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单选题
You have the following requirements in relation to the detection of block corruption for your database instance: 1. Check for logical self-consistency of data blocks when modified in memory. 2. Checksums are calculated before and after the block change. 3. Checks are performed for the lost writes to the physical standby database. Which method would help you perform the above checks automatically? （）
A
Set the DB_SECUREFILE parameter to PERMITTED
B
Set the DB_ULTRA_SAFE parameter to DATA_ONLY
C
Set the DB_LOCK_CHECKSUM parameter to TYPICAL
D
Set the DB_LOST_WRITE_PROTECT parameter to TYPICAL
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更多 “单选题You have the following requirements in relation to the detection of block corruption for your database instance: 1. Check for logical self-consistency of data blocks when modified in memory. 2. Checksums are calculated before and after the block change. 3. Checks are performed for the lost writes to the physical standby database. Which method would help you perform the above checks automatically? （）A Set the DB_SECUREFILE parameter to PERMITTEDB Set the DB_ULTRA_SAFE parameter to DATA_ONLYC Set the DB_LOCK_CHECKSUM parameter to TYPICALD Set the DB_LOST_WRITE_PROTECT parameter to TYPICAL” 相关考题
考题
You have not configured Oracle Managed Files (OMF) in your database. You do not want to scan the entire datafile every time an incremental backup is performed. You decide to enable the block change tracking feature. Which statement should you use to enable the block change tracking feature?（）A. ALTER DATABASE ENABLE BLOCK CHANGE TRACKING;B. ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING USING FILE path;C. ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE path;D. ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING;
考题
You have the following requirements in relation to the detection of block corruption for your database instance:1. Check for logical self-consistency of data blocks when modified in memory.2. Checksums are calculated before and after the block change.3. Checks are performed for the lost writes to the physical standby database.Which method would help you perform the above checks automatically? （）A. Set the DB_SECUREFILE parameter to PERMITTEDB. Set the DB_ULTRA_SAFE parameter to DATA_ONLYC. Set the DB_LOCK_CHECKSUM parameter to TYPICALD. Set the DB_LOST_WRITE_PROTECT parameter to TYPICAL
考题
The datafiles of your database are ASM files. You are performing a check for datafile block corruption by using the DBVERIFY utility. What is a prerequisite for checking block corruption on an ASM datafile by using the DBVERIFY utility？（） A、 The block change tracking feature must be enabled.B、 OMF must be configured on your database.C、 The database must be in ARCHIVELOG mode.D、 A USERID must be supplied.
考题
While working on the database， you receive the following error： 01578： ORACLE data block corrupted （file# 6， block # 54） ORA-01110 ： data file 6： ’u01/oracle/oradata/data1.dbf’ You decide to recover the corrupted data block by using the Block Media Recovery feature. Which option is NOT a disadvantage of using block media recovery？（）A、 Block Media Recovery must be used with RMAN.B、 You must perform complete recovery of individual blocks.C、 You must have a full RMAN backup， not an incremental backup.D、 You must use the DBVERIFY utility before using the Block Media Recovery feature.
考题
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？（） A、 Repair the corrupted blocks. If any. In the backup createdB、 Populate VSCOPV_CORRUPTION with names of files that have corrupted blocksC、 Back up the database after checking whether array of the files have corrupted blocksD、 Discover any corrupt blocks that are viewable with the VSDATABASE_BI-OCK_CORBUPTION viewE、 Repair all corrupted blocks that have been logged in the VSDATABASE_BLOCK_ CORRUPTION
考题
You have not configured Oracle Managed Files （OMF） in your database. You do not want to scan the entire datafile every time an incremental backup is performed. You decide to enable the block change tracking feature. Which statement will you use to enable the block change tracking feature？（）A、 ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING；B、 ALTER DATABASE ENABLE BLOCK CHANGE TRACKING；C、 ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING USING FILE ；D、 ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE ；
考题
he data blocks in your form module are based on object tables. How would you create a master-detail relationship between two of these blocks?（）A、Use the Data Block Wizard and base the relation on a REF pointer. B、In the Object Navigator, select the Relation node under the master block and click the Create icon. Build the relation manually and coordinate the blocks using triggers.C、Use the Data Block Wizard, and base the relation on the primary key-foreign key relationship in the database. D、This task is not possible because master-detail relations can be implemented only for blocks based on relational tables.
