45.Which statement is true about the Manageability Monitor (MMON) background process?
A.It transfers statistics from memory to disk at regular intervals.
B.It coordinates the rebalance activity for disk groups when ASM is used.
C.It communicates with the Automatic Storage Management (ASM) instance on behalf of the database instance.
D.It performs dynamic memory management when Automatic Shared Memory Management is enabled for the database instance.
答案:A
解析:这道题说的是mmon后台进程是干啥的
mmon就是将awr的统计信息存储到磁盘上
参考:http://docs.oracle.com/cd/E11882_01/server.112/e40540/process.htm#CNCPT9841
B:说的是asm磁盘组平衡,这个应该是RBAL(Rebalance Master Process)
C:说的是asm和实例通讯,这个应该是ASMB(ASM Background Process)
D:说的是当启用asmm的时候,执行动态内存管理,这个是mman干的事
A.It transfers statistics from memory to disk at regular intervals.
B.It coordinates the rebalance activity for disk groups when ASM is used.
C.It communicates with the Automatic Storage Management (ASM) instance on behalf of the database instance.
D.It performs dynamic memory management when Automatic Shared Memory Management is enabled for the database instance.
答案:A
解析:这道题说的是mmon后台进程是干啥的
mmon就是将awr的统计信息存储到磁盘上
参考:http://docs.oracle.com/cd/E11882_01/server.112/e40540/process.htm#CNCPT9841
B:说的是asm磁盘组平衡,这个应该是RBAL(Rebalance Master Process)
C:说的是asm和实例通讯,这个应该是ASMB(ASM Background Process)
D:说的是当启用asmm的时候,执行动态内存管理,这个是mman干的事