You executed the following command to drop a user: DROP USER scott CASCADE; Which two statements regarding the above command are correct?()
AAll the objects of scott are moved to the Recycle Bin.
BAny objects in the Recycle Bin belonging to scott are purged.
CAll the objects owned by scott are permanently dropped from the database.
DAll the objects of scott in the Recycle Bin must be purged before executing the DROP command.
EAny objects in the Recycle Bin belonging to scott will not be affected by the above DROP command.
微型计算机中的主存储器是()。
A bank has requested proposals for a storage solution to upgrade their disaster recovery processes for their IBM System z, UNIX, and Microsoft Windows environment. The solution must simulate a multi-site environment and provide the customer the ability to evaluate Metro Mirror, Global Mirror, Global Mirror for z/OS, and FlashCopy. Floor space is limited. Which solution best meets the specified requirements()
A、two IBM System Storage DS8100 systems
B、one IBM System Storage DS8300 with LPAR
C、two IBM System Storage DS6800 systems in a single rack
D、one IBM System Storage DS6800
以下说法正确的是()。
A、所有交换机的光纤端口都是2个
B、采用光纤端口级联时,光纤跳线必须是2根
C、当光纤端口连接成功后,LED指示灯为红色
D、采用光纤端口级联时,光纤跳线只需要1根
Which tuning tool recommends how to optimize materialized views so that these views can take advantage of the general query rewrite feature?()
A、Segment Advisor
B、SQL Access Advisor
C、Undo Advisor
D、SQL Tuning Advisor
层次分析法的特点是()。
A、分析思路清楚,可将系统分析人员的思维过程系统化、数学化和模型化
B、分析时需要使用的定量数据很多,要求对问题所包含的因素及相关关系具体而明确
C、分析时需要使用的定量数据不多,但要求对问题所包含的因素及相关关系具体而明确
D、适用于多准则、多目标的复杂问题的决策分析
E、适用于少准则、少目标的简单问题的决策分析