asp.net - How to design a WCF service which can support 10,000 simultaneous hits -

I am starting at WCF and want some help in making WCF for my project.

I have to create a WCF service that can support 10,000 users simultaneously hit.

The WCF service is meant to bring a cached up XML object (we are using Enterprise Lib caching) and caller it back.

This WCF service will be exposed publicly. So I was thinking that we might have to use basic HTTP binding ... I do not know, I can be wrong.

Can anyone recommend the best way to move forward with it?

This article may be useful -