Illustration repln078.gif shows two master sites: master site 1 and master site 2. Each master site contains two master groups, Group A and Group B, and the database objects in these replication groups are exactly the same at each master site.

The database objects in Group A at both sites are the following:

- `hr.employees`

- `hr.departments`

- `hr.locations`

- `hr.countries`

- `hr.job_history`

- `hr.jobs`

- `hr.regions`

The database objects in Group B at both sites are the following:

- `oe.customers`

- `oe.orders`

- `oe.order_items`

- `oe.product_information`

- `oe.product_descriptions`

- `oe.inventories`

- `oe.warehouses`