One software license is required per machine/CPU.
A server deployment license allows you to deploy quadbase solutions in applets, applications, servlets, JSPs, etc. - generally in a server environment. Deployment licenses are priced per server CPU. 1 CPU is included, if you have more than 1 CPU in your server machine then you will need additional licenses.
Direct Support and Maintenance includes email/phone support, minor patches and bug fixes as well as upgrades/new versions for 1 Year. After this you can renew to continue to receive support and updates.