You have a self-hosted Windows Communication Foundation (WCF) service. You need to configure the service to provide an X509 certificate during authentication. What should you use to configure the service?（）..

第1题

[单选题] A Windows Communication Foundation (WCF) service is self-hosted in a console application. The service implements the IDataAccess contract, which is defined in the MyApplication namespace. The service is implemented in a class named DataAccessService which implements the IDataAccess interface and also is defined in the MyApplication namespace. The hosting code is as follows. (Line numbers are included for reference only.) 01 static void Main(string[] args) 02 { 03 ServiceHost host; 04 ... 05 host.Open（　）; 06 Console.ReadLine（　）; 07 host.Close（　）; 08 } You need to create a ServiceHost instance and assign it to the host variable. You also need to instantiate the service host.Which line of code should you insert at line 04?（）

A、host = new ServiceHost("MyApplication.DataAccessService"); B、host = new ServiceHost("MyApplication.DataAccess"); C、host = new ServiceHost(typeof(IDataAccess)); D、host = new ServiceHost(typeof(DataAccessService));

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第2题

[多选题] 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、HttpContext.Current.User.Identity.Name C、ServiceSecurityContext.Current.PrimaryIdentity.Name D、OperationContext.Current.ServiceSecurityContext.PrimaryIdentity.Name

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第3题

[单选题] You have been asked to use a 28 bit subnet mask to segment the following network block: 108.12.5.0. How many usable hosts per sub-net could you create?（）

A、10 hosts B、14 hosts C、12 hosts D、16 hosts

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第4题

[] A Windows Communication Foundation (WCF) service implements the following contract. [ServiceContract] public interface IHelloService { [OperationContract(WebGet(UriTemplate="hello?name={name}"))] string SayHello(string name);}The implementation is as follows:public class HelloService: IHelloService { public string SayHello(string name) { return "Hello " + name; }}The service is self-hosted, and the hosting code is as follows:WebServiceHost svcHost = CreateHost();svcHost.Open();Console.ReadLine();svcHost.Close();You need to implement CreateHost so that the service has a single endpoint hosted at http://localhost:8000/HelloService.Which code segment should you use?（）

A、A.
B.
C.
D.

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第5题

[单选题] You have been asked to use a 25 bit subnet mask to segment the following network block: 209.18.12.0. How many usable will there be per subnet?（）

A、2 hosts B、120 hosts C、126 hosts D、255 hosts

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第6题

[] Your company has an Active Directory Domain Services (AD DS) domain. All servers run Windows Server 2008 R2. You have a Remote Desktop Services infrastructure that hosts remote desktop sessions for users. You need to be able to revoke 240 Remote Desktop Services client access licenses (RDS CALs). What should you do?（） Your company has an Active Directory Domain Services (AD DS) domain. All servers run Windows Server 2008 R2. You have a Remote Desktop Services infrastructure that hosts remote desktop sessions for users. You need to be able to revoke 240 Remote Desktop Services client access licenses (RDS CALs). What should you do?（）

A、A.Configure the Remote Desktop Session Host (RD Session Host) server to use Per User licensing mode.Install 100 RDS CALs. B、B.Configure the Remote Desktop Session Host (RD Session Host) server to use Per User licensing mode. Install 20 RDS CALs. C、C.Configure the Remote Desktop Session Host (RD Session Host) server to use Per Device licensing mode. Install 20 RDS CALs. D、D.Configure the Remote Desktop Session Host (RD S ession Host) server to use Per Device licensing mode. Install 100 RDS CALs.

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第7题

[] You have an Active Directory Domain Services (AD DS) domain. All servers run Windows Server 2008 R2. All client computers run Windows 7.All client computers are configured to extend the desktop display across two monitors. You have a Remote Desktop Session Host (RD Session Host) server. You need to ensure that users can extend the Remote Desktop Connection window across both monitors. What should you do?（） You have an Active Directory Domain Services (AD DS) domain. All servers run Windows Server 2008 R2. All client computers run Windows 7.All client computers are configured to extend the desktop display across two monitors. You have a Remote Desktop Session Host (RD Session Host) server. You need to ensure that users can extend the Remote Desktop Connection window across both monitors. What should you do?（）

A、A.Configure the screen resolution of the RD Session Hos t server. B、B.Configure the Ease of Access options on the RD Session Host server. C、C.Configure the display configuration settings of the Remote Desktop Connection client to use all monitors. D、D.Configure the display configuration settings of the Remote Desktop Connection client to set the size of the remote desktop to Full Screen.

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第8题

[单选题] You have been asked to use a 30 bit subnet mask to segment the following network block: 108.12.5.0. How many useable subnetworks and usable hosts could be created?（）

A、32 networks with 8 hosts B、62 networks with 2 hosts C、30 networks with 16 hosts D、32 networks with 14 hosts

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第9题

[单选题] Your company has an Active Directory Domain Services (AD DS) domain. All client computers run Windows 7. You have a Remote Desktop Session Host (RD Session Host) server. You have the following requirements: H Local devices from remote desktop clients must be redirected to the RD Session Host server . H USB devices from remote desktop clients must not be redirected to the RD Session Host server. What should you do?（）

A、Disable drive redirection on the remote desktop clients. B、Disable drive redirection on the RD Session Host server. C、Enable the Prevent installation of removable devices Group Policy setting on the remote desktop clients. D、Enable the Prevent installation of removable devices Group Policy setting on the RD Session Host server.

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You have a self-hosted Windows Communication Foundation (WCF) service. You need to configure the service to provide an X509 certificate during authentication. What should you use to configure the service?（）

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