070-513 試験問題を無料オンラインアクセス

A WCF service code is implemented as follows. (Line numbers are included for reference only.)
01 [ServiceContract] 02 [ServiceBehavior(InstanceContextMode = 03 InstanceConcextMode.Single)]
04 public class CalculatorService
05 {
06 [OperacionContract]
07 public double Calculate(double opl, 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.

You are developing a Windows Communication Foundation (WCF) service that contains the following service contract.
<ServiceContract() > Public Interface IPaymentService <OperationContract() > Sub RecordPayments(ByVal person As Person) End Interface Public Class Person End Class Public Class Employee Inherits Person End Class Public Class Customer Inherits Person End Class
You need to ensure that RecordPayments can correctly deserialize into an Employee or a Customer object.
What should you do?

• A.Implement the IExtension(Of T) interface in the Person class.
• B.Add the following KnownType attribute to the Employee class and to the Customer class. <KnownType(GetType(Person))>
• C.Implement the IExtensibleDataObject interface in the Person class.
• D.Add the following KnownType attributes to the Person class. <KnownType(GetType(Employee))> <KnownType(GetType(Customer))>

A self-hosted Windows Communication Foundation (WCF) service uses a secure HTTP
binding with a custom principal permission mode. The binding requires users to provide their Windows logon credentials.
You need to retrieve the identity of the caller.
What are two possible properties you can use to achieve this goal? (Each correct answer presents a complete solution. Choose two.)

• A.Thread.CurrentPrincipal.Identity-Name
• B.ServiceSecurity Context.Current.Primary Identity.Name
• C.OperationContext.Current.ServiceSecurity Context.Primary Identity.Name
• D.HttpContext.Current.User.Identity.Name

A class named TestService implements the following interface.

TestService is hosted in an ASP.NET applicator.
You need to modify the application to allow the GetServiceTime method to return the data formatted as JSON.
It must do this only when the request URL ends in lServiceTime.
What should you do?

• A.Add this attribute to the GetServiceTime method
  <WebGet(UriTempbte: z"{Json}/ServiceTime")>
  Create a new svc file named Jsonversionsvc with the following contert <%@ ServiceHost
  Service="TestSenvice"
  Factoryz'System Se viceMode[ktivationWebServiceHodFactory" %>
• B.Add this attribute to the GetServiceTime method
  <webGet(
  ResponseFormat WebMessageFormatJson,
  UnTemplate:eJServiceTime")>?
  Create a new svc file named Jsonversion svc with the following contract <%@ ServiceHost
  Servicee"TessService"i
  Factory="System ServiceModelktivation WebServiceHosFactory" %s
• C.Add this attribute to the GetServiceTime method
  <Webinvoke(Method PGETw,
  UrTemplate:eiSeneiceTim&, ResponseFormat: WebMessageFormatJson)>
  In the bconfIg file, configure TestService in the system.arviceModeI/services collection as
  follows. <senvice
  namee"TestService"> <endpoint ad&esse"ISer,iceTime"r
  contracte"TestSence' bindingewebHttpBindngw />
  c/service>
• D.Add this attribute to the GetServiceTime method <webinvoke(Method "POST)> In the bconfig file, add this element to systemserviceModeI/behaviors/endpointBehaviors. <behavior names"Json">e <enableWebScript
  c/behavior>
  In the web.config file, configure TestService in the system.serviceModel/services collection
  as follows.
  <service name"TestService">s
  <endpoint address/ServiceTime"
  contract-"TestSerAce""
  behaviorConlfgurationz'Json
  bindinge"webHttpBinding"!> <!services

You are developing a Windows Communication Foundation (WCF) service that reads messages from a public non-transactional MSMQ queue.
You need to configure the service to read messages from the failed-delivery queue.
Which URI should you specify in the endpoint configuration settings of the service?

• A.net.msmq://localhost/msmq$;FailedMessages
• B.net.msmq://localhost/system$;DeadXact
• C.net.msmq://localhost/system$;DeadLetter
• D.net.msmq://localhost/msmq$;DeadLetter