Consider an IT infrastructure comprising several web and EJB applications. Each application is
expected to handle significantly different workloads, and therefore has different resource and
scalability requirements. Which is the best solution for this scenario?
A.
Configure a dedicated server for each application.
B.
Configure a separate cluster for each application.
C.
Configure a separate domain for each application.
D.
Configure a separate proxy for each application.
Explanation:
A WebLogic domain can be composed of a number of WebLogic instances, and
several of these servers may be grouped into clusters. For instance, you could set up a
cluster of WebLogic servers, all of which host your web application and related
resources. This cluster of servers could be fronted by a load balancer that distributes
requests evenly across all the members of the cluster. The load balancer could itself be
another WebLogic instance. All server instances must belong to the same WebLogic
domain. Thus, a WebLogic cluster is a group of servers working together with services,
such as clustered JNDI, to provide support for failover and load balancing. A domain
may in turn have a number of WebLogic instances, several groups of which can be
placed into different clusters.