33.You want to perform the following operations for the DATA ASM

33.You want to perform the following operations for the DATA ASM disk group: -Verify the consistency of the disk. -Cross-check all the file extent maps and allocation tables for consistency. heck whether the alias metadata directory and file directory are linked correctly. -Check that ASM metadata directories do not have unreachable allocated blocks. Which command accomplishes these tasks?

A.ALTER DISKGROUP data CHECK;

B.ALTER DISKGROUP data CHECK DISK;

C.ALTER DISKGROUP data CHECK FILE;

D.ALTER DISKGROUP data CHECK DISK IN FAILURE GROUP 1;

正确答案是A