单项选择题 Which method will configure an e-mail notification when permanent hardware errors are logged in the errorlog?（）

单项选择题 A filesystem failed to successfully mount, indicating the error message. 0506-324 - cannot mount media not formatted or invalid format 0506-342 - Superblock is dirty run fsck. Which parameter can be passed to the fsck command to automatically take any remedial action required?（）

单项选择题 Which system provides redundant system clocks?（）