In a recent Automatic Workload Repository (AWR) report for your
Database, you notice a high number of buffer busy waits. The database
Consists of locally managed tablespaces with free list managed segments.
On further investigation, you f ind that buffer busy waits is caused by
Contention on data blocks.
Which option would you consider first to decrease the wait event
Immediately?
A.正确答案DDecreasing PCTUSED
B.Decreasing PCTFREE
C.Increasing the number of DBWN process
D.Using Automatic Segment Space Management (ASSM)
E.Increasing db_buffer_cache based on t he V$DB_CACHE_ADVICE
Recommendation
