单项选择题
A.varyon of the paging device failed.
B.fsck of the root （/） filesystem failed.
C.varyon of the root volume group failed.
D.IPL device could not be opened or a read failed.
单项选择题 A booting system appears to be hanging with an LED code of 0c54. What is the likely cause？（）
单项选择题 An application writes to a log file in the /logs filesystem that is full. After the log file is deleted，‘df’ still shows the filesystem as 100% full. What is the likely cause of the problem and what will resolve it？（）
单项选择题 Whichcommandwillretrieve/unixanddumpfromthedumpdevice？（）