You execute the following command to create two consumer groups， FIN_GROUP1 and PAY_GROUP1， for a plan，PROD_PLAN： 
BEGIN 
DBMS_RESOURCE_MANAGER.CREATE_SIMPLE_PLAN （SIMPLE_PLAN => ’prod_plan’， 
CONSUMER_GROUP1 => ’fin_group1’， 
GROUP1_CPU => 80， 
CONSUMER_GROUP2 => ’pay_group1’， 
GROUP2_CPU => 20）; 
END; 
Which three statements are true？（）

单项选择题YouareusingResourceManagertomanagesystemresources.Whilecreatinganewdatabaseuser，youobservethattheuserisamemberofDEFAULT_CONSUMER_GROUPbydefault.Whatwouldbetheimplicationsofthis？（）

A.The Resource Manager plan does not affect the user.
B.There must be a plan directive in any of the plans of the group to control the resources.
C.The members of the group DEFAULT_CONSUMER_GROUP always have resource restrictions.
D.The members of DEFAULT_CONSUMER_GROUP are restrained from accessing the system tables.
E.The members of this group can change their group without the database administrator’s intervention.

多项选择题View the Exhibit and examine the Resource Manager settings for the groups at different levels. Which two effects would be the result of this setting？ （）

A.The members of LOW_GROUP would get more priority than those of OTHER_GROUPS.
B.The members of SYS_GROUP would get most of the CPU allocation at level 1.
C.The members of LOW_GROUP would get most of the CPU allocation because it has CPU allocation at two different levels.
D.The members of LOW_GROUP would get no CPU allocation at level 1 if the members of OTHER_GROUPS are using all the CPU at level 2.
E.The members of SYS_GROUP would get no CPU allocation at level 1 if the members of OTHER_GROUPS are using all the CPU at level 2.