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单选题
A system administrator thinks that a filesystem may be full and that is what caused the machine to crash. Which command will show the administrator if they are correct?（）
A
du
B
df
C
fsck
D
ncheck
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A system administrator is monitoring a system that has recently shown a decrease in performance.The administrator suspects that the system may be low on memory and may be paging excessively.Which of the following commands is best to identify a possible paging problem？（）A、iostatB、netstatC、psD、vmstat
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单选题The /systest filesystem is associated with the /dev/testlv logical volume on the testvg volume group. The testvg volume group is assigned to physical volumes hdisk2 and hdisk3. Which command can the system administrator use to determine if the /systest filesystem is mirrored？（）A
dfB
lslvC
lsfsD
lsdev
考题
单选题While attempting to expand a file system， an administrator receives an error message indicating that the filesystem is not recognized. Running the ’lsfs’ command fails to display any output， but the ’df’ command is working and displays normal filesystems. What is the likely cause of the problem？（）A
The /etc/filesystems file is missing.B
The /dev/hd8 logical volume is corrupt.C
The hosting volume group is not varied on.D
The /var and /tmp filesystems may be full.
考题
单选题Which of the following is the LAST step an administrator should take when troubleshooting an issue？（）A
Identify changes to the system.B
Replicate the problem in the system.C
Verify full system functionality. D
Implement the solution.
考题
单选题A system administrator can create logical volumes and then add file systems to them， or create the file system directly. What is an advantage of the two-step approach instead of the one-step approach？（）A
The number of bytes per inode can be specified.B
Placement of the filesystem on the disk can be specified.C
The jfslog can be specified on creation of the filesystem.D
Either a JFS or JFS2 filesystem can be created on the logical volume.
考题
单选题An administrator notices the / filesystem is 98% full. Which of the following files commonly grow rapidly（）A
/var/adm/wtmpB
/etc/security/failedloginC
/smit.scriptD
/proc
考题
单选题An application writes to a log file in the /logs filesystem that is full. After the log file is deleted, 'df' still shows the filesystem as 100% full. What is the likely cause of the problem and what will resolve it?（）A
The deleted file is still open by the application.The system must be rebooted before'df' will show the reduction in the filesystem.B
The deleted file is still open by the application.The application must be stoppedbefore 'df' will show the reduction in the filesystem.C
The filesystem is still marked as full in the /etc/fs.status file.The system must be rebooted before 'df' will show the reduction in the filesystem.D
The filesystem is still marked as full in the /etc/fs.status file.The application must be stopped before 'df' will show the reduction in the filesystem.
考题
单选题A system administrator has filesystems that should not be mounted during system startup. How can the system administrator prevent the /data filesystem from being mounted during subsequent boots？（）A
mount -no /dataB
chfs -A no /dataC
mount -t nfs /dataD
chfs -a type=nfs /data
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