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Microsoft 070-513 Exam Syllabus Topics:

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

1. You are creating a windows Communication Foundation (WCF) service to process orders. The data contract for the order is defined as follows:
[DataContract] public class Order { ... [DataMemberl public string CardHolderName { get; set; [DataMember] public string CreditCardNumber { get; set; } }
You have the following requirements
- Enable the transmission of the contents of Order from the clients to the service. - Ensure that the contents of CreditCardNumber are not sent across the network in clear text. - Ensure that the contents of CreditCardNumber are accessible by the service to process the order.
You need to implement the service to meet these requirements.
What should you do?

A) Convert the DataContract to a MessageContract and set the ProtectionLevel property to SignAndEncrypt
B) Change the data type of CreditCardNumber from string to SecureString
C) Add a DataProtectionPermission attribute to the CreditCardNumber property and set the ProtectData property to true.
D) Implement the CreditCardNumber property getter and setter. In the setter, run the value of the CreditCardNumber through the MD5CryptoServiceProvider class TransformBlock method

2. 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) ServiceBehavior ( ConcurrencyMode = ConcurrencyMode.Reentrant )
C) CallbackBehavior ( ConcurrencyMode = ConcurrencyMode.Reentrant )
D) CallbackBehavior ( ConcurrencyMode = ConcurrencyMode.Multiple )

3. You are creating a Windows Communication Foundation (WCF) service that uses claims-based authorization. The following code retrieves the correct claim set.
var claims = ServiceSecurityContext.Current.
AuthorizationContext.ClaimSets[0];
You need to validate that the requesting client application has included a valid DNS value in the claim.
Which code segment should you use to retrieve the claim for validation?

A) claims.ContainsClairo(Claim.CreateDnsClaim(ClaimTypes.Dns));
B) claims.FindClaims(ClaimTypes.Dns, Rights.Identity) .FirstOrDefault();
C) claims.Equals(ClaimTypes.Dns);
D) claims.FindClaims(ClaimTypes.Dns, Rights.PossessProperty) .FirstOrDefault();

4. A Windows Communication Foundation (WCF) application uses the following data contract.

You need to ensure that the following XML segment is generated when the data contract is serialized.

Which code segment should you use?

A) <DataMember(EmitDefaultValue:=True)>
Public firstName As String
<DataMember(EmitDefaultValue:=True)>
Public lastName As String
<DataMember
(EmitDefaultValue:=False)>
Public age As Integer = -1
<DataMember(EmitDefaultValue:=False)>
Public ID As Integer = 999999999
B) <DataMember()>
Public firstName As String
<DataMember()>
Public lastName As String
<DataMember(EmitDefaultValue:=True)>
Public age As Integer = 0 <DataMember(EmitDefaultValue:=True)> Public ID As Integer = 999999999
C) <DataMember(EmitDefaultValue:=False)>
Public firstName As String = Nothing
<DataMember(EmitDefaultValue:=False)>
Public lastName As String = Nothing
<DataMember(EmitDefaultValue:=True)>
Public age As Integer = -1
<DataMember(EmitDefaultValue:=False)>
Public ID As Integer = 999999999
D) <DataMember()>
Public firstName As String = Nothing
<DataMember()>
Public lastName As String = Nothing
<DataMember(EmitDefaultValue:=False)>
Public age As Integer = 0
< DataMember(EmitDefaultValue:=False)>
Public ID As Integer = 999999999

5. Your company has an existing Windows Communication Foundation (WCF) service. The following code segment is part of the service. (Line numbers are included for reference only.)

You need to ensure that AJAX client applications can access the service. Which code segment should you insert at line 02?

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

Solutions: