Which statement is true regarding this connect string? (DESCRIPTION (FAILOVER=on) (ADDRESS_LIST= (LOAD_BALANCE=ON) (ADDRESS=(host=sales-east1) (port=1522) ) (ADDRESS=(host=sales-east2)(port=1522)) (ADDRESS=(host=sales-east3) (port=1522) )) (ADDRESS_LIST= (LOAD_BALANCE=ON) (ADDRESS=(host=sales-west1) (port=1522) ) (ADDRESS=(host=sales-west2) (port=JS22)) (ADDRESS=(host=sales-west3) (port=lS22) ) ) (CONNECT_DATA= (SERVICE_NAME=sales) (REGION=east))) A. It contains three global service managers…

In Oracle Database 12c, when does a transaction begin? A. when a transaction ID is allocated for it. B. when a user explicitly issues a "begin" statement C. when a transaction is assigned to an available undo data segment to…