Which two are regarding automatic space management segments?()
AA
BB
CC
DD
Using the LIST command in Recovery Manager (RMAN), which two pieces of information in the RMANrepository can be listed?()
Astored scripts in the recovery catalog
Bbackups that can be deleted from disk
Cbackup sets and image copies are obsolete
Dbackups that do not have the AVAILABLE status in the RMAN repository RMAN
要打开一个视图以便浏览或更新其中的数据,可以使用命令( )。
A、USE
B、USEVIEW
C、BROWSE
D、BROWSEVIEW
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
在堆栈类SharedStack的定义中,为了保证堆栈在并发操作中数据的正确性,应在下划线处填入的修饰符是( )。(两个下划线的填写内容相同)public class SharedStack { ______ int idx = 0; ______ char[] data = new char[10]; public synchronized void push(char c){……} public synchronized void pop(){……}}
A、public
B、不使用修饰符
C、private
D、protected
()是正确的E-mail地址。
A、mailto:Webmaster@ceiaeC.org
B、Wmailto:master@ceiaec.org
C、http://www.ceiaeC.org
D、D.http://www.ceiaeorg