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

1. You are creating a Windows Communication Foundation (WCF) service by using Microsoft .NET Framework 3.5. You need to use a custom service host to host the WCF service in Windows Activation Services (WAS).
What should you do?

A) Add a reference to the custom service host in the web.config file.
B) Add code to instantiate the custom service host from within the main procedure of the WCF service.
C) Create a custom service host factory that instantiates the custom service host. Include a reference to this factory in the .svc file.
D) Write hosting code for the WCF service.

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

3. You are creating a Windows Communication Foundation service by using Microsoft .NET Framework 3.5. You write the following XML code fragment.

You need to add an endpoint definition to the service configuration for the URL http://localhost:8000/ServiceModelExam/service to expose the Contoso. Exams. lExam service contract. Which definition should you add?

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

4. You create a Windows Communication Foundation service by using Microsoft .NET Framework 3.5.
You write the following code segment.

You need to ensure that concurrent calls are allowed on the service instance.
Which code segment should you insert at line 07?

A) [ServiceBehavior(ConcurrencyMode=ConcurrencyMode.Multiple, ReleaseServiceInstanceOnTransactionComplete=true)]
B) [ServiceBehavior(ConcurrencyMode=ConcurrencyMode.Reentrant, ReleaseServiceInstanceOnTransactionComplete=true)]
C) [ServiceBehavior(ConcurrencyMode=ConcurrencyMode.Multiple, ReleaseServiceInstanceOnTransactionComplete=false)]
D) [ServiceBehavior(ConcurrencyMode=ConcurrencyMode.Reentrant, ReleaseServiceInstanceOnTransactionComplete=false)]

5. You are creating a distributed application by using Microsoft .NET Framework 3.5. You use Windows Communication Foundation (WCF) to create the application.
The distributed application contains client applications and a WCF service.
The client applications send e-mail address claims to the WCF service. The custom authorization manager of the service examines whether the claims are of the type "http://contoso.com/ClaimTypes/UserStatus".
You write the following code segment. (Line numbers are included for reference only.)

You need to map the claim types that are provided by the client applications to the claim
types that are expected by the custom authorization manager of the service. Which code segment should you insert at line 14?

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

Solutions: