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单选题
What is the correct order of the following commands if you wanted to restore datafile 4， which was accidentally removed from the file system？（） a. sql ’alter database datafile 4 online’ b. restore datafile 4 c. recover datafile 4 d. sql ’alter database datafile 4 offline’ e. startup f. shutdown
A
a， c， b， d
B
d， b， c， a
C
f， d， b， c， a， e
D
c， a， b， d， f
E
a， b， d， e
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closeB
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单选题What is the correct order of the following commands if you wanted to restore datafile 4， which was accidentally removed from the file system？（） a. sql ’alter database datafile 4 online’ b. restore datafile 4 c. recover datafile 4 d. sql ’alter database datafile 4 offline’ e. startup f. shutdownA
a， c， b， dB
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c， a， b， d， fE
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单选题Which of the following is the correct sequence of order states during normal order processing？（）A
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考题
多选题You execute the following Recovery Manager （RMAN） commands in he following order： BACKUP VALIDATE DATABAE RECOVER CORRUPTION LIST； Which two tasks are performed by these commands？（）ARepair the corrupted blocks. If any. In the backup createdBPopulate VSCOPV_CORRUPTION with names of files that have corrupted blocksCBack up the database after checking whether array of the files have corrupted blocksDDiscover any corrupt blocks that are viewable with the VSDATABASE_BI-OCK_CORBUPTION viewERepair all corrupted blocks that have been logged in the VSDATABASE_BLOCK_ CORRUPTION
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Re-deploy the .msi fileB
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Re-deploy using the .zap file
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单选题You execute the following RMAN commands in the order shown below： BACKUP VALIDATE DATABASE; BLOCKRECOVER CORRUPTION LIST; What will these commands do？（）A
create a backup of the database and recover all corrupted blocks found in the backupB
run a backup validation and list all the logically corrupt blocks as well as physically corrupt blocks in the databaseC
run a backup validation to populate V$COPY_CORRUPTION view， and then list any corrupt blocks recorded in the viewD
run a backup validation to populate V$DATABASE_BLOCK_CORRUPTION view， and then repair any corrupt blocks recorded in the viewE
run a backup validation， repair any corrupt blocks found during the validation process， and then update V$DATABASE_BLOCK_CORRUPTION view to indicate which corrupt blocks have been repaired
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单选题You have table 'apps','userdata' on server that uses MyISAM storage engine. You want to transfer this data to server but use InnoDB engine instead. You execute the following commands: ServerB commands: Shell＞ mysqldump –u root –h server –no-data apps userdata | mysql –u root –p apps Shell＞ mysql –u root –p –h server –e 'ALTER TABLE 'apps','userdata' ENGINE=InnoDB;' Shell＞ mysqldump –u root –p –h server –no-create-info –order-by-primary apps userdata | mysql –u root –p apps What effect does the – order-by-primary argument have on the mysqldump command?（）A
It exports tables with the most indexes first to assist with import speedsB
It ensures that unique indexes have no conflicts when the data is dumpedC
It orders by primary key to assist in speeding up importing to InnoDB tablesD
It must be specified so index data is dumped correctly when –on-create-info is used
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单选题You run the following commands： RMAN list expired backup； RMAN delete expired backup； What will happen to the backup set pieces associated with the backups that appear in the list expired backup command？（）A
They will be renamed.B
Nothing will happen to them. The backup set pieces do not exist.C
They will be deleted immediately since they are not in the flash recovery area.D
You will need to manually remove the physical files listed in the output of the commands.E
They will become hidden files and removed 10 days later.
考题
单选题You want to migrate your database to ASM， so you have done a clean shutdown， made a closed backup of the entire You wa database， noted the location of your control files and online redo log files， and changed your spfile to use OMF. The last step is to run an RMAN script to do the conversion. Using the following steps，what is the correct order in which the following RMAN commands should be executed？（） 1. STARTUP NOMOUNT 2. ALTER DATABASE OPEN RESETLOGS 3. SQL "ALTER DATABASE RENAME ，，logfile1 path TO ，，+dgrp4 ，，" # plus all other logfiles 4. SWITCH DATABASE TO COPY 5. BACKUP AS COPY DATABASE FORMAT ，，+dgrp4 6. ALTER DATABASE MOUNT 7. RESTORE CONTROLFILE FROM ，，controlfile_locationA
2， 5， 3， 1， 7， 6， 4B
1， 7， 6， 5， 4， 3， 2C
5， 1， 2， 7， 4， 6， 3D
7， 3， 1， 5， 6， 2， 4
考题
单选题The following commands are available in the Linux binary distributions of Mysql: Mysqld Mysqld_safe Mysql.server What is the correct description of each of these commands?（）A
AB
BC
CD
D
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