496.Which two statements are true regarding an Automatic Storage Management (ASM) instance?
(Choose two.)
A. As ASM instance mounts an ASM control file
B. An ASM instance uses the ASMB process for rebalancing of disks within a disk group
C. Automatic Memory Management is enabled in an ASM instance even when the MEMORY_TARGET
parameter is not set explicitly
D. An RDBMS instance gets connected to an ASM instance using ASMB as a foreground process when
the database instance is started
Answer: CD
答案解析：
参考：http://blog.csdn.net/rlhua/article/details/12972983
A错，ASM实例装载的是ASM_DISKGROUPS，不是ASM控制文件。
ASM 实例默认启用自动内存管理，即使未明确设置MEMORY_TARGET参数也是如此。
数据库实例与ASM 之间的交互中使用ASMB 数据库进程接收新文件的区映射。