1. Which three are true about interpreting Recovery Manager(RMAN、error stacks returned to standard output（）?
   A、If an RMAN command fails, the output will only identify the command that failed
   B、If an RMAN command fails, the output will identify the channel ID where the failure occurred.
   C、Media Management errors appear as a line with’ sbtio
   D、Some messages in the error stack are not errors .
   E、Media Management errors appear as a line with” Additional information and a number.
   F、Media Management errors appear as a line with sbtio and a number.

答案:BDEhttp://www.cndba.cn/hbhe0316/article/108634http://www.cndba.cn/hbhe0316/article/108634

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