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?（）Adu Bdf Cfsck Dncheck

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：

A system administrator has just installed a new maintenance level， but "oslevel -r" does not show the correct maintenance level. What command can be used to determine which filesets are downlevel？（）

• A、lppchk
• B、instfix
• C、fixdist
• D、maintlvl

第3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.

第4题：

A system administrator decides to review the system error log after installing new hardware. Which of the following is the correct command to use？（）

• A、errpt
• B、syslog
• C、prtdiag
• D、errlogger

第5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

第6题：

After using the alt_disk_install command to clone a system image to another disk, the system administrator noticed a large number of defined devices not allocated to the LPAR. Which of the following is the most likely cause of this situation?（）

• A、The cfgmgr command was not run to reconfigure the devices
• B、The machine was not booted into SMS MultiBoot mode after configuration
• C、The machine was not in full system partition mode when the volume was created
• D、The alt_disk_install command was not run with the -O option to remove references in the ODM

第7题：

The df command indicates that a filesystem is full， however， the du command indicates that not all space is allocated.  How would the system administrator isolate the discrepancy（）

• A、Use the fuser command to identify deleted but open files.
• B、Use the ipcs command to view orphan shared memory segments.
• C、Use the defrag command to determine if the filesystem is fragmented.
• D、Use the topas command to identify processes using the most system resources.

第8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 stopped before ‘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.

第9题：

A System p administrator is reviewing root’s command history on a development server and finds that a junior adminstrator had been attempting to correct a full file system. One of the following commands caused damage that must be corrected.  Which command was it（）

• A、rm /var/preserve/*
• B、cat /dev/null > /var/adm/cron/log
• C、> /var/adm/wtmp
• D、rm /var/adm/ras/errlog

第10题：

A system administrator created a /etc/exports file on server "Alpha" and entered a filesystem to be exported to server "Bravo." However， the remote servers are unable to mount the filesystems. What does the system administrator need to do？（）

• A、Use the exportfs command on server "Alpha" to export the filesystem
• B、Use the showmount command on server "Bravo" to import the filesystem
• C、Use the startsrc command on server "Bravo" to refresh the NFS daemons
• D、Use the chfs command on server "Alpha" to change the filesystem type to NFS