What is a WebLogic Express Domain?
A. For ease of administration and management, one or more WebLogic Express instances – and their associated resources – are grouped together in an administrative unit called a domain. A domain can include multiple WebLogic Express clusters and non-clustered WebLogic Express instances. A single Administration Server manages a domain. A domain could consist of only one WebLogic Express instance. However, that sole server instance would serve as an Administration Server, because each domain must have exactly one Administration Server. You can define multiple domains based on different system administrators’ responsibilities, application boundaries, or geographical locations of servers.