OCP 1Z0 052 45

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.

Answer: A

B

RBAL In an ASM instance, it coordinates rebalance activity for disk groups. In a database instances, it manages ASM disk groups.

C

Onnn slave
processes are spawned on demand. These processes communicate with the ASM instance.

D

MMAN This process performs the resizing of memory components
on the instance.

The manageability monitor process (MMON) performs many tasks related to the Automatic
Workload Repository (AWR). For example, MMON writes when a metric violates its threshold value, taking snapshots, and capturing statistics value for recently modified SQL objects.

The manageability monitor lite process (MMNL) writes statistics from the Active Session History (ASH) buffer in the SGA to disk. MMNL writes to disk when the ASH buffer is full.