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Microsoft TS: Microsoft .NET Framework 3.5 C Windows Communication Foundation Sample Questions:
1. You are creating a distributed application by using Microsoft .NET Framework 3.5. You use Windows Communication Foundation to create the application. You plan to perform the following tasks:
You write the following code segment.
You need to ensure that only those client applications that provide credentials belonging to the AdminGroup role can access the Remove method. What should you do?
A) Add the following attribute to the Service class. [PrincipalPermission(SecurityAction.Demand, Name="Remove", Role="AdminGroup")]
B) Add the following attribute to the Remove method of the Service class. [PrincipalPermission(SecurityAction. Demand, Role="AdminGroup")]
C) Add the following attribute to the Service class. [PrincipalPermission(SecurityAction. Demand, Name="IService. Remove", Role="AdminGroup")]
D) Add the following attribute to the Remove method of the IService interface. [PrincipalPermission(SecurityAction. Demand, Role="AdminGroup")]
2. You create a Windows Communication Foundation (WCF) service by using Microsoft .NET Framework 3.5. Client applications that run on different platforms access the WCF service.
These applications transmit confidential data to the WCF service. You write the following binding configuration.
....
<binding name="TransportSecurity" >
<security mode="Transport" />
</binding>
...
You need to configure the service for optimum interoperability and optimum security.
Which code fragment should you use?
A) Option D
B) Option C
C) Option A
D) Option B
3. You are creating a Windows Communication Foundation service by using Microsoft .NET Framework 3.5.
The client application and the server application authenticate by using certificates. You need to implement message-level security.
Which configuration settings should you use?
A) Option D
B) Option C
C) Option A
D) Option B
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.Reentrant, ReleaseServiceInstanceOnTransactionComplete=false)]
B) [ServiceBehavior(ConcurrencyMode=ConcurrencyMode.Multiple, ReleaseServiceInstanceOnTransactionComplete=false)]
C) [ServiceBehavior(ConcurrencyMode=ConcurrencyMode.Multiple, ReleaseServiceInstanceOnTransactionComplete=true)]
D) [ServiceBehavior(ConcurrencyMode=ConcurrencyMode.Reentrant, ReleaseServiceInstanceOnTransactionComplete=true)]
5. You are creating a Windows Communication Foundation service by using Microsoft .NET Framework 3.5.
You write the following code segment to create a service contract. (Line numbers are included for reference only.)
You need to ensure that the client applications always use a binding that supports sessions.
Which code segment should you insert at line 01?
A) <ServiceContract(SessionMode:=SessionMode.Required)>
B) <ServiceContract(SessionMode:=SessionMode.Allowed)> __
C) <ServiceContract(ProtectionLevel:=ProtectionLevel.EncryptAndSign)> __
D) <ServiceContract(ProtectionLevel:=ProtectionLevel._ EncryptAndSign,SessionMode:=SessionMode.Allowed)> __
Solutions:
Question # 1 Answer: B | Question # 2 Answer: B | Question # 3 Answer: D | Question # 4 Answer: B | Question # 5 Answer: A |