Basic queries on PrimeBrokerage

Hi,
I am trying to learn about Prime Brokerage, and have have few basic queries listed below. Could someone clarify these basic doubts please?

1. I keep on reading in online documents that after PB Client enters
into trade with counterparty, it informs trade details to PB and
counterparty also gives up trade to PB.

a. Is counterparty same as executing broker or is it
different?

b. How does PB Client informs trade details to PB? Is it via
email, phone, fax, CSV/XML file upload, FIX connection
or by some other means?

c. How does counterparty give up trades to PB? By electronic
means or by email etc.?

d. How does PB Client trade with counterparty? Is it via
electronic trading?

e. Does PB Client remains anomynous to counterparty (an/or
(to executing broker) ?

f. Who are these executing brokers?

2. Apart from hedge funds, who are PB clients?

3. What are the responsibilities of PB's Client Services team?

4. What are typical activities done by PB's Client Services team
to get Client on board also ongoing responsibilities?

5. Is it the job of Client Services team or PB Operations to
monitor margin limits of PB Client?

Rgds
Soni