A text copy of the control file.
A binary copy of the control file.
A file containing a SQL statement which will re-create the database.
A file containing a SQL statement which will re-create the control file.
第1题:
You work as a database administrator for Supportcenter.cn. You added atablespaceto your database. Because of the changes to the physical structure of your database, you performed a backup of the control file to trace. After this, you lost only the control files and the instance aborted due to a hardware failure. How would you proceed to recover the database?()
第2题:
In which situation will you run the script containing the following statement?() CREATE CONTROLFILE REUSE DATABASE SALES NORESETLOGS ARCHIVELOG MAXLOGFILES 20 MAXLOGMEMBERS 3 MAXDATAFILES 30 MAXINSTANCES 10 MAXLOGHISTORY 1200 LOGFILE GROUP 1 ( ’/disk1/prod/orders/db/log1a.dbf’, ’/disk2/prod/orders/db/log1b.dbf’ )SIZE 100K GROUP 2 ( ’/disk1/prod/orders/db/log2a.dbf’, ’/disk2/prod/orders/db/log2b.dbf’ ) SIZE 100K, DATAFILE ’/disk1/prod/orders/db/database1.dbf’, ’/disk2/prod/orders/db/file1.dbf ’;
第3题:
You work as a database administrator for Certkiller .com. You added atablespaceto your database. Because of the changes to the physical structure of your database, you performed a backup of the control file to trace. After this, you lost only the control files and the instance aborted due to a hardware failure. How would you proceed to recover the database?()
第4题:
In which scenario will you issue the following command?() SQL> RECOVER DATABASE UNTIL TIME ’2005-10-04 : 12:09:08’ USING BACKUP CONTROLFILE;
第5题:
You are maintaining your database in Oracle10g. You want to store the information about the backup of the database in the control file. You issue the following statement: SQL>ALTER SYSTEM SET CONTROL_FILE_RECORD_KEEP_TIME=400; What is the outcome of this statement? ()
第6题:
The trace file is in binary format.
The trace file has a SQL script to re-create the control file.
The trace file is a backup set created during the backup of the control file.
The trace file contains the instructions to manually re-create the control file.
The trace file is an image copy of the control file created during the backup of the control file.
第7题:
It updates the control file with the new location of the data file.
It updates only the data dictionary with the new location of the data file.
It changes the location of the user_data01.dbf file in the operating system.
It changes the location of the user_data01.dbf file in the operating system and updates the control file with the new location of the data file.
第8题:
Image of the control file
Location of the control file
Contents of the control file in text format
SQL command to re-create the database
SQL command to re-create the control file
Contents of the control file in binary format
第9题:
The control file will be multiplexed.
The control file will be recreated.
The script containing the CREATE CONTROLFILE statement will be created.
The binary backup of the control file will be created.
第10题:
Start the instance and open the database, instance recovery automatically recoverscontrol files
Create a file based on the contents of the trace file and save it to the control file locations and start the database
Re-create the database (The recovery of the control file is not possible because you have lost all the control files.)
Start the instance, in the NOMOUNTstate,re-create the control file using the CREATE CONTROLFILE command stored in the trace file.
Start the instance and MOUNT the database, then re-create the control file using the CREATE CONTROLFILE command stored in the trace file.
第11题:
Backup control file.
Emergency control file.
The create controlfile command.
The restore controlfile SQL*Plus command.
No backup is required. The database will re-create the control file when it is discovered to be lost.
第12题:
a, b, f, g
c, f, g
a, d, f, g
a, f, g
a, e, g
第13题:
You issued the following statement: SQL> ALTER DATABASE BACKUP CONTROLFILE TO TRACE; What will be the result of issuing the statement?()
第14题:
You executed the following command to back up your control file: ALTER DATABASE BACKUP CONTROLFILE TO TRACE; Which initialization parameter is used to specify the location of the trace file?()
第15题:
In which of the following scenarios is a tablespace recovery required?()
第16题:
You have lost all your database control files. To recover them, you are going to use the results of the alter database backup controlfile to trace command. Your datafiles and your online redo logs are all intact. Which of the following is true regarding your recovery?()
第17题:
Issue ALTER DATABASE BACKUP CONTROLFILE TO filename
Make a copy of the control file with the database shut down
Issue ALTER DATABASE BACKUP CONTROLFILE TO trace
Make a copy of the control file with the database still running
第18题:
USER_DUMP_DEST
CORE_DUMP_DEST
TRACE_DUMP_DEST
BACKUP_DUMP_DEST
BACKGROUND_DUMP_DEST
第19题:
The statement will not execute successfully.
The statement will execute successfully, and the backups metadata will be maintained in the control file for 400 days
The statement will execute successfully, and the backups metadata will be maintained in the recovery catalog for 400 days.
Backups will be deleted from the media after 400 days.
第20题:
A text copy of the control file.
A binary copy of the control file.
A file containing a SQL statement which will re-create the database.
A file containing a SQL statement which will re-create the control file.
第21题:
when all the control files are missing and only a binary backup of the current control file exists
when a multiplexed copy of the current control file is missing
when all the control files are missing and only a script containing the CREATE CONTROLFILE statement exists
when the SPFILE is missing
第22题:
Start the instance and open the database, instance recovery automatically recovers control files
Create a file based on the contents of the trace file and save it to the control file locations and start the database
Re-create the database (The recovery of the control file is not possible because you have lost all the control files.)
Start the instance, in the NOMOUNTstate,re-create the control file using the CREATE CONTROLFILE command stored in the trace file.
Start the instance and MOUNT the database, then re-create the control file using the CREATE CONTROLFILE command stored in the trace file.
第23题:
when recovering a lost read-only tablespace from a read-only tablespace backup
when recovering a lost read-only tablespace from a read-write tablespace backup when the database is running in ARCHIVELOG mode
when recovering a lost read-only tablespace from a read-write tablespace backup when the database is running in NOARCHIVELOG mode and the changes in the online redo log files have been overwritten
when recovering a lost read-only tablespace from a read-only tablespace backup using the backup of the control file, the control file was created using the ALTER DATABASE BACKUP CONTROLFILE TO TRACE statement, and this statement was issued when the tablespace was read-only
第24题:
You will need to open the database with the resetlogs command.
All you need to do is execute the trace file from SQL*Plus and it will perform the recovery for you.
You will use the resetlogs version of the create controlfile command.
You will use the noresetlogs version of the create controlfile command.
You will use the trace file to create a backup control file, and then you will recover the database with the recover database using backup controlfile command