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You are required to remove the default EXTPROC entry from the default listener configuration to create a listener that will listen specifically for EXTPROC calls. Which two methods can you use to remove the default EXTPROC entry from the default listener configuration？ （）
A: the RMAN utility
B: the import/export utility
C: the Oracle Enterprise Manager
D: the change tracking feature
E: the Net Manager utility

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出自：Oracle认证

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