A. etc .rhosts and $HOME hosts.equivB. etc hosts.equiv ……

单项选择题Which command will purge the errorlog of all recorded occurrences of a given SRN?（）

A.errclear 0
B.errpt -r -j <SRN>
C.errclear -j <SRN>
D.errclear -k <SRN>

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What is the objective of the superstrict option that can be used when creating mirrors?（）

A.Allows the mirror partitions to spread across a maximum number of disks.
B.Allows the copy of a partition to be on the same physical volume as the mirrored partition.
C.Prevents partitions allocated to one logical volume mirror from sharing a physical volume with partitions from another logical volume mirror.
D.Forces copies of logical partitions to be housed on different physical volumes, while allowing a single physical volume to be shared by logical volume mirrors.

单项选择题An administrator wants to test the performance of an application at different memory sizes. What is the most effective way to perform the test and collect statistical information for each test?（）

A.Run DLPAR to change the LPAR memory for each test.
B.Run rmss command to simulate different memory for each test.
C.Run chdev command to limit the system memory size for each test.
D.Run chattr command to limit the system memory size for each test.

单项选择题A user has written a script that is not running correctly and asks an administrator for help. Without adding anything to the script, how can the administrator determine the cause of the problem?（）

A.Run the script with an 'sh -x' in front.
B.Run the script with a 'ksh -v' in front.
C.Type debug into the command line before running the script.
D.Type 'set -x' into the command line before running the script.