A system administrator has placed an AIX base media CD-ROM in a server and initiated a reboot. The server has an ascii terminal attached to it. Which key or key combination must the administrator press to initiate the maintenance mode？（）

Amirroredrootdiskneedstobereplaced.Whichofthefollowingc...

单项选择题A mirrored root disk needs to be replaced. Which of the following commands will clear the boot record on the failing disk？（）

Asystemadministratorhasdeterminedarootmirroreddisk，hdis...

单项选择题A system administrator has determined a root mirrored disk， hdisk1， needs to be replaced. The root volume has been unmirrored. What is the next step to remove the disk drive？（）

Followingasystemboot，thedisplayindicatesthatpreviouslyd...

单项选择题Following a system boot， the display indicates that previously detected hardware is missing. What command should be used to identify the missing hardware？（）