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Code d'Examen: MB7-638
Nom d'Examen: Microsoft (NAV 5.0 Trade and Inventory)
Questions et réponses: 60 Q&As
Code d'Examen: 70-448
Nom d'Examen: Microsoft (TS:MS SQL Server 2008.Business Intelligence Dev and Maintenan)
Questions et réponses: 147 Q&As
Code d'Examen: 070-521
Nom d'Examen: Microsoft (Upgrade: Transition Your MCPD Windows Developer 3.5, or Enterprise Application Developer 3.5, Skills to MCPD Windows Developer 4)
Questions et réponses: 115 Q&As
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NO.1 You are consuming a Windows Communication Foundation (WCF) service in an ASP.NET Web
application. The service interface is defined as follows.
[ServiceContract]
public interface ICatalog
{
[OperationContract]
[WebGet(UriTemplate = "/Catalog/Items/{id}",
ResponseFormat = WebMessageFormat.Json)]
string RetrieveItemDescription(int id);
}
The service is hosted at /Catalog.svc.
You need to call the service using jQuery to retrieve the description of an item as indicated by a variable
named itemId.
Which code segment should you use?
A.$.get(String.format("/Catalog.svc/Catalog/Items/?id={0}", itemId) null,
function (data) {
...
},
"javascript");
B.$.get(String.format("/Catalog.svc/Catalog/Items/{0}", itemId), null,
function (data) {
...
},
"json");
C.$.get(String.format("/Catalog.svc/Catalog/Items/{0}", itemId), null,
function (data) {
...
},
"xml");
D.$.get(String.format("/Catalog.svc/Catalog/Items/id={0}", itemId), null,
function (data) {
...
},
"json");
Answer: B
Microsoft examen certification 070-521 certification 070-521
NO.2 A WCF service code is implemented as follows. (Line numbers are included for reference only.)
01 [ServiceContract]
02 [ServiceBehavior(InstanceContextMode =
03 InstanceContextMode.Single)]
04 public class CalculatorService
05 {
06 [OperationContract]
07 public double Calculate(double op1, string op, double op2)
08 {
...
24 }
25 }
You need to decrease the response time of the service.
What are two possible ways to achieve this goal? (Each correct answer presents a complete solution.
Choose two.)
A.Change the service behavior to the following.
[ServiceBehavior(
InstanceContextMode = InstanceContextMode.Single,
ConcurrencyMode = ConcurrencyMode.Multiple)]
B.Change the service behavior to the following.
[ServiceBehavior(InstanceContextMode = InstanceContextMode.PerCall)]
C.Require the clients use threads, the Parallel Task Library, or other mechanism to issue service calls in
parallel.
D.Require the clients to use async operations when calling the service.
Answer: AB
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NO.3 A Windows Communication Foundation (WCF) client uses the following service contract. (Line
numbers are included for reference only.)
01 [ServiceContract]
02 public interface IService
03 {
04 [OperationContract]
05 string Operation1();
06 [OperationContract]
07 string Operation2();
08 }
You need to ensure that all calls to Operation1 and Operation2 from the client are encrypted and signed.
What should you do?
A.Set the ProtectionLevel property in line 01 to EncryptAndSign.
B.Set the ProtectionLevel property in line 04 and line 06 to Sign.
C.Add a SecurityCriticalAttribute for each operation.
D.Add a SecuritySafeCriticalAttribute for each operation.
Answer: A
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NO.4 You are creating a Windows Communication Foundation (WCF) service that implements operations in a
RESTful manner. You need to add a delete operation.
You implement the delete method as follows.
void DeleteItems(string id);
You need to configure WCF to call this method when the client calls the service with the HTTP DELETE
operation.
What should you do?
A.Add the WebInvoke(UriTemplate = "/Items/{id}", Method="DELETE") attribute to the operation.
B.Add the HttpDelete attribute to the operation.
C.Replace the string parameter with a RemovedActivityAction parameter.
D.Replace the return type with RemovedActivityAction.
Answer: A
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NO.5 You are creating a Windows Communication Foundation (WCF) service. You do not want to expose the
internal implementation at the service layer.
You need to expose the following class as a service named Arithmetic with an operation named Sum.
public class Calculator
{
public int Add(int x, int y)
{
}
}
Which code segment should you use?
A.[ServiceContract(Namespace="Arithmetic")]
public class Calculator
{
[OperationContract(Action="Sum")]
public int Add(int x, int y)
{
...
}
}
B.[ServiceContract(ConfigurationName="Arithmetic")]
public class Calculator
{
[OperationContract(Action="Sum")]
public int Add(int x, int y)
{
...
