Oracle
1Z0-062 · Question #50
1Z0-062 Question #50: Real Exam Question with Answer & Explanation
The correct answer is D: MMAN. Automatic Shared Memory Management relies on the MMAN background process to dynamically resize SGA components within the total SGA_TARGET limit.
Question
Which background process does Automatic Shared Memory Management use to coordinate the sizing of memory components?
Options
- APMON
- BSMON
- CMMNL
- DMMAN
- EMMON
Explanation
Automatic Shared Memory Management relies on the MMAN background process to dynamically resize SGA components within the total SGA_TARGET limit.
Common mistakes.
- A. PMON (Process Monitor) cleans up failed user processes and releases resources, and has no role in SGA memory sizing.
- B. SMON (System Monitor) handles instance recovery, coalesces free space in tablespaces, and manages temporary segments, but does not manage shared memory sizing.
- C. MMNL (Manageability Monitor Light) performs lightweight tasks such as flushing the Active Session History buffer to disk, not SGA component sizing.
- E. MMON (Manageability Monitor) performs manageability tasks such as taking AWR snapshots and issuing server alerts, not automatic memory resizing.
Concept tested. ASMM coordinator background process identification (MMAN)
Reference. https://docs.oracle.com/en/database/oracle/oracle-database/19/cncpt/memory-architecture.html
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