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Microsoft 070-503 Exam Syllabus Topics:

Microsoft TS: Microsoft .NET Framework 3.5 C Windows Communication Foundation Sample Questions:

1. You are creating a Windows Communication Foundation service by using Microsoft .NET Framework 3.5. The service contains the following code segment.
<ServiceContract0> _ Public Interface IMyService
<OperationContract(lsOneWay:=True, _ Protectionl_evel:=Protectionl_evel.None)> _ <TransactionFlow(TransactionFlowOption.Allowed)> _ Sub DoSomethingQ End Interface
You need to ensure that the DoSomething operation can participate in transactions.
Which code segment should you use to replace the existing operation contract?

A) <OperationContract(_ Protectionl_evel:=Protectionl_evel.EncryptAndSign)> _ <TransactionFlow(TransactionFlowOption.NotAllowed)> _ Sub DoSomethingQ
B) <OperationContract(_ Protectionl_evel:=Protectionl_evel.None)> _ <TransactionFlow(TransactionFlowOption.Allowed)> _ Sub DoSomethingO
C) <OperationContract(lsOneWay:=True, _ Protectionl_evel:=Protectionl_evel.Sign)> _ <TransactionFlow(TransactionFlowOption.Mandatory)> _ Sub DoSomethingQ
D) <OperationContract(lsOneWay:=True,_ Protectionl_evel:=Protectionl_evel. EncryptAndSign)> _ <TransactionFlow(TransactionFlowOption.Allowed)> _ Sub DoSomethingQ

2. You create a client application by using Microsoft .NET Framework 3.5. The client application uses a Windows Communication Foundation (WCF) service. You plan to implement inspection handling on the client application and the WCF service. You need to add error handling to the WCF service. What should you do?

A) Modify the BeforeSendRequest method to catch the ReplyValidationFault exception. Replace the reply message with an explicit fault message.
B) Modify the AfterReceiveRequest method to catch the ReplyValidationFault exception. Replace the reply message with an explicit fault message.
C) Modify the AfterReceiveReply method to catch the ReplyValidationFault exception. Replace the reply message with an explicit fault message.
D) Modify the BeforeSendReply method to catch the ReplyValidationFault exception. Replace the reply message with an explicit fault message.

3. You are creating a Windows Communication Foundation application by using Microsoft .NET Framework 3.5.
You create a service that provides access to the intranet file server of your company. Users must be able to update and delete files from the server by using the service.
You write the following code segment.

You need to ensure that files can be updated or deleted only by users with the required privileges defined in the server's file system ACLs.
What should you do?

A) Define the service behavior in the following manner.
<serviceAuthorization impersonateCallerForAllOperat ions="true" />
Decorate the Delete and Update methods of the IFileServer interface by using the following
attribute.
<OperationBehavior(Impersonation:=ImpersonationOption.Alloraed)>
B) Define the service behavior in the following manner.
<serviceAuthorization impersonateCallerForAllOperations="false" />
Decorate the Delete and Update methods of the FileServer class by using the following
attribute.
< OperationBehavior(Impersonation : =ImpersonationOption. Required )> _
C) Define the service behavior in the following manner.
<serviceAuthorization impersonateCallerForAllOperations="true" />
D) Define the service behavior in the following manner.
<serviceAuthorization impersonateCallerForAllOperat ions="false" />
Decorate the Delete and Update methods of the IFileServer interface by using the following
attribute.
<OperationBehavior(Impersonation:=ImpersonationOption.Required)> _

4. You are creating a Windows Communication Foundation service by using Microsoft .NET Framework 3.5. The service has an operation contract named GetMessage.
You write the following code segment to implement the service. (Line numbers are included for reference only.)

You need to send the contents of the File.xml file to a client application by using the SOAP body.
Which code segment should you insert at line 07?

A) Option D
B) Option B
C) Option A
D) Option C

5. You create a stateless, thread-safe service by using Microsoft .NET Framework 3.5.
You use the Windows Communication Foundation model to create the service. Load testing reveals that the service does not scale above 1,000 concurrent users. You discover that each call to the service instantiates a new service instance. You also discover that these service instances are expensive to create. You need to ensure that 5,000 concurrent users can access the service.
Which code segment should you use?

A) <ServiceBehavior(_ InstanceContextMode:=lnstanceContextMode.PerCall, _ConcurrencyMode:=ConcurrencyMode.Multiple)> _
B) <ServiceBehavior(_
lnstanceContextMode:=lnstanceContextMode.Single, _ConcurrencyMode:=ConcurrencyMode.Reentrant)> _
C) <ServiceBehavior(_ InstanceContextMode:=lnstanceContextMode.PerCall, _ConcurrencyMode:=ConcurrencyMode.Reentrant)> _
D) <ServiceBehavior(_ lnstanceContextMode:=lnstanceContextMode.Single, _ConcurrencyMode:=ConcurrencyMode.Multiple)> _

Solutions: