Oracle OCP 1Z0 053 Q437(Resource Plan)

437.Within a resource-plan definition, what differentiates a top-level plan from a subplan?
A. A subplan has the PLAN_SUB parameter value set to SUB.
B. A top-level plan has the GROUP_OR_PLAN parameter set to the name of the subplan in the
resource-plan definition.
C. There is no difference in the resource-plan definition.
D. A subplan always has the CPU_MTH parameter value set to RATIO.
E. The string TOP_LEVEL is appended to the name of top-level resource plans.
Answer: C


參考：http://blog.itpub.net/17013648/viewspace-1295985/

解析：

一個resource plan可以引用其它的resource plan，則被引用的resource plan即可被稱為subplan

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