【第20题】【063题库】2019年OCP12c认证1Z0-063考试题库大全
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我要咨询OCP 12c考试考3科，分别是071、062、063，之前071和062都已经做过解析，这里开始063题库解析，希望对考063的同学有帮助，顺利通过063考试。
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20题、Which two statements are true about Resource Manager plans for individual pluggable databases (PDB plans) in a multitenant container database (CDB)?
A. If no PDB plan is enabled for a pluggable database, then all sessions for that PDB are treated to an equal degree of the resource share of that PDB.
B. In a PDB plan, subplans may be used with up to eight consumer groups.
C. If a PDB plan is enabled for a pluggable database, then resources are allocated to consumer groups across all PDBs in the CDB.
D. If no PDB plan is enabled for a pluggable database, then the PDB share in the CDB plan is dynamically calculated.
E. If a PDB plan is enabled for a pluggable database, then resources are allocated to consumer groups based on the shares provided to the PDB in the CDB plan and the shares provided to the consumer groups in the PDB plan.
Answer: A,E
Explanation(解析：CDB 的资源管理，Oracle 使用一种机制叫做 PDB Performance profile 特性，先创建一个资源计划，然后在这个计划里面创建多个 profile(类似于消费组)同时给予分配不同的资源，然后通过db_performance_profile 在不同的 pdb 中指定上面创建的 profile，这样子就可以控制不同的 pdb 使用的资源分配。)
