Which configuration is a valid distributed database (DB) implementation?

Which configuration is a valid distributed database (DB) implementation?
A . 2 main DBs, 1 application server, 2 node servers
B . 1 main DB, 1 application server, 3 node servers
C . 2 application servers, 1 main DB, 1 node server
D . 1 application server, 2 main DBs, 1 node server

View Answer

Answer: B