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Microsoft 070-513 Exam Syllabus Topics:

Microsoft TS: Windows Communication Foundation velopment with Microsoft .NET Framework 4 Sample Questions:

Question 1

A Windows Communication Foundation (WCF) service has a callback contract. You are developing a client application that will call this service.
You must ensure that the client application can interact with the WCF service.
What should you do?

A. On the client, create a proxy derived from DuplexClientBase<TChannel>.
B. On the OperationContractAttribute, set the ReplyAction property value to the endpoint address of the client.
C. On the client, use GetCallbackChannel<T>.
D. On the OperationContractAttribute, set the AsyncPattern property value to true.

Question 2

You develop a Windows Communication Foundation (WCF) service that contains the following code segment. (Line numbers are included for reference only.)

You need to ensure that all service endpoints are available to client applications. Which code segment should you insert at line 04?

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

Question 3

A Windows Communication Foundation (WCF) service is responsible for transmitting XML documents between systems.
The service has the following requirements:
- It must minimize the transmission size by attaching the XML document as is without using escape characters or base64 encoding. - It must interoperate with systems that use SOAP but are not built on the .NET platform.
You need to configure the service to support these requirements.
Which message encoding should you use?

A. Binary message encoding
B. MTOM (Message Transmission Optimization Mechanism) message encoding
C. Text message encoding with message version set to none
D. Text message encoding with message version set to SOAP 1.2

Question 4

You are modifying an existing Windows Communication Foundation (WCF) service that is defined as follows.

SubmitOrder makes a call to another service. The ProcessMessage method does not perform as expected under a heavy load.
You need to enable processing of multiple messages. New messages must only be processed when the ProcessMessage method is not processing requests, or when it is waiting for calls to SubmitOrder to return.
Which attribute should you apply to the MessageProcessor class?

A. ServiceBehavior ( ConcurrencyMode = ConcurrencyMode.Multiple )
B. CallbackBehavior ( ConcurrencyMode = ConcurrencyMode.Multiple )
C. ServiceBehavior ( ConcurrencyMode = ConcurrencyMode.Reentrant )
D. CallbackBehavior ( ConcurrencyMode = ConcurrencyMode.Reentrant )

Question 5

You are developing a Windows Communication Foundation (WCF) service that allows customers to update financial data.
The client applications call the service in a transaction. The service contract is defined as follows. (Line numbers are included for reference only.)

Customers report that the transaction completes successfully even if the Update method throws an exception.
You need to ensure that the transaction is aborted if the Update method is not successful.
What should you do?

A. Insert the following line at line 09. [ServiceBehavior( TransactionAutoCompleteOnSessionClose = false)]
B. insert the following line at line 22. throw;
C. Replace line 12 with the following line. [OperationBehavior( TransactionScopeRequired = true, TransactionAutoCoroplete - false)]
D. Insert the following line at line 09. [ServiceBehavior( TransactionAutoCompleteOnSessionClose = true)]

Solutions: