Microsoft MCTS 70-503

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

1. You are creating a Windows Communication Foundation (WCF) service by using Microsoft .NET Framework 3.5.
The WCF service must authenticate the client applications by validating credit card numbers and expiry dates. You write the following code segment. (Line numbers are included for reference only.)

You need to implement custom authentication for the WCF service. Which code segment should you insert at line 05?

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

2. You create a Windows Communication Foundation service by using Microsoft .NET Framework 3.5.
You write the following code segment for the service implementation.
(Line numbers are included for reference only.)
01 public void PutMessage(Message msg)
02 {
03 string value=null;
05 }
You need to retrieve the content from the received message body and store it in the variable named value. Which code segment should you insert at line 04?

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

3. You are creating a Windows Communication Foundation (WCF) client application by using Microsoft .NET Framework 3.5.
The application uses the XML data format to exchange data with the service.
You plan to change the data format to JavaScript Object Notation (JSON).
You need to ensure that the client application can access the JSON WCF service.
What should you do?

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

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 concurrent calls are allowed on the service instance.
Which code segment should you insert at line 07?

A) [ServiceBehavior(ConcurrencyMode=ConcurrencyMode.Reentrant, ReleaseServiceInstanceOnTransactionComplete=false)]
B) [ServiceBehavior(ConcurrencyMode=ConcurrencyMode.Multiple, ReleaseServiceInstanceOnTransactionComplete=false)]
C) [ServiceBehavior(ConcurrencyMode=ConcurrencyMode.Multiple, ReleaseServiceInstanceOnTransactionComplete=true)]
D) [ServiceBehavior(ConcurrencyMode=ConcurrencyMode.Reentrant, ReleaseServiceInstanceOnTransactionComplete=true)]

5. You create a client application by using Microsoft .NET Framework 3.5. The client application uses a Windows Communication Foundation (WCF) service. You plan to Implement inspection handling on the client application and the WCF service. You need to add error handling to the WCF service.
What should you do?

A) Modify the AfterReceiveReply method to catch the ReplyValidationFault exception. Replace the reply message with an explicit fault message.
B) Modify the AfterReceiveRequest method to catch the ReplyValidationFault exception. Replace the reply message with an explicit fault message.
C) Modify the BeforeSendRequest method to catch the ReplyValidationFault exception. Replace the reply message with an explicit fault message.
D) Modify the BeforeSendReply method to catch the ReplyValidationFault exception. Replace the reply message with an explicit fault message.

Solutions:

Question # 1 Answer: B

Question # 2 Answer: A

Question # 3 Answer: D

Question # 4 Answer: B

Question # 5 Answer: D