How is the bow sheet 12 c Flex cluster connected to the Hub node?

In 12 c Flex, Oracle said that we can install the database of 12 c in hub node and nodes leaves are clients of the DSO.

I want to know if I can configure my application as terminal node servers? Is it possible for me to have my terminal node that is configured as an application server and talk to the Hub node which is the database?

In addition, how the terminal node communicates with the Hub node? Thanks to a private interconnect? or through something else?

I'm sorry that I couldn't quite find the documentation for allowing me to understand these two things.

Thanks in advance!

Refer to: http://m.blog.itpub.net/17252115/viewspace-1409722/

It can help you understand hope it

Tags: Database

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