You work as the Microsoft.NET developer at Domain.com. The Domain.com network consists of a single Active Directory domain named Domain.com. All servers in the domain run Windows Server 2003. The development and deployment of Extensible Markup Language (XML) Web Services forms part of your responsibilities at Domain.com.
After receiving instructions, you have just finished developing and deploying public and private Extensible Markup Language (XML) Web services to a production server. This production server has been configured with Microsoft Internet Information Services (IIS) 6.0. The Web services are located on different IIS virtual directories. Each of these IIS virtual directories hosts either public Web services or private Web services, but not both. Part of the instructions that you received also states that Web service clients must have the ability to discover the public Web services dynamically, but not the private Web services. The Web Service clients should also be granted the ability to ability to dynamically discover any new public Web services that are added to an existing virtual directory. To this end you now need to configure the server to meet these requirements. You should take care that your configuration does not prevent the discovery of Web services in new virtual directories unless you reconfigure the server.

What should you do? (Each correct answer presents part of the solution. Choose three.)

A.
Add a .disco file to the Web site’s virtual root directory.

B.
Add a .vsdisco file to the Web site’s virtual root directory.

C.
Do not add .vsdisco files anywhere on the server.

D.
Add the .vsdisco files to each virtual root directory that exposes public Web services.

E.
Configure the .disco file with reference to each public Web service.

F.
Configure the .disco file with reference to each .vsdisco file.

Explanation:
You need to add a static discovery document, i.e. a .disco file to the IIS root directory and dynamic discovery documents, i.e. .vsdisco files to each virtual directory that exposes public Web services. This way you can ensure that Web service clients have the ability to only discover the public Web services.
Incorrect answers:
B: You should not add .vsdisco files to the IIS root directory.
C: Adding a .vsdisco file anywhere on the server will expose the private Web services.
E: .disco files should not be configured to reference to each public Web service. This means that Web clients will not be able to not automatically discover new Web services that are added to existing virtual directories.