单选题When is it appropriate to use a JFS filesystem instead of a JFS2 filesystem?()AWhen the filesystem will contain 100GB files.BWhen the filesystem resides on a 32-bit system.CWhen the filesystem contains a large number of small files.DWhen filesystem compression is required due to limited disk space.

单选题
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.


参考解析

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单选题The officer of the watch should use radar when appropriate and at all times in()waters.AcongestingBcongestedCcongestionDcongest

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单选题A system administrator has determined that the /development filesystem needs to be changed from JFS to JFS2 to take advantage of the new capabilites available in JFS2. What is the method to convert the /development filesystem from type JFS to JFS2?()AUmount the /development filesystem and remount it using the following command: mount -t jfs2 /developmentBEdit the /etc/filesystems file to change the type paramter to jfs2 and change the log parameter to jfs2logCBackup the /development filesystem data, delete the JFS /development filesystem, create the new JFS2 /development filsystem, and restore the data to the /development filesystemDBackup the /development filesystem data, change the /development filesystem using the following command,chfs -t type=jfs2 /development.then, restore the data to the /development filesystem

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单选题An administrator needs to apply a Technology Level update. During the preview install, the output indicates that there is insufficient space in the /usr filesystem. Review of the root volume group indicates there are no available physical partitions, but the /test jfs2 filesystem is only 8% used.  What is the most efficient method to use the available space in the /test filesystem to apply the update?()AUse chfs to reduce the /test filesystemBUse cplv to copy the /test filesystem to a smaller logical volumeCUse migratepv l to move the /test filesystem to a different volume groupDBackup the /test filesystem, remove it, and recreate it with a smaller size

单选题The system administrator notices that there is an I/O bottleneck on one of three disks in datavg volume group. This problem disk contains the JFS log, loglv00 and one filesystem, /mydatabase.  There are no other logical volumes on this disk.  Which of the following options would be the best solution?()A Increase the size of the JFS log logical volume so more transacations can be written to this log.B Create a second, additional JFS log and have the /mydatabase logical volume point to both JFS logs.C Migrate the JFS log device to another physical disk in the same volume group.D Only one JFS log device for each volume group can be used.  Use the migratepv command to move the JFS log device to an empty disk in another volume group.

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?()AThe number of bytes per inode can be specified.BPlacement of the filesystem on the disk can be specified.CThe jfslog can be specified on creation of the filesystem.DEither a JFS or JFS2 filesystem can be created on the logical volume.

单选题An Enhanced Journeyed File System that is in a shred non-concurrent Volume Group is growing  at an unexpected rate. It is the administrator’s task to enlarge the filesystem without interrupting service.  What method should be sued to achieve this goal?()A Use HACMP C-SPOC to increase the size of the JFS2 filesystem.B Use the smitty jfs2 fastpath to increase the size of the JFS2 filesystem.C Use HACMP C-SPOC to increase the size of the JFS2 filesystem and inline JFS2 logs.D Use mklvcopy hdisk# 2 jfs2lvname to increase the size of the JFS2 filesystem,then use splitlvcopy jfs2lvname 1 -y newjfs2lvname hdisk# to present the increased JFS2 filesystem to HACMP.

单选题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.