Which two are true about server-generated alerts? (Choose two.) A. Stateful alerts must be created by a DBA after resolving the problem. B. Stateless alerts can be purged manually from the alert history.

C.    Stateless alerts can be cleared manually.

D.    Stateless alerts are automatically cleared.

E.    Stateful alerts are purged automatically from the alert history.

Answer: BC

(解析:答案 A 的意思是如果解决了问题,dba 最好是创建一个预警机制,以防后患。有状 态的度量警告如果发生了,清除的方法是如何解决相关的底层问题,如果问题解决,则把告 警信息移动到历史表中,以后会自动清除。)

18、Which three are located by using environment variables? (Choose three.)

A.    the Optimal Flexible Architecture (OFA) compliant path to store Oracle software and configuration files. B.    the location of Oracle Net Services configuration files   C.    the list of a disk group names to be mounted by an Oracle Automatic Storage Management (ASM) instance at startup D.    default directories for temporary files used by temporary tablespaces

E.    the temporary disk space used by Oracle Installer during installation

F.    the maximum number of database files that can be opened by a database instance Answer: ABE(56 道) (解析:本道题的题目描述的不够清晰,不知道环境变量指的是什么,我们暂且理解为用户 的环 境变量,如果是这样子的话,那么能够影响的内容就是 ABE 三个答案。)  19、Which three are true about opatch auto? (Choose three.)

A.    It performs a shutdown and then a restart of all processes in both Oracle Grid Infrastructure and Orac