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单选题
Which command can a system administrator use to verify that a tape is in backup format and is readable by the system？（）
A
tar
B
tctl
C
tcopy
D
restore
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单选题A system administrator just completed an AIX installation but suspects that not all filesets installed completely. Which command should be run to verify that all filesets are completely installed？（）A
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lppchkD
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单选题The administrator wants to verify the current state of the OSPF database loading process. Which show command should the administrator use?（）A
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dfB
lslvC
lsfsD
lsdev
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单选题An operator just completed a repair to a disk subsystem that contains a disk heartbeat. Before returning the system back into production mode， there is a requirement to verify the disk heartbeat is functioning. How should the operator determine if the disk heartbeat network functioning？（）A
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Use the dhbread command to verify the disk heartbeat linkD
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As the root user from serverA run the command rlogin serverBC
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As the desired user from serverA run the command rlogin serverB
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lslppB
lppchkC
instfixD
installp
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cat /proc/usr/lparchk B
cat /proc/ppc64/lparcfg C
/var/adm/tools/res_list D
/var/adm/tools/lparalloc
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