單項選擇題

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

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單項選擇題

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.

單項選擇題

A system contains multiple hot-swap stand-alone disks with a large number of JFS2 file systems. Which feature of JFS2 can be used to improve reliability， availability and serviceability （RAS） if a disk failure occurs？（）

A.Inline logging
B.Dynamic inode allocation
C.Linear directory organization
D.Online filesystem defragmentation

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

A system contains multiple hot-swap stand-alone disks with a large number of JFS2 file systems. Which feature of JFS2 can be used to improve reliability， availability and serviceability （RAS） if a disk failure occurs？（）

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A system contains multiple hot-swap stand-alone disks with a large number of JFS2 file systems. Which feature of JFS2 can be used to improve reliability， availability and serviceability （RAS） if a disk failure occurs？（）