiceBehavior(
03InstanceContextMode:=InstanceContextMode.Single)>
04Public Class CalculatorService
05
06 <OperationContract()>
07Public Function Calculate(ByVal op1 As Double,
08ByVal op As String, ByVal op2 As Double) As Double
...
24End Function
25
26End Class
You need to increase the rate by which clients get the required response from the service.
What are two possible ways to achieve this goal? (Each correct answer presents a complete solution.
Choose two.)

A) Change the service behavior to the following. <ServiceBehavior(InstanceContextMode:=InstanceContextMode.PerCall)>
B) Require the clients to use async operations when calling the service.
C) Change the service behavior to the following. <ServiceBehavior( InstanceContextMode:=InstanceContextMode.Single, ConcurrencyMode:=ConcurrencyMode.Multiple)>
D) Require the clients use threads, the Parallel Task Library, or other mechanism to issue service calls in parallel.

4. You use Microsoft Visual Studio 2010 and Microsoft ADO.NET Framework 4 to create an application. The application connects to a Microsoft SQL Server 2008 database. You use the ADO.NET LINQ to SQL model to retrieve data from the database. You use stored procedures to return multiple result sets. You need to ensure that the result sets are returned as strongly typed values. What should you do?

A) Apply the FunctionAttribute and ResultTypeAttribute to the stored procedure function. Use the GetResult <TElement> method to obtain an enumerator of the correct type.
B) Apply the ParameterAttribute to the stored procedure function. Use the GetResult <TElement> method to obtain an enumerator of the correct type.
C) Apply the ResultTypeAttribute to the stored procedure function and directly access the strongly typed object from the results collection.
D) Apply the FunctionAttribute and ParameterAttribute to the stored procedure function and directly access the strongly typed object from the results collection.

5. You are troubleshooting an ASP.NET Web application. System administrators have recently expanded your
web farm from one to two servers. Users are periodically reporting an error message about invalid view
state.
You need to fix the problem.
What should you do?

A) Set viewStateEncryptionMode to Auto in web.config on both servers.
B) Set the machineKey in machine.config to the same value on both servers.
C) Change the session state mode to SQL Server on both servers and ensure both servers use the same connection string.
D) Override the SavePageStateToPersistenceMedium and LoadPageStateFromPersistenceMedium methods in the page base class to serialize the view state to a local web server file.

Solutions: