XeroBank: Entry/Exit Nodes

As a spin-off from the thread xerobank - access and deposit account (post #10) . . .

• On what basis is the location of the entry node determined? For example, does XeroBank execute a network rule that the entry node is always distinct from both the exit node as well as the customer’s country of origin?
  
  
• Is the entry node static (i.e., constant) for an individual in a given country – or, does XeroBank dynamically change the entry node (e.g., every time a connection is established from the user’s PC to the XeroBank network)?
  
  
• How can a user check which entry node she or he is using on the XeroBank network?
  
  
• Is it possible for a user to specify the desired entry node on the XeroBank network?

P.S.: Hopefully, these and other similar questions will be addressed in the forthcoming white paper describing the architecture of the XeroBank network.