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Microsoft 70-503

70-503

Exam Code: 70-503

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

Updated: Sep 17, 2026

Q&A Number: 270 Q&As

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Microsoft 70-503 Exam Syllabus Topics:

SectionObjectives
Topic 1: Client Configuration and Consumption- Service consumption
  • 1. Adding service references
    • 2. Generating proxies
      - Client configuration
      • 1. Endpoint configuration
        • 2. Handling faults and exceptions
          Topic 2: Designing and Developing WCF Services- Service implementation
          • 1. Implement service classes
            • 2. Handle concurrency and instancing modes
              - Service contracts and data contracts
              • 1. Design data contracts using DataContract and DataMember
                • 2. Define service contracts using ServiceContract and OperationContract
                  Topic 3: WCF Bindings and Messaging- Message patterns
                  • 1. One-way and duplex communication
                    • 2. Request-reply
                      - Bindings
                      • 1. BasicHttpBinding, WSHttpBinding, NetTcpBinding
                        • 2. Custom bindings
                          Topic 4: Security in WCF Services- Secure communication
                          • 1. Certificates and encryption
                            • 2. Protection levels and security modes
                              - Authentication and authorization
                              • 1. Windows authentication
                                • 2. Message and transport security
                                  Topic 5: Configuring and Hosting WCF Services- Hosting environments
                                  • 1. Self-hosting services
                                    • 2. IIS hosting
                                      • 3. Windows Activation Service (WAS)
                                        - Service configuration
                                        • 1. Configuration via app.config/web.config
                                          • 2. Endpoints, bindings, and behaviors

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

                                            Question #1
                                            You are creating a distributed application by using Microsoft .NET Framework 3.5.
                                            The application uses the Windows Communication Foundation model.
                                            You need to ensure that the following requirements are met:
                                            What are two possible ways to achieve this goal? (Each correct answer presents a complete solution. Choose two.)

                                            A. Option A
                                            B. Option C
                                            C. Option D
                                            D. Option B


                                            Question #2
                                            You are creating a Windows Communication Foundation service by using Microsoft .NET Framework 3.5. You create the following service contract.

                                            You need to ensure that the DoSomething operation is executed by a single thread at a time.
                                            What are two possible service implementations you should use to achieve this goal? (Each correct answer presents a complete solution. Choose two.)

                                            A. Option A
                                            B. Option C
                                            C. Option D
                                            D. Option B


                                            Question #3
                                            You create a Windows Communication Foundation service by using Microsoft .NET Framework 3.5.
                                            The service receives automation commands for a factory robot.
                                            You need to ensure that the robot receives the commands in the same order as they are transmitted.
                                            Which binding element should you use?

                                            A. <reliableSession/>
                                            B. <compositeDuplex/>
                                            C. <security/>
                                            D. <transactionFlow/>


                                            Question #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 when the MyMethod method is called, the service is the root of a transaction.
                                            Which code segment should you insert at line 08?

                                            A. <OperationBehavior(TransactionScopeRequired:=True)> _ <TransactionFlow(TransactionFlowOption.Allowed)> _
                                            B. <OperationBehavior(TransactionScopeRequired:=False)> _ <TransactionFlow(TransactionFlowOption.Mandatory)> _
                                            C. <OperationBehavior(TransactionScopeRequired:=False)> _ <TransactionFlow(TransactionFlowOption.NotAllowed)> _
                                            D. <OperationBehavior(TransactionScopeRequired:=True)> _ <TransactionFlow(TransactionFlowOption.NotAllowed)> _


                                            Question #5
                                            You create a client application by using Microsoft .NET Framework 3.5. The client application uses a Windows Communication Foundation (WCF) service.
                                            The WCF service reads the value of the incoming message headers by using the following code segment.

                                            The following code fragment is a part of the application configuration file. (Line numbers are included for reference only.)

                                            The client application adds a message header each time it calls the WCF service.
                                            You need to ensure that the message header provides the following values to its parameters.

                                            Which code fragment should you insert at line 04?

                                            A. Option A
                                            B. Option C
                                            C. Option D
                                            D. Option B


                                            Solutions:

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

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