单项选择题

Exhibit， Viewing the Exhibit and examine the Flashback Database architecture. Identify the missing component （shown with a "？`"= in the Flashback Database architecture.（）

A. DBWn
B. RVWR
C. ARCH
D. RECO
E. TRWR

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单项选择题

You have created a resource plan， DB_PLAN， using DBMS_RESOURCE_MANAGER.CREATE_SIMPLE_PLAN and you want to impose a restriction on utilization of resources by the database users. Which step must be performed before you can start using the resource plan？（）

A. assign users to consumer groups
B. set the resource plan for the instance
C. configure a simple resource plan and specify plan directives
D. configure a complex resource plan and specify plan directives

单项选择题

While setting up the threshold for tablespace space usage metrics for one of your tablespaces， you define the critical threshold as 60% and warning threshold as 75%. What would be the result of this setting？（）

A. It would result in an error because the warning threshold cannot be more than the critical threshold.
B. The warning threshold is ignored and alerts would be generated when space usage exceeds the critical threshold.
C. The critical threshold is ignored and alerts would be generated when space usage exceeds the warning threshold.
D. Both threshold values are used and alerts are generated when space usage exceeds the respective threshold values.

单项选择题

Manually， you set the consumer group of all of the newly created users to MYDB_GRP. You want the users to be able to change their consumer groups as per the application requirement. What was the first step that was needed in the process to achieve this objective？（）

A. The user must have been granted the DBA role.
B. The user must have been granted the switch privilege as a part of a role.
C. The user must have been granted the Resource Manager administrator privilege.
D. The user must have been granted the switch privilege by using the DBMS_RESOURCE_MANAGER_PRIVS package.