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In which scenario is a Database Administrator NOT required to perform an incomplete recovery？（）
- A、 when all the online redo log groups are multiplexed and one of the members of a group is missing
- B、 when all the online redo log groups are not multiplexed and one log group is missing
- C、 when all the control files are missing
- D、 when some important tables are deleted from the database and purged from the Recycle Bin
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更多 “In which scenario is a Database Administrator NOT required to perform an incomplete recovery？（）A、 when all the online redo log groups are multiplexed and one of the members of a group is missingB、 when all the online redo log groups are not multiplexed and one log group is missingC、 when all the control files are missingD、 when some important tables are deleted from the database and purged from the Recycle Bin” 相关考题
考题
The database is running in the ARCHIVELOG mode. It has three redo log groups with one member each.One of the redo log groups has become corrupted. You have issued the following command during the recovery of a damaged redo log file:ALTER DATABASE CLEAR UNARCHIVED LOGFILE GROUP 3;Which action should you perform immediately after using this command?（）A. You should perform a log switchB. You should make a backup of the databaseC. You should switch the database to the NONARCHIVELOG modeD. You should shut down the database instance and perform a complete database recovery
考题
Your database is in ARCHIVELOG mode. You have two online redo log groups, each of which contains oneredo member. When you attempt to start the database, you receive the following errors:ORA-00313: open failed for members of log group 1 of thread 1ORA-00312: online log 1 thread 1: ‘D:\REDO01.LOG‘You discover that the online redo log file of the current redo group is corrupted.Which statement should you use to resolve this issue?（）A. ALTER DATABASE DROP LOGFILE GROUP 1;B. ALTER DATABASE CLEAR LOGFILE GROUP 1;C. ALTER DATABASE CLEAR UNARCHIVED LOGFILE GROUP 1;D. ALTER DATABASE DROP LOGFILE MEMBER ‘D:\REDO01.LOG
考题
The instance abnormally terminates because of a power outage. Which statement is true about redo log filesduring instance recovery（）A、Inactive and current redo log files are required to accomplish recovery.B、Online and archived redo log files are required to accomplish instance recovery.C、All redo log entries after the last checkpoint are applied from redo log files to data files.D、All redo log entries recorded in the current redo log file until the checkpoint position are applied to data files
考题
Your database is in ARCHIVELOG mode. You have two online redo log groups, each of which contains one redo member. When you attempt to start the database, you receive the following errors: ORA-00313: open failed for members of log group 1 of thread 1 ORA-00312: online log 1 thread 1: 'D:/REDO01.LOG' You discover that the online redo log file of the current redo group is corrupted. Which statement should you use to resolve this issue?（）A、ALTER DATABASE DROP LOGFILE GROUP 1;B、ALTER DATABASE CLEAR LOGFILE GROUP 1;C、ALTER DATABASE CLEAR UNARCHIVED LOGFILE GROUP 1;D、ALTER DATABASE DROP LOGFILE MEMBER 'D:/REDO01.LOG
考题
The database is running in the ARCHIVELOG mode. It has three redo log groups with one member each. One of the redo log groups has become corrupted. You have issued the following command during the recovery of a damaged redo log file： ALTER DATABASE CLEAR UNARCHIVED LOGFILE GROUP 3； Which action should you perform immediately after using this command？（） A、 You should perform a log switchB、 You should make a backup of the databaseC、 You should switch the database to the NONARCHIVELOG modeD、 You should shut down the database instance and perform a complete database recovery
考题
In your database， online redo log files are multiplexed and one of the members in a group is lost due to media failure？ How would you recover the lost redo log member？（）A、 import the database from the last exportB、 restore all the members in the group from the last backupC、 drop the lost member from the database and then add a new member to the groupD、 restore all the database files from the backup and then perform a complete recoveryE、 restore all the database files from the backup and then perform an incomplete recovery
考题
Which two statements are true regarding the database in ARCHIVELOG mode？（）A、You have to shut down the database to perform the backups.B、Archiving information is written to the data files and redo log files.C、You can perform complete database backups without closing the database.D、Online redo log files have to be multiplexed before putting the database in ARCHIVELOG mode.E、All the previous database backups become invalid after you configure the database to ARCHIVELOG mode.
