单选题A system administrator is attempting to unmount filesystem /dev/data and receives the following message：   umount： 0506-349 Cannot unmount /dev/data： The requested resource is busy.   Which of the following commands can be used to determine which proce

第1题：

An administrator is attempting to recover a filesystem that fails to manually unmount. The fsck command produces the following output： The current volume is： /dev/fslv02 File system is currently mounted.   Invalid file system size in the primary superblock. Invalid file system size in the secondary superblock.  Primary superblock is corrupt. Secondary superblock is corrupt.   fsck： 0507-018 Superblock is corrupt and cannot be repaired. Both primary and secondary copies are corrupt.Cannot continue tried to mount  Which steps will resolve the problem？（）

• A、Reboot the server into maintenance mode and run ‘fsck’ with the ‘-p’ parameter while the filesystem is mounted.
• B、Reboot the server into maintenance mode and run ‘fsck’ with the ‘-y’ parameter while the filesystem is unmounted.
• C、Force a umount of the filesystem with ‘umount -F /dev/fslv02’， and then run ‘fsck -p /dev/fslv02’ while the filesystem is unmounted.
• D、Force a umount of the filesystem by varying off the hosting volume group and then varyon the volume group. This will permit ‘fsck -y’ to be run against the failing filesystem.

第2题：

While using the smit install_remove menus to remove some filesets on an AIX 5.3 server， a system administrator notices the /usr filesystem is now unnecessarily large.  Which of the following actions will reduce the size of the /usr filesystem （）

• A、Backup， unmount， remove， recreate and restore the filesystem.
• B、Boot from mksysb tape and select Shrink filesystems on restore.
• C、Unmount， run defragfs /usr and the reducefs -size n /usr commands.
• D、Update the /image.data file with the desired size for /usr and reboot the system.

第3题：

14将光盘/dev/hdc卸载的命令是：（）

• A、umount /dev/hdc
• B、unmount /mnt/cdrom /dev/hdc
• C、unmount /dev/hdc
• D、umount /mnt/cdrom /dev/hdc

第4题：

A system administrator is unable to unmount a file system. Which is the appropriate command to determine who or what is accessing the file system？（）

• A、who /filesystem
• B、lsfs /filesystem
• C、fuser /filesystem
• D、umount -f /filesystem

第5题：

A system administrator has a filesystem called /test/data in volume group datavg. Which of the following commands will allow the administrator to create a mirrored copy of the filesystem’s data？（）

• A、chfs
• B、chlv
• C、mklvcopy
• D、mkfscopy

第6题：

Which of the following procedures WILL NOT increase contiguous free space on a the filesystem /data1， located on /dev/lv01， that is heavily fragmented？（）

• A、 Run defragfs -r /data1； defragfs /data1
• B、 Run defragfs -r /dev/lv01； defragfs /dev/lv01
• C、 Back up the filesystem by name， unmount the filesystem， recreate the filesystem by running mkfs /dev/lv01， and restoring the data from the backup.
• D、 Back up the filesystem by inode， unmount the filesystem， recreate the filesystem by running mkfs /dev/lv01， and restoring the data from the backup.

第7题：

A system administrator has been asked to migrate the dev_vg volume group from server A to server B. The dev_vg volume group contains a single filesystem named "/development". To prepare for migration， which of the following is the correct sequence of commands for removing the volume group from server A？（）

• A、exportvg dev_vg； umount /development； varyoffvg dev_vg
• B、varyoffvg dev_vg； umount /development； exportvg dev_vg
• C、umount /development； exportvg dev_vg； varyoffvg dev_vg
• D、umount /development； varyoffvg dev_vg； exportvg dev_vg

第8题：

The /systest filesystem is associated with the /dev/testlv logical volume on the ’testvg’ volume group. Given this information， which of the following commands can the system administrator use to determine if the /systest filesystem is mirrored？（）

• A、df
• B、lsvg
• C、lsfs
• D、lsdev

第9题：

A System p administrator is attempting to restore some files from a backup tape. The restore failed. The system administrator suspects the block size of the tape drive is incorrect.  Which of the following commands can be used to determine the block size of the backup tape （）

• A、dd
• B、tar
• C、cpio
• D、restore

第10题：

A system administrator is attempting to unmount filesystem /dev/data and receives the following message：   umount： 0506-349 Cannot unmount /dev/data： The requested resource is busy.   Which of the following commands can be used to determine which process has open references within the filesystem？（）

• A、lsfs
• B、topas
• C、fuser
• D、mount