12C OCP IZO-62 题库（8月以前）

question 1
which three statements are true about automatic workload repository(AWR)?(choose three.)
关于自动工作负载存储库(AWR)，哪三条语句是正确的?(选择三个)。
B) the awr data is stored in memory and in the database.
awr数据存储在内存和数据库中。
C) the snapshots collected by awr are used by the self-tuning components in the database.
awr收集的快照由数据库中的自调优组件使用。
D) awr computes time model statistics based on time usage for activities, which are displayed in the v$S$