考题
Which of the following are correct about block media recovery？（）A、 Physical and logical block corruption is recorded automatically in V$DATABASE_BLOCK_ CORRUPTIONB、 Logical corruptions are repairable by BMRC、 Physical corruptions are repairable by BMRD、 RMAN can use any backup for a BMR restoreE、 ARCHIVELOG mode is not required if you have both a full and incremental backup for restore
考题
Examine the following command used to perform incremental level 0 backup： RMAN BACKUP INCREMENTAL LEVEL 0 DATABASE； To enable the block change tracking， after the incremental level 0 backup you issued the following command： SQL ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE ’/mydir/ rman_change_track.f’；To perform incremental level 1 cumulative backup， you issued the following command： RMAN BACKUP INCREMENTAL LEVEL 1 CUMULATIVE DATABASE； Which two statements are true in the above situation？（）A、 The block change tracking data will be used only from the next incremental 0 backup.B、 The incremental backup will use change tracking data for accomplishing the backup.C、 The incremental backup will not use change tracking data for accomplishing the backup.D、 The block track file will scan all the blocks and create bitmap for all the blocks backed up in the level 0 backup.
考题
You execute the following RMAN commands in the order shown below： BACKUP VALIDATE DATABASE; BLOCKRECOVER CORRUPTION LIST; What will these commands do？（）A、create a backup of the database and recover all corrupted blocks found in the backupB、run a backup validation and list all the logically corrupt blocks as well as physically corrupt blocks in the databaseC、run a backup validation to populate V$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
考题
The DB_BLOCK_CHECKING initialization parameter is set to TRUE. What would be the result of this setting on the data blocks being written to the datafiles， every time the DBWn writes？（）A、The Oracle database will check all data blocks by going through the data on each block， making sure the data is self-consistent.B、DBWn and the direct loader will calculate a checksum and store it in the cache header of every data block when writing it to disk.C、The Oracle database will check data blocks belonging to the SYSTEM tablespace only， by going through the data on each block， making sure the data is self-consistent.D、The Oracle database will check data blocks belonging to the SYSAUX tablespace only， by going through the data on each block， making sure the data is self-consistent.E、The Oracle database will check data blocks in the SYSTEM and SYSAUX tablespaces only， by going through the data on each block， making sure the data is self-consistent
考题
You enable block change tracking. You issue the following command: BACKUP INCREMENTAL LEVEL 0 DATABASE; The next day, you issue the following command: BACKUP INCREMENTAL LEVEL 1 CUMULATIVE DATABASE; Which statement about the use of the change tracking file is true?（）A、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.
考题
You are maintaining the PROD database of TeleSoft Corporation. You have initialized the following DB_BLOCK_CHECKING parameter in the init.ora file： DB_BLOCK_CHECKING = TRUE； What will be the result of setting this parameter？（）A、 Only data blocks of the SYSTEM tablespace will be checked.B、 Only data blocks of the SYSAUX tablespace will be checked.C、 A checksum will occur only on the checkpoint.D、 A checksum will occur every time a block is modified.
考题
You have the following requirements in relation to the detection of block corruption for your database instance： Check for logical self-consistency of data blocks when modified in memory. Checksums are calculated before and after the block change. Checks are performed for the lost writes to the physical standby database. Which method would help you perform the above checks automatically？（）A、 Set the DB_SECUREFILE parameter to PERMITTEDB、 Set the DB_ULTRA_SAFE parameter to DATA_ONLYC、 Set the DB_LOCK_CHECKSUM parameter to TYPICALD、 Set the DB_LOST_WRITE_PROTECT parameter to TYPICAL
考题
单选题You want to implement a master-detail relation between data blocks based on object tables. How would you do this? （）A
Create the relation manually and coordinate the blocks using triggers. B
Base the relation on a REF pointer using the Data Block Wizard. C
Base the relation on a foreign key using the Data Block Wizard. D
This task is not possible because master-detail relations can be implemented only for blocks based on relation tables.
考题
单选题You are maintaining the PROD database of TeleSoft Corporation. You have initialized the following DB_BLOCK_CHECKING parameter in the init.ora file： DB_BLOCK_CHECKING = TRUE； What will be the result of setting this parameter？（）A
Only data blocks of the SYSTEM tablespace will be checked.B
Only data blocks of the SYSAUX tablespace will be checked.C
A checksum will occur only on the checkpoint.D
A checksum will occur every time a block is modified.
