Cluster Architectures
It's easier to understand WebLogic Server cluster architecture once you understand the various application tiers that you host on the cluster. Tiers refer to the various ways you can demarcate an application's logical services, such as the presentation and processing of the business logic. The most common application tiers are the following:
Web tier Runs a web server such as Apache, serves static HTML content, and is usually the main interface between the clients and the web application.
Presentation tier Provides dynamic ...
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