The functionality of the offered interfaces is equal. However, there is no post-trade environment attached, no reference data and no access to the various GUIs. It is designed to support our members & ISVs software development.

Correct, each customer opens its own T7 instance and you’ll have a preconfigured number of IDs to use for test trading.

Yes, as the T7 Cloud Simulation is an additional resource to the regular simulation and is non-negotiable.

You start the T7 Cloud Simulation instances for yourself only; the instances are then billed from the moment the exchange becomes available, regardless of whether you connect to it or not (its similar to a parking pricing scheme.) There is also an automatic terminate feature, which stops your T7 Cloud Simulation instance when its maximum run time has elapsed, in case you forget to terminate it manually. This is by default set to 4 hours (meaning that by default you won't be billed for more than 4 hours), but can be adjusted at any point from instance start up until its termination within the interface. Instances can run for anywhere between 1 and 24 hours. 
 
You will be billed per hour, for each hour since the exchange in T7 Cloud Simulation instance became available. Start of the exchange from instance start takes approximately 10 minutes, and you are never billed for the time it takes for the instance to start up, until the exchange is available for your use. 

Slide 8 of the Cloud Simulation presentation addresses this issue. The presentation also provides a nice overview of the T7 Cloud offering.

To terminate the T7 Cloud Simulation access an official request on letterhead paper should be sent as pdf to client.services@deutsche-boerse.com.