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？（）

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  A .  du  B .  df  C .  fsck  D .  ncheck

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• A system has a mirrored data volume group that has a filesystem /data of 10 logical partitions. How many physical partitions will the filesystem have?（）

  A . 1 B . 2 C . 10 D . 20

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• 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.

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• A previously functional, scheduled snapshot operation against a JFS2 filesystem has failed. The JFS2 filesystem is mounted and appears intact. What is the most likely cause of the failure and how should it be resolved?（）

  A . The associated JFS2 log device has failed. Check the log device and varyon the device. B . The logical volume that hosts the snapshots is full. Increase the size of the logical volume. C . Fifteen snapshots already exist for the given JFS2 filesystem. Delete at least one existing snapshot. D . The volume group that hosts both the snapshots and JFS2 filesystem has lost quorum. Check and correct the integrity of the volume group.

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• When is it appropriate to use a JFS filesystem instead of a JFS2 filesystem？（）

  A . When the filesystem will contain 100GB files. B . When the filesystem resides on a 32-bit system. C . When the filesystem contains a large number of small files. D . When filesystem compression is required due to limited disk space.

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• The ‘fsck -p /dev/lv00’ command returned the following message：Not a recognized filesystem type. What is the likely cause of the problem and how should it be resolved？（）

  A . The file system superblock is dirty. It can be replaced from the VGDA B . The logical volume superblock is dirty. It can be replaced from the VGDA C . The file system superblock is dirty. It can be replaced from the secondary copy D . The logical volume superblock is dirty. It can be replaced from the secondary copy

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• The rootvg disk on a system failed and was replaced. The system was restored using the latest mksysb. However， no files in the /home filesystem were restored. What is the likely cause of this problem？（）

  A . The new drive is too small to hold the entire rootvg B . The /home filesystem was not mounted during creation of the mksysb C . The /home stanza in the bosinst.data contained an entry ’restore=no’ D . The /home filesystem was NFS exported to another system during creation of the mksy

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• You created a snapshot of the /data2 filesystem as follows：   # fssnap -F ufs -o bs=/data2/snap /data2   But， the system responds with the following error： snapshot error： Invalid backing file path   What is the problem？ （）

  A .  The /data filesystem does not exist. B .  This message indicates that the /data2/snap directory does not exist. C .  The name of the Backing Store is incorrect， it should be /dev/fssnap/0 D .  This message indicates that you cannot have the backing store file on the same filesystem as the filesystem being snapped.

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• 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 /data B . chfs -A no /data C . mount -t nfs /data D . chfs -a type=nfs /data

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• Company.com complains that an outage is required when adding a new filesystem to cluster. The  System management function of HACMP （C-SPOC） functions in which manner when adding filesystems to a cluster？（）  

  A .  Adds to all nodes with the cluster running. B .  Adds to all nodes with the cluster stopped. C .  Adds with the cluster running，uses "Lazy Update" to perform the logical volume synchronization. D .  Adds to all nodes with the cluster running but requires the volume groups to be exported andimported after.

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• In AIX 5L and later， the operating system supports the /proc filesystem. What would be the best description of the /proc filesystem？（）

  A .  It is a pseudo filesystem that maps processes and kernel data structures to corresponding files. B .  It is a JFS mounted filesystem that provides an exact representation of what is happening to a proces at a single and discrete point of time. C .  It is a JFS mounted filesystem that maps processes and read-only files related to these processes. D .  It is a pseudo filesystem that contains data that represents the state of the parent processes （but not their threads） in a system.

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• Companycom would like the ability to shrink filesystems. They currently have JFS filesystems. Which of the following is necessary to shrink the filesystems?（）

  A . Copy the existing filesystems to JFS2 B . Defragment the filesystem， then reduce its size C . Change the file system attribute allow_shrink=yes on the existing filesystems D . Modify the logical volume attribute allow_shrink=yes on the existing logical volume

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• An  administrator  notices  the  /  filesystem  is  98%  full.   Which  of  the  following  files  commonly  grow  rapidly（）

  A . /var/adm/wtmp B . /etc/security/failedlogin C . /smit.script D . /proc

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• 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.

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• 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.

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• In order to ensure best read performance， which of the following indicates how large an application’s read buffer size should be if the filesystem to be read is striped across N disks using LVM striping？（）

  A .  N times the stripe unit size B .  N times the VMM minfree parameter C .  The same value as that of the VMM maxfree parameter D .  The same value as that of  the VMM maxrndwrt parameter

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• A pSeries server is being used as a file server and all data is stored on a non-root volume group and resides on mounted filesystems. Which of the following commands provides the quickest way to backup all of the data and filesystem definitions？（）

  A . tar B . cpio C . savefs D . savevg

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• When running the jfs2 filesystem on a user volume group which of the following options is TRUE?（）

  A . Only the 64bit kernel is supported.  B . Filesystem compression is not supported.  C . Filesystem compression is supported only if the 64bit kernel is running.  D . Filesystem compression is supported running either a 32bit or 64bit kernel.

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• Which of the following commands will display what space is used in /tmp filesystem?（）

  A . df -Ik /tmp B . df -fk /tmp C . df -Uk /tmp D . df -Fk /tm

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• The operator needs to change the /test filesystem in the testvg volume group so that it mounts automatically following a system reboot. Which of the following commands is correct?（）

  A . chvg -a y testvg B . chfs -A yes /test C . mount /test -auto=yes D . chlv -a automount=y testlv

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• A system administrator used the savevg command to back up the testvg each night. There is now a requirement to exclude the /test/static filesystem from the backup. How can this be accomplished？（）

  A . Use the -X flag on the savevg command B . Put an entry in the /etc/exclude.testvg file C . Remove the /test/static entries from the /vgdata/testvg.data file D . Use the touch command to create /test/static/.exclude before using savevg

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• The ‘fsck -p /dev/lv00’command returned thefollowing message: Not a recognized filesystem type What is the likely cause of the problem and how should it be resolved?（）

  A . The file system superblock is dirty. It can be replaced from the VGDA B . The logical volume superblock is dirty. It can be replaced from the VGDA C . The file system superblock is dirty. It can be replaced from the secondary copy D . The logical volume superblock is dirty. It can be replaced from the secondary copy

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• 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.

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• Which of the following is the correct command to list the filesystems in datavg?（）

  A . lsvg -p datavg B . lsvg -l datavg C . lsvg -L datavg D . lsvg -o datavg

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