Your production database is running in the ARCHIVELOG mode and the ARCn process is functional. You have two online redo log groups. Which three background processes would be involved when a log switch happens？ （）
- A、archival
- B、log writer
- C、database writer
- D、system monitor
- E、process monitor
- F、change tracking writer
正确答案:A,B,C
答案解析:有
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