A domain can have ONLY one cluster.
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True
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False
A WebLogic domain can contain multiple clusters, not just one. A cluster is a group of Managed Servers that work together to provide scalability and high availability. Domains are often designed with multiple clusters for different purposes or to isolate different applications. The statement 'ONLY one cluster' is false.
In application-server domain architectures (e.g., WebLogic, WebSphere), a single administrative domain is a management/configuration boundary that can contain multiple clusters, each grouping different sets of managed servers for different applications or tiers. Restricting a domain to only one cluster would defeat much of the purpose of having a domain as a top-level container, so the statement is False — domains support multiple clusters.