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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 service by using Microsoft .NET Framework 3.5. The metadata for the service is available at http://localhost:8080/MyService/mex.
The svcutil.exe tool generates the following two files from the metadata:
You need to ensure that the configuration file is merged with an existing app.config file.
Which command should you use?

A) Svcutil http: //localhost:8080/MyService/mex /out:Proxy.cs /mergeConfig
B) Svcutil http: //localhost:8080/MyService/mex /out:Proxy.cs /config:app.config /noconfig
C) Svcutil http: //localhost:8080/MyService/mex /out:Proxy.cs /config:app.config
D) Svcutil http: //localhost:8080/MyService/mex /out:Proxy.cs /config:app.config /mergeconfig

3. You are creating a Windows Communication Foundation service by using Microsoft .NET Framework 3.5. The service will be hosted in a managed Console application. You want to add endpoints to the service.
You need to ensure that all endpoints use the same base address.
Which code fragment should you use?

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

4. You are creating a Windows Communication Foundation service by using Microsoft .NET Framework 3.5. The service contains the following code segment.

You need to ensure that the service meets the following requirements:
Which code segment should you use to replace the existing code segment?

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

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

Solutions: