From the logistical system viewpoint, some factors are fundamental to transportation performance, they are ()

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• Which of the following commands is used to clear all entries from the system error log? （）

  A .  errpt -c  B .  errclear -j 0  C .  errclear 0  D .  startsrc -s syslogd

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• Which action changes the default editor for ALL users on the system from vi to edit？（）

  A . Issue the command：export EDITOR=/usr/bin/edit edit each users .profile to change the EDITOR value to /usr/bin/edit B . Modify /.profile and change the EDITOR variable to /usr/bin/edit C . Modify /etc/environment and add EDITOR=/usr/bin/edit export EDITOR D . Modify /etc/security/defaults and change the EDITOR value to /usr/bin/edit

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• Which key should be pressed on an ASCII terminal during the system initialization to force the system to read from the default boot list？（）

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• The system administrator mirrored the rootvg from hdisk0 to hdisk1 and needs to ensure the system would boot from hdisk1 if hdisk0 failed. Which of the following commands would be used to accomplish this？（）

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• Which key should be pressed on an ASCII terminalduring the system initialization to force the system to read from the default bootlist?（）

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• Which action changes the default editor for ALL users on the system from vi to edit of the following？（）

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  Macao also benefits from the principles of “one country, two systems”. ()

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