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17.A server contains two volume goups:rootvg and appsvg.The system administrator would like to use mksysb to make an entire backup of this system.Using tape device rmt0,which of the following commands does the system administrator need to issue in order to create a bootable backup tap of this entire system?
a.mksysb -ei rmt0 -vg appsvg
b.mksysb -i /dev/rmt0 -f appsvg
c.mksysb -ei /dev/rmt0 -vg appsvg
d.mksysb can not accomplish this task
22.The production system has been runing well until more users were placed on the filesystem. Base on the vmstat output.what action should the administrator take to restore the response time to an acceotable level?
$vmstat 5 5
kthr memory page faults cpu
r b avm frm re pi po fr sr cy in sy cs us sy id wa
0 0 34936 123 0 15 80 0 1589 0 125 430 26 49 43 7 1
3 2 34894 11967 0 23 86 0 3234 0 1029 6673 349 12 78 2 5
2 2 34894 11967 0 20 80 0 1825 0 1017 2522 128 25 63 1 11
2 2 24891 11969 0 21 80 0 876 0 1048 4592 208 46 34 7 13
1 2 34891 11969 0 20 84 0 1349 0 961 2010 104 23 64 4 11
a.add more RAM
b.add 2 addtional CPUs.
c change "the wait" to 65536
d.add an additional FDDI adapter
26.The system administrator needs to change the time zone form the default of "Central" to "Eastern". After the change is made.using the chtz command.when will it take effect?
a. at next login b.after a reboot
c. immediately after the chtz command is run
d. after the time syncronization daemomn is restarted
35.The performance of a new database server has deteriorated to an unacceptable level and serveral processes have been unexpertantly failed.Which of the following is the most likely the cause of the problem?
a. the rss ulimit is set to low
b. the /usr filesystem is 100% full
c.The paging space has been filled
d. there are not enough configured shared memory segments.
79.which of the following files can be used to include user applications in the shutdown process?
a./etc/inittab b./sbin/rc.boot
c.rc.shutdown d./etc/init.d/rc2/k01userapp
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发表于 2005-05-16 16:04