考题
单选题You have not configured Oracle Managed Files (OMF) in your database. You do not want to scan the entire datafile every time an incremental backup is performed. You decide to enable the block change tracking feature. Which statement should you use to enable the block change tracking feature?（）A
ALTER DATABASE ENABLE BLOCK CHANGE TRACKING;B
ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING USING FILE path;C
ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE path;D
ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING;
考题
单选题You execute the following RMAN command 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 backup.B
Run a backup validation and list all the logically corrupt blocks as well as physically corrupt blocks in the database.C
Run a backup validation to populate V$COPY_CORRUPTION view， and then list any corrupt blocks recorded in the view.D
Run a backup validation to populate V$DATABASE_BLOCK_CORRUPTION view， and then repair any corrupt blocks recorded in the view.E
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.
考题
单选题You have not configured Oracle Managed Files (OMF) in your database. You do not want to scan the entire datafile every time an incremental backup is performed. You decide to enable the block change tracking feature.Which statement should you use to enable the block change tracking feature?（）A
ALTER DATABASE ENABLE BLOCK CHANGE TRACKINGB
ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING USING FILE C
ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE D
ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING
考题
单选题While working on the database， you receive the following error： 01578： ORACLE data block corrupted （file# 6， block # 54） ORA-01110 ： data file 6： ’u01/oracle/oradata/data1.dbf’ You decide to recover the corrupted data block by using the Block Media Recovery feature. Which option is NOT a disadvantage of using block media recovery？（）A
Block Media Recovery must be used with RMAN.B
You must perform complete recovery of individual blocks.C
You must have a full RMAN backup， not an incremental backup.D
You must use the DBVERIFY utility before using the Block Media Recovery feature.
考题
单选题You have the following requirements in relation to the detection of block corruption for your database instance： Check for logical self-consistency of data blocks when modified in memory. Checksums are calculated before and after the block change. Checks are performed for the lost writes to the physical standby database. Which method would help you perform the above checks automatically？（）A
Set the DB_SECUREFILE parameter to PERMITTEDB
Set the DB_ULTRA_SAFE parameter to DATA_ONLYC
Set the DB_LOCK_CHECKSUM parameter to TYPICALD
Set the DB_LOST_WRITE_PROTECT parameter to TYPICAL
考题
单选题he data blocks in your form module are based on object tables. How would you create a master-detail relationship between two of these blocks?（）A
Use the Data Block Wizard and base the relation on a REF pointer. B
In the Object Navigator, select the Relation node under the master block and click the Create icon. Build the relation manually and coordinate the blocks using triggers.C
Use the Data Block Wizard, and base the relation on the primary key-foreign key relationship in the database. D
This task is not possible because master-detail relations can be implemented only for blocks based on relational tables.
考题
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
考题
多选题Which of the following are correct about block media recovery？（）APhysical and logical block corruption is recorded automatically in V$DATABASE_BLOCK_ CORRUPTIONBLogical corruptions are repairable by BMRCPhysical corruptions are repairable by BMRDRMAN can use any backup for a BMR restoreEARCHIVELOG mode is not required if you have both a full and incremental backup for restore
考题
单选题The datafiles of your database are ASM files. You are performing a check for datafile block corruption by using the DBVERIFY utility. What is a prerequisite for checking block corruption on an ASM datafile by using the DBVERIFY utility？（）A
The block change tracking feature must be enabled.B
OMF must be configured on your database.C
The database must be in ARCHIVELOG mode.D
A USERID must be supplied.
考题
单选题You enable block change tracking. You issue the following command： BACKUP INCREMENTAL LEVEL 0 DATABASE； The next day，you issue the following command： BACKUP INCREMENTAL LEVEL 1 CUMULATIVE DATABASE； Which statement about the use of the change tracking file is true？（）A
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.
考题
单选题The DB_BLOCK_CHECKING initialization parameter is set to TRUE. What would be the result of this setting on the data blocks being written to the datafiles， every time the DBWn writes？（）A
The Oracle database will check all data blocks by going through the data on each block， making sure the data is self-consistent.B
DBWn and the direct loader will calculate a checksum and store it in the cache header of every data block when writing it to disk.C
The Oracle database will check data blocks belonging to the SYSTEM tablespace only， by going through the data on each block， making sure the data is self-consistent.D
The Oracle database will check data blocks belonging to the SYSAUX tablespace only， by going through the data on each block， making sure the data is self-consistent.E
The Oracle database will check data blocks in the SYSTEM and SYSAUX tablespaces only， by going through the data on each block， making sure the data is self-consistent
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