考题
Your database is in ARCHIVELOG mode. You have two online redo log groups，each of which contains one redo member. When you attempt to start the database， you receive the following errors：（）A、 ALTER DATABASE DROP LOGFILE GROUP 1B、 ALTER DATABASE CLEAR LOGFILE GROUP 1C、 ALTER DATABASE CLEAR UNARCHIVED LOGFILE GROUP 1D、 ALTER DATABASE DROP LOGFILE MEMBER ’D:///REDO01.LOG’
考题
You have configured the flash recovery area to store online redo log files， control files， archived redo logs and RMAN backups. Which of the following files can you successfully delete from the flash recovery area if you want to reclaim the space within it？（）A、 multiplexed control filesB、 RMAN obsolete backupsC、 multiplexed online redo log filesD、 archived redo logs that have not been copied to tape
考题
The database is running in the ARCHIVELOG mode. It has three redo log groups with one member each. Oneof the redo log groups has become corrupted. You have issued the following command during the recovery of a damaged redo log file:ALTER DATABASE CLEAR UNARCHIVED LOGFILE GROUP 3; Which action should you perform immediately after using this command?（）A、You should perform a log switchB、You should make a backup of the databaseC、You should switch the database to the NONARCHIVELOG modeD、You should shut down the database instance and perform a complete database recovery
考题
You have the following online redo log configuration： Group Member 1 ’/disk1/oradata/redo01a.log’ 2 ’/disk2/oradata/redo02a.log’ 3 ’/disk3/oradata/redo03a.log’ You decide to multiplex the online redo log groups for recovery of redo log files in case of any disaster. Which two statements will you NOT issue to multiplex the online redo log files？（）A、 ALTER DATABASE ADD LOGFILE MEMBER ’/disk1/oradata/redo01b.log’ TO GROUP 1；B、 ALTER DATABASE ADD LOGFILE MEMBER ’/disk2/oradata/redo01b.log’ TO GROUP 1；C、 ALTER DATABASE ADD LOGFILE MEMBER ’/disk1/oradata/redo02b.log’ TO GROUP 2；D、 ALTER DATABASE ADD LOGFILE MEMBER ’/disk2/oradata/redo02b.log’ TO GROUP 2；E、 ALTER DATABASE ADD LOGFILE MEMBER ’/disk1/oradata/redo3b.log’ TO GROUP 3；F、 ALTER DATABASE ADD LOGFILE MEMBER ’/disk2/oradata/redo3b.log’ TO GROUP3；
考题
In which scenario will you perform an incomplete recovery？（）A、 when a table is dropped and stored in the Recycle BinB、 when all the control files are deletedC、 when a member of a multiplexed redo log group is droppedD、 when you are required to recover a table to its previous state
考题
You are working on a database， where you have three redo log groups. When the database is down for a backup， an operating system （OS） user deletes all the redo log files in a group. What will happen when you open your database？（）A、 The instance starts， the database is mounted， but efforts to open the database fail， and an error about the missing redo log group is displayed.B、 Before the instance starts， you receive an error about the missing redo log files of a group.C、 The instance starts and the database opens with an error message written to the alert log file.D、 The instance starts and the database opens because two redo log groups still exist.E、 The instance starts and the database opens， but every attempt to write to redo log files fails with an error.
考题
As a result of a media failure， the current online redo log group is corrupted. The database crashes， as the current online group is inaccessible. Which type of incomplete recovery are you most likely to perform？ （）A、Cancel-basedB、Recovery using a backup control fileC、Time-basedD、Change-based
考题
Your database is in NOARCHIVELOG mode. The database has three online redo log groups， and each group contains three online redo log members. The online redo log members are stored across three hard disks， E， F， and G， respectively. Hard disk G crashed while the LGWR background process was writing redo information to the online redo log files. What effect will this crash have on the database？（）A、 The database will operate normally without generating any redo.B、 The database will hang， and you must shut down and restart the instance.C、 The database will crash， and you must recover the database from the point of failure.D、 The database will operate normally and will generate minimal redo for the tables created with the NOLOGGING clause.
