55题、choose two
Your database supports an online transaction processing (OLTP) workload in which one of the applications creates a temporary table for a session and performs transactions on it. This consumes a lot of undo tablespace and generates lots of redo.
Which two actions would you take to solve this problem?
A) Increase the size of the redo log buffer.
B) Enable undo retention guarantee.
C) Increase the size of the temporary tablespace.
D) Enable Automatic Memory Management (AMM).
E) Enable temporary undo for the database.
Answer：CE
(解析：12c有个针对临时表的dml操作的解决方案，为了减少redo的产生和undo表空间的使用，可以启用临时undo的功能，这样子把undo数据存放在临时表空间。来自3组：1015267481)