You are developing a self-hosted WCF service that returns stock market information. The service must be
discoverable by any client application. You need tobuild the service host. How should you build the host?
Answer: 
Explanation:
How should you build the host?
You are developing a self-hosted WCF service that returns stock market information. The service must be
discoverable by any client application. You need tobuild the service host. How should you build the host?
new UdpDiscoveryEndpoint
Based on http://www.codeproject.com/Articles/469549/WCF-Discovery, this is incorrect. UDP limits to LAN, and this needs to be “discoverable by any client”.
Should be: host.AddServiceEndpoint(new UdfDiscoveryEndpoint());
https://msdn.microsoft.com/en-us/library/dd456783(v=vs.110).aspx
See above: Based on http://www.codeproject.com/Articles/469549/WCF-Discovery, this is incorrect. UDP limits to LAN, and this needs to be “discoverable by any client”.
I take that back: “UdpBinding is useful in scenarios where a service needs to send out small messages to a number of clients simultaneously. A stock ticker application is an example of such a service.” https://msdn.microsoft.com/en-us/library/hh556229%28v=vs.110%29.aspx
To configure the service for discovery, we need to add the standard udpDiscoveryEndpoint endpoint as well as need to enable the serviceDiscovery behavior on the service.