考题
In your database， online redo log files are multiplexed and one of the members in a group is lost due to media failure. How would you recover the lost redo log member？（）A、import the database from the last exportB、restore all the members in the group from the last backupC、drop the lost member from the database， and then add a new member to the groupD、restore all the database files from the backup， and then perform a complete recovery E、restore all the database files from the backup， and then perform an incomplete recovery
考题
In which situation are you NOT required to perform an incomplete recovery？（）A、 when all the control files are lostB、 when all the members of a redo log group are lostC、 when a table is dropped and purged from the Recycle BinD、 when a temporary file of the default temporary tablespace is lost
考题
Your database is in ARCHIVELOG mode. You have two online redo log groups each of which contains one redo member. When you attempt to start the database， you receive the following errors： ORA-00313： open failed for members of log group 1 of thread 1 ORA-00312： online log 1 thread 1： ’D:///REDO01.LOG’ You discover that the online redo log file of the current redo group is corrupted. Which statement should you use to resolve this issue？（）A、 SQLALTER DATABASE DROP LOGFILE GROUP 1；B、 SQLALTER DATABASE CLEAR LOGFILE GROUP 1；C、 SQLALTER DATABASE CLEAR UNARCHIVED LOGFILE GROUP 1；D、 SQLALTER DATABASE DROP LOGFILE MEMBER ’D:///REDO01.LOG’；
考题
单选题You have configured the flash recovery area to store online redo log files， control files， archived redo logs and RMAN backups. Which of the following files can you successfully delete from the flash recovery area if you want to reclaim the space within it？（）A
multiplexed control filesB
RMAN obsolete backupsC
multiplexed online redo log filesD
archived redo logs that have not been copied to tape
考题
单选题The performance of your database is affected by the presence of two log members in each online redo log group and the placement of redo log members of a group on the same disk. You decide to place the redo log members of a group on separate disks. Which view will you query to find the name and location of all the online redo log members？（）A
V$LOGB
V$LOGFILEC
DBA_LOG_GROUPSD
V$LOG_HISTORY
考题
单选题In which situation are you NOT required to perform an incomplete recovery？（）A
when all the control files are lostB
when all the members of a redo log group are lostC
when a table is dropped and purged from the Recycle BinD
when a temporary file of the default temporary tablespace is lost
考题
单选题You are working on a database， where you have three redo log groups. When the database is down for a backup， an operating system （OS） user deletes all the redo log files in a group. What will happen when you open your database？（）A
The instance starts， the database is mounted， but efforts to open the database fail， and an error about the missing redo log group is displayed.B
Before the instance starts， you receive an error about the missing redo log files of a group.C
The instance starts and the database opens with an error message written to the alert log file.D
The instance starts and the database opens because two redo log groups still exist.E
The instance starts and the database opens， but every attempt to write to redo log files fails with an error.
考题
单选题Your database is in ARCHIVELOG mode. You have two online redo log groups，each of which contains one redo member. When you attempt to start the database， you receive the following errors：（）A
ALTER DATABASE DROP LOGFILE GROUP 1B
ALTER DATABASE CLEAR LOGFILE GROUP 1C
ALTER DATABASE CLEAR UNARCHIVED LOGFILE GROUP 1D
ALTER DATABASE DROP LOGFILE MEMBER ’D:///REDO01.LOG’
考题
单选题Your database is in ARCHIVELOG mode. You have two online redo log groups each of which contains one redo member. When you attempt to start the database， you receive the following errors： ORA-00313： open failed for members of log group 1 of thread 1 ORA-00312： online log 1 thread 1： ’D:///REDO01.LOG’ You discover that the online redo log file of the current redo group is corrupted. Which statement should you use to resolve this issue？（）A
SQLALTER DATABASE DROP LOGFILE GROUP 1；B
SQLALTER DATABASE CLEAR LOGFILE GROUP 1；C
SQLALTER DATABASE CLEAR UNARCHIVED LOGFILE GROUP 1；D
SQLALTER DATABASE DROP LOGFILE MEMBER ’D:///REDO01.LOG’；
考题
单选题In which scenario is a Database Administrator NOT required to perform an incomplete recovery？（）A
when all the online redo log groups are multiplexed and one of the members of a group is missingB
when all the online redo log groups are not multiplexed and one log group is missingC
when all the control files are missingD
when some important tables are deleted from the database and purged from the Recycle Bin
考题
单选题In which scenario will you perform an incomplete recovery？（）A
when a table is dropped and stored in the Recycle BinB
when all the control files are deletedC
when a member of a multiplexed redo log group is droppedD
when you are required to recover a table to its previous state
考题
单选题In your database， online redo log files are multiplexed and one of the members in a group is lost due to media failure？ How would you recover the lost redo log