Got Associate Certification, what can i do or what i will going to receive?

Hi, have a nice day everybody. Yesterday i took the PostgreSQL Associate
Exam, and fortunately i got 76% in my exam (there are some topics that i
still have to study and practice more) so i got the certification. I
received an email with my score and a PDF diploma. That's nice, but i have
some doubts:

- I remember that there's some kind of website or portal where people
can check if i'm really have a PostgreSQL certification, is that true? If
that's true, i can fill some kind of profile or something like that, upload
a photo and so on?
- A couple of years ago i got the certification "Sun Certified Java
Programmer", and i received 3 weeks later (i took the exam in a
certificated place to do it here in El Salvador) a mail with a physical
diploma and other stuff, i will receive something physical via mail or
something like that?
- When i got SCJP also i got right to use special JAVA logos on my
signatures or PPTs, will i get something similar now that i got Associate
Certification?
- In general, what are the advantages or stuff that i have right now
that i passed the exam, apart of the fact of being able to take the next
certification, the knowledge and the boost for my CV?
- About Professional Certification, why it's mandatory to buy the
training?

Regards.

***************************
Oscar Calderon
Analista de Sistemas
Soluciones Aplicativas S.A. de C.V.
www.solucionesaplicativas.com
Cel. (503) 7741 7850 Tel. (503) 2522-2834