A system administrator wants to perform some system maintenance. The AIX installation CD is in the CDROM drive， however the system will not boot from the CD. Which command will assist in determining if the CDROM drive is currently a bootable device？（）

单项选择题Whichcommandwouldanadministratorusetoaddstartupscriptstothesystemstartupprocess？（）

A.chitab
B.vi /etc/inittab
C.vi /sbin/rc.boot
D.mkitab

单项选择题Whatsystemstartupfilewouldanadministratoreditforstartingupmiscellaneousthirdpartyapplications？（）

A./etc/rc.net
B./etc/rc.boot
C./etc/rc.local
D./etc/rc.tcpip

单项选择题Duringsysteminitialization，whichcommandscriptisexecutedthroughthe etc inittabtoactivatepagespacesandmountfilesystems？（）

A.rc
B.init
C.rc.boot
D.rc.init

单项选择题Whichscriptisexecutedduringsystemstartuptosetthesystemhostname，defaultgatewayandstaticroutes？（）

A./etc/rpc
B./etc/rc.net
C./etc/rc.tcpip
D./etc/resolv.conf

单项选择题DuringrebootthesystemhangswithLED0581thatindicates ConfiguringTCP IP. Whichrecoveryproceduresshouldbetaken？（）

A.Boot in maintenance mode， and verify the Ethernet adapter configuration.
B.Boot in maintenance mode， access the rootvg and check the /etc/inittab for corruption.
C.Boot in maintenance mode， access the rootvg and rebuild the boot image using the bosboot command.
D.Boot in maintenance mode after verifying the network connection， access the rootvg and check the /etc/rc.net file.