Which of the following security technology is not covered in Metro project? (Choose one

As you know from “Introducing Metro,” the reference implementations of the JAXB 2.x data-binding and JAX-WS 2.x Web services standards are at the core of the Metro Web services framework. But in and of themselves, JAXB and JAX-WS provide only basic Web services support. JAX-WS doesn’t cover the WS-* technologies that upgrade SOAP to work in enterprise environments, so other software components are needed to add support for these technologies.
About this series
Web services are a crucial part of Java technology’s role in enterprise computing. In this series of articles, XML and Web services consultant Dennis Sosnoski covers the major frameworks and technologies that are important to Java developers using Web services. Follow the series to stay informed of the latest developments in the field and aware of how you can use them to aid your programming projects.

In Metro, the main added component is Web Services Interoperability Technologies (WSIT). WSIT is the current incarnation of what was originally known as Project Tango — Sun’s effort to ensure interoperability of WS-* features, including security and reliable messaging, with the Microsoft .NET platform. WSIT provides Metro with support for WS-SecurityPolicy, WS-Trust, WS-SecureConversation, WS-ReliableMessaging, and more. The actual runtime handling of WS-Security is implemented by another added component, the XML and WebServices Security Project (XWSS).

http://www.ibm.com/developerworks/library/j-jws10/