Answer:
All SA 2.0 and CSCP 3.0 elements (Service Engine, Edge Proxy, Data Exchange, and Data Gateway) need to communicate to a TimesTen database to query subscribers' information.
The elements connect to TTDAS through COBRA, which is the communication protocol between the elements and TTDAS.
COBRA Name Server (NS) holds all of the necessary information on how and where to connect to TTDAS servers. Every time an element starts up, it queries COBRA NS for information on TTDAS servers.
