13、Which two are true about AWR snapshots?

A) They are stored In the SYSAUX tablespace.

B) They are not generated if STATISTICS_LEVEL Is set to TYPICAL.

C) They can be modified by using DMLs.

D) They can be retained forever.

E) They are always created automatically.

Answer:AD

北京CUUG整理，转载请注明，OCP讨论群：569933648