【第20題】【063題庫】2019年OCP12c認證1Z0-063考試題庫大全
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我要咨詢OCP 12c考試考3科，分別是071、062、063，之前071和062都已經做過解析，這里開始063題庫解析，希望對考063的同學有幫助，順利通過063考試。
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20題、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 的資源管理，oracle 使用一種機制叫做 PDB Performance profile 特性，先創建一個資源計劃，然后在這個計劃里面創建多個 profile(類似于消費組)同時給予分配不同的資源，然后通過db_performance_profile 在不同的 pdb 中指定上面創建的 profile，這樣子就可以控制不同的 pdb 使用的資源分配。)
