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Microsoft 70-513 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Hosting and Deploying WCF Services | - Service hosting environments
|
| WCF Security | - Security configuration
|
| Bindings and Messaging | - WCF bindings
|
| Designing and Implementing WCF Services | - Service implementation
|
| Diagnostics and Troubleshooting | - Error handling
|
Microsoft TS: Windows Communication Foundation velopment with Microsoft .NET Framework 4 Sample Questions:
You are developing a Windows Communication Foundation (WCF) service to provide an in-memory cache for many Web applications. The service contract is defined as follows. (Line numbers are included for reference only.)
01 <ServiceContract()> 02 Public Interface IDataCache 03
04 . . . 05 End Interface 06 07 08 Public Class DataCache 09 Implements IDataCache 10
11 . . . 12 End Class
You need to ensure that all users share the cache.
Which code segment should you insert at line 07?
- A. <ServiceBehavior(InstanceContextMode:= InstanceContextMode.Single)>
- B. <ServiceBehavior(TransactionIsolationLevel:= IsolationLevel.ReadCommitted)>
- C. <ServiceBehavior(TransactionIsolationLevel:= IsolationLevel.RepeatableRead)>
- D. <ServiceBehavior (InstanceContextMode : = InstanceContextMode.PerSession)>
Correct Answer: A 🗳️
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audit requirements dictate that callers must be authenticated on every call to ensure that their credentials have not been revoked.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. At the end of every operation, call the SessionStateUtility.RaiseSessionEnd method.
- B. Apply a ServiceBehavior attribute to the service implementation class with the InstanceContextMode property set to Single.
- C. In the message security configuration, change clientCredentialType from IssuedToken to UserName.
- D. In the message security configuration, set establishSecurityContext to false.
Correct Answer: D 🗳️
You need to modify a client application that consumes a Windows Communication Foundation (WCF) service.
The service metadata is no longer available.
You need to modify the previously generated proxy to include asynchronous calls to the service.
What should you do?
- A. Update the service reference with the Generate asynchronous operations option.
- B. Create a class with the same name as the previously generated proxy and add the new asynchronous methods as partial methods. Add the new class to a namespace that is different from the original proxy.
- C. Create a class with the same name as the previously generated proxy and add the new asynchronous methods. Add the new class to a namespace that is different from the original proxy.
- D. Create a partial class for the previously generated proxy and include the new asynchronous methods.
Correct Answer: D 🗳️
A Windows Communication Foundation (WCF) service is required to log all authorization attempts to the Windows Event Log.
You need to configure a behavior and apply it to the service to support this requirement.
Which behavior should you configure and apply?
- A. serviceAuthenticationManager
- B. serviceCredentials
- C. serviceSecurityAudit
- D. serviceAuthorization
Correct Answer: C 🗳️
You are developing a custom service host for a Windows Communication Foundation (WCF) service. The service host is named MovieServiceHost.
You need to deploy the service with the custom service host in Microsoft Internet Information Services (IIS) 7.0.
What should you do?
- A. Create a factory for the custom service host. Name the factory MovieServiceHostFactory. In the .svc file, add the following line. <%3 ServiceHost Service="MovieServiceHostFactory" Language="VB"%>
- B. Make sure that the service class has a default constructor. Add a public read-only property with the name ServiceHost that returns an instance of the MovieServiceHost class.
- C. Decorate the custom service host class with the following line. <System.ServiceModel.Activation.ServiceActivationBuildProvider()>
- D. Create a factory for the custom service host. Name the factory MovieServiceHostFactory. In the web.config file, add the following attribute to the <add> element within the <serviceActivations> element, factory="HovieServiceHostFactory"
Correct Answer: D 🗳️
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