}
}
C.[ServiceContract(Name="Arithmetic")]
public class Calculator
{
[OperationContract(Name="Sum")]
public int Add(int x, int y)
{
...
}
}
D.[ServiceContract(Name="Arithmetic")]
public class Calculator
{
[OperationContract(ReplyAction="Sum")]
public int Add(int x, int y)
{
...
}
}
Answer: C
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NO.6 You are creating a Windows Communication Foundation (WCF) service based on WSHttpBinding.
New audit requirements dictate that callers must be authenticated on every call to ensure that their
credentials have not been revoked.
You need to ensure that the service will not cache the security request token.
What should you do?
A.Apply a ServiceBehavior attribute to the service implementation class with the InstanceContextMode
property set to Single.
B.In the message security configuration, change clientCredentialType from IssuedToken to UserName.
C.In the message security configuration, set establishSecurityContext to false.
D.At the end of every operation, call the SessionStateUtility.RaiseSessionEnd method.
Answer: C
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NO.7 You are developing an application to update a user' s social status. You need to consume the service
using Windows Communication Foundation (WCF).
The client configuration is as follows.
<system.serviceModel>
<bindings>
<webHttpBinding>
<binding name="SocialConfig">
<security mode="TransportCredentialOnly">
<transport clientCredentialType="Basic"
?realm="Social API" />
</security>
</binding>
</webHttpBinding>
</bindings>
<client>
<endpoint address="http://contoso.com"
binding="webHttpBinding"
bindingConfiguration="SocialConfig"
contract="ISocialStatus"
name="SocialClient" />
</client>
</system.serviceModel>
The service contract is defined as follows.
[ServiceContract]
public interface ISocialStatus
{
[OperationContract]
[WebInvoke(UriTemplate =
"/statuses/update.xml?status={text}")]
void UpdateStatus(string text);
}
Which code segment should you use to update the social status?
A.using (WebChannelFactory<ISocialStatus> factory =
new WebChannelFactory<ISocialStatus>("SocialClient"))
{
factory.Credentials.UserName.UserName = user.Name;
factory.Credentials.UserName.Password = user.Password;
ISocialStatus socialChannel = factory.CreateChannel();
socialChannel.UpdateStatus(newStatus);
}
B.using (ChannelFactory<ISocialStatus> factory =
new WebChannelFactory<ISocialStatus>(typeof(ISocialStatus))) {
factory.Credentials.UserName.UserName = user.Name;
factory.Credentials.UserName.Password = user.Password;
ISocialStatus socialChannel = factory.CreateChannel();
socialChannel.UpdateStatus(newStatus);
}
C.using (ChannelFactory<ISocialStatus> factory =
new ChannelFactory<ISocialStatus>("POST"))
{
factory.Credentials.Windows.ClientCredential.UserName =
user.Name;
factory.Credentials.Windows.ClientCredential.SecurePassword.
SetAt(0, Convert.ToChar(user.Password));
ISocialStatus socialChannel = factory.CreateChannel();
socialChannel.UpdateStatus(newStatus);
}
D.using (WebChannelFactory<ISocialStatus> factory =
new WebChannelFactory<ISocialStatus>(typeof(ISocialClient))) {
factory.Credentials.Windows.ClientCredential.UserName =
user.Name;
factory.Credentials.Windows.ClientCredential.SecurePassword.
SetAt(0, Convert.ToChar(user.Password));
ISocialStatus socialChannel = factory.CreateChannel();
socialChannel.UpdateStatus(newStatus);
}
Answer: A
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NO.8 You are creating a Windows Communication Foundation (WCF) service that is implemented as follows.
(Line numbers are included for reference only.)
01 [ServiceContract]
02 [ServiceBehavior(IncludeExceptionDetailsInFaults = true)]
03 public class OrderService
04 {
05 [OperationContract]
06 public void SubmitOrder(Order anOrder)
07 {
08 try
09 {
10 ...
11 }
12 catch(DivideByZeroException ex)
13 {
15 }
16 }
17 }
You need to ensure that the stack trace details of the exception are not included in the error information
sent to the client.
What should you do?
A.Replace line 14 with the following line.
throw;
B.Replace line 14 with the following line.
throw new FaultException<Order>(anOrder, ex.ToString());
C.After line 05, add the following line.
[FaultContract(typeof(FaultException<Order>))]
Replace line 14 with the following line.
throw ex;
D.After line 05, add the following line.
[FaultContract(typeof(FaultException<Order>))]
Replace line 14 with the following line.
throw new FaultException<Order>(anOrder, "Divide by zero exception");
Answer: D
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