A.Missing blvB.Network problemC.Wrong boot tableD.Corru……

单项选择题A SAN needs to undergo disruptive maintenance， which will effect a hosted production system with multiple applications and related volume groups， one of which， datavg， resides on the SAN. There is one spare disk in the system but it is smaller than datavg. How can application outages and risk of corruption be minimized？（）

A.Stop the applications in all data volume groups and shut the system down during the outage period.
B.Stop the applications in datavg，unmount all datavg filesystems，varyoff datavg，and export datavg.
C.Stop the applications in datavg，unmount all datavg filesystems，and reduce datavg by the SAN disks.
D.Use the ’cpvg’ command with the -z option to copy and compress datavg to different physical volumes.

单项选择题Whichcommandshouldbeusedtocapturenetworktrafficbetweenthelocalhostandahostnamed‘webserver’？（）

A.tcpdump webserver
B.tcpdump host webserver
C.tcpdump -hostname webserver
D.tcpdump -print -h webserver

单项选择题Whatshouldanadministratordotoallowthelogonofausertoalocalsystemwithoutlimitationsfromthehost‘webserver’？（）

A.configure the /etc/.rhosts with：webserver
B.configure the root’$HOME/.rhost file with：+webserver
C.configure each user’s $HOME/.rhosts file with：webserver
D.configure the root’$HOME/.rhost file with：webserver

单项选择题HowshouldTCP IPbeconfiguredontheent0networkadapter？（）

A.ifconfig en0 192.168.10.1 netmask 255.255.255.0 gateway 192.168.10.254
B.ifconfig ent0 192.168.10.1 netmask 255.255.255.0 gateway 192.168.10.254
C.mktcpip h test61 -a 192.168.10.1 -i en0 m 255.255.255.0 g 192.168.10.254 -s
D.mktcpip h test61 -a 192.168.10.1 -i ent0 m 255.255.255.0 g 192.168.10.254 -

单项选择题An administrator is moving a volume group from one server to another. The disks will be physically moved between the two systems.  Which two operations are required on the volume group prior to the physical disk switch？（）

A.‘varyoffvg’ and ‘exportvg’
B.‘varyofflv’ and ‘importvg’
C.‘varyofflv’ and ‘migratepv’
D.‘varyoffvg’ and ‘migratevg’