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Microsoft 070-503

070-503

Exam Code: 070-503

Exam Name: TS: Microsoft .NET Framework 3.5 C Windows Communication Foundation

Updated: Jun 01, 2026

Q&A Number: 270 Q&As

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

1. You create 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 instance is recycled when the transaction is complete. Which line of code should you insert at line 06?

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


2. You are creating a Windows Communication Foundation service by using Microsoft .NET Framework 3.5. You set the logKnownPii attribute to true for the only trace source in the app.config file. You discover that the personal identifiable information (PII) is not logged.
You need to ensure that the PII is logged.
What should you do?

A) Disable encryption of the AppSettings element in the web.config file.
B) Set the enableLoggingKnownPii attribute to true in the machine.config file.
C) Set the enableLoggingKnownPii attribute to true in the app.config file.
D) Set the logKnownPii attribute to true in the web.config file.


3. You are creating a Windows Communication Foundation client application by using Microsoft .NET Framework 3.5.
You need to inspect the parameters on the client application.
Which three actions should you perform? (Each correct answer presents part of the solution. Choose three.)

A) Insert a code segment that creates a behavior in the ICallContextlnitializer.BeforelnvokeO method.
B) Implement the ICIientMessagelnspector interface.
C) Implement the IParameterlnspector interface.
D) Implement the lEndpointBehavior behavior to add the parameter inspector to the Dispatcher. ClientOperation.Parameterlnspectors method.
E) Insert a behavior before you call the ClientBase.Open method.
F) Implement the lEndpointBehavior behavior to add the parameter inspector to the Dispatcher. DispatchOperation.Parameterlnspectors method.


4. You create a Windows Communication Foundation (WCF) application by using Microsoft Visual Studio 2008 and the .NET Framework 3.5. You create a WCF service by using the following code segment. (Line numbers are included for reference only.)
01 [ServiceContract]
02 public interface IContosoService
03 {
04 [OperationContract]
06 void ProcessTransaction();
07 }
09 public class ContosoService : IContosoService
10 {
11 public void ProcessTransaction() {
12 try {
13 BusinessComponent.ProcessTransaction();
14 }
15 catch (ApplicationException appEx) {
17 }
18 }
19 }
The BusinessComponent.ProcessTransaction method will only throw exceptions from the ApplicationException type. You plan to debug the WCF service. You need to ensure that the WCF service meets the following requirements:
Detailed exception information is provided to the client application. Subsequent calls can be issued to the service by using the same proxy intance after an exception is caught in the client application. What should you do?

A) Add the following code segment at line 08.
[ServiceBehavior(IncludeExceptionDetailInFaults=true)] Add the following code segment at
line 16. throw appEx;
B) Add the following code segment at line 05. [FaultContract(typeof(ApplicationException))]
Add the following code segment at line 16. throw new
FaultException<ApplicationException>(appEx);
C) Add the following code segment at line 08.
[ServiceBehavior(IncludeExceptionDetailInFaults=true)] Add the following code segment at
line 16. throw new FaultException<ApplicationException>(appEx);
D) Add the following code segment at line 05. [FaultContract(typeof(ApplicationException))]
Add the following
code segment at line 16. throw appEx;


5. You create a Windows Communication Foundation service by using Microsoft .NET Framework 3.5.
You write the following code segment. (Line numbers are included for reference only.)

The service must meet the following requirements:
You need to set the isolation level for the service.
Which line of code should you insert at line 04?

A) <ServiceBehavior( _ TransactionIsolationLevel:=IsolationLevel.Unspecified)> _
B) <ServiceBehavior( _ TransactionIsolationLevel:=IsolationLevel.Chaos)> _
C) <ServiceBehavior( _ TransactionIsolationLevel:=IsolationLevel.Snapshot)> _
D) <ServiceBehavior( _ TransactionIsolationLevel:=IsolationLevel.Serializable)> _


Solutions:

Question # 1
Answer: D
Question # 2
Answer: B
Question # 3
Answer: C,D,E
Question # 4
Answer: B
Question # 5
Answer: D

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