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单选题
Which of the following attributes is set when a file is ready to be backed up?（）
A
a
B
h
C
r
D
s
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单选题You have a disk group， DGROUP1， with three disk and NORMAL redundancy. You execute the following command to create a template for the disk group： ALTER DISKGROUP dgroup1 ADD TEMPLATE my_temp ATTRIBUTES （MIRROR FINE）；Which statement is true？（）A
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noB
chdevC
vmtuneD
schedtune
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单选题Which of the following statements are FALSE concerning the defragfs command？（）A
The defragfs command should not be run against file systems and logical volumes that contain mostly transitory information， such as /tmp.B
The defragfs command should not be run on a large JFS2 file system when running on a 32-bit kernel.C
The defragfs command can improve file system performance by increasing the file system’s contiguous free space.D
The defragfs command can only be run against file systems that are mounted with read-write permissions.
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单选题Which of the following is a differentiating feature of file permissions as compared to share permissions？（）A
File permissions are less granular than share permissions.B
Full control can only be set using file permissions.C
File permissions are more granular than share permissions.D
Full control can only be set using share permissions.
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RMAN reads the block change tracking file only when it performs the incremental level 0 backup.B
RMAN reads the block change tracking file when it performs both incremental backups.C
RMAN reads the block change tracking file only when it performs the incremental level 1 backup.D
RMAN does not read the block change tracking file when it performs either incremental backup.
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单选题Which data dictionary views displays the error information related to a data file， when an internal read fails on that file？（）A
V$DATAFILEB
V$DATAFILE_HEADERC
DBA_DATA_FILESD
V$DBFILEE
V$DATAFILE_ERRORS
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