（142）In which situations will the ASM metadata backup help you recover the ASM disk in a disk group? (Choose all that apply.)

A. when one or more file directory paths are accidentally deleted from an ASM disk group

B. when one of the disks in a disk group is accidentaly unplugged

C. when the data file on an ASM disk group gets corrupted

D. when one or more disks in an ASM disk group are lost

答案：（A、D）

解析：

《Automatic Storage Management Administrator's Guide》 4.11