OCP 1Z0 052 32

32. Your database instance is running with full workload after database creation. You have decided to use 
a  fixed-size undo  tablespace. You want  to use  the Undo Advisor  to estimate  the capacity of  the undo 
tablespace.  
Which two factors must you consider before using the Undo Advisor to estimate the capacity of the undo 
tablespace? (Choose two.) 
A.the retention period to support flashback 
B.the expected length of the longest-running query 
C.the number of undo tablespaces in the database 
D.the size of the Flash Recovery Area for the database instance 
Answer: AB

undo tablespace一次只能和一个，所以数量不在考虑范围内
fra是数据库闪回区，与undo无关