多項選擇題

Which two statements are true regarding the functionality of the remap command in ASMCMD？（）

A. It repairs blocks that have read disk I/O errors.
B. It checks whether the alias metadata directory and the file directory are linked correctly.
C. It repairs blocks by always reading them from the mirror copy and writing them to the original location.
D. It reads the blocks from a good copy of an ASM mirror and rewrites them to an alternate location on disk if the blocks on the original location cannot be read properly.

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多項選擇題

Examine the following RMAN command：
BACKUP DATABASE TAG TESTDB
KEEP UNTIL ’SYSDATE+1’ RESTORE POINT TESTDB06；
Which two statements are true regarding the backup taken by using the above RMAN command？（）

A. Only data files and the control file are backed up.
B. Archived redo logs are backed up only if the database is open during the backup.
C. The backup is deleted after one day，regardless of the default retention policy settings.
D. The backup becomes obsolete after one day，regardless of the default retention policy settings.

單項選擇題

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. check 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

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Which two statements are true regarding the functionality of the remap command in ASMCMD？（）

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Examine the following RMAN command： BACKUP DATABASE TAG TESTDB KEEP UNTIL ’SYSDATE+1’ RESTORE POINT TESTDB06； Which two statements are true regarding the backup taken by using the above RMAN command？（）

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Which two statements are true regarding the functionality of the remap command in ASMCMD？（）

Examine the following RMAN command：
BACKUP DATABASE TAG TESTDB
KEEP UNTIL ’SYSDATE+1’ RESTORE POINT TESTDB06；
Which two statements are true regarding the backup taken by using the above RMAN command？（）