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Exam Code: 70-503
Exam Name: TS: Microsoft .NET Framework 3.5 C Windows Communication Foundation
Updated: Sep 02, 2026
Q & A: 270 Questions and Answers
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| Section | Objectives |
|---|---|
| Topic 1: Client Configuration and Communication | - Channel factories and proxy generation - Bindings and interoperability considerations - Creating and configuring WCF client applications |
| Topic 2: Security, Transactions and Reliability | - Transactions, concurrency and instance management - Configuring security (transport and message level) - Reliable messaging and error handling |
| Topic 3: Service Implementation and Hosting | - Implementing service contracts in C# using .NET Framework 3.5 - Configuring service behavior and metadata exposure - Hosting WCF services in managed applications, IIS and WAS |
| Topic 4: Windows Communication Foundation Fundamentals | - Bindings, endpoints, and host configuration - Service contracts, data contracts, and message contracts - Understanding WCF architecture and programming model |
Question 1
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 A
B. Option D
C. Option C
D. Option B
Question 2
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 07?
A. [ServiceBehavior(ReleaseServiceInstanceOnTransactionComplete= true. ConcurrencyMode=ConcurrencyMode.MultipleJ]
B. [ServiceBehavior(ReleaseServiceInstanceOnTransactionComplete= true. ConcurrencyMode=ConcurrencyMode.Multiple, TransactionAutoCompleteOnSessionClose=true)]
C. [ServiceBehavior(ReleaseServiceInstanceOnTransactionComplete= true. ConcurrencyMode=ConcurrencyMode.Single)]
D. [ServiceBehavior(ConcurrencyMode=ConcurrencyMode.Single, Transact ionAutoCompleteOnSess ionClose=true)]
Question 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 A
B. Option D
C. Option C
D. Option B
Question 4
You create a Windows Communication Foundation service by using Microsoft .NET Framework 3.5. The service contains the following code segment.
You need to create a service contract that meets the following requirements:
Which code segment should you use?
A. Option A
B. Option D
C. Option C
D. Option B
Question 5
You are creating a Windows Communication Foundation service by using Microsoft .NET Framework 3.5.
You need to ensure that the service logs only messages that do not conform to the message contract.
Which code fragment should you use?
A. Option A
B. Option D
C. Option C
D. Option B
Solutions:
| Question 1 Answer: C | Question 2 Answer: D | Question 3 Answer: D | Question 4 Answer: A | Question 5 Answer: D |
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