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Oracle认证考试

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Note the following functionalities of various background processes:  1:Record the checkpoint information in data file headers. CKPT  2:Perform recovery at instance startup. SMON  3:Cleanup unused temporary segments. SMON  4:Free the resources used by a user process when it fails.  5:Dynamically register database services with listeners.  6:Monitor sessions for idle session timeout.  Which option has the correct functionalities listed for a background process()

  • A、Archiver Process (ARCn):1, 2,5
  • B、System Monitor Process (SMON):1,4,5
  • C、Process Monitor Process (PMON):4,5,6
  • D、Database Writer Process (DBWn):1,3,4
正确答案:C
答案解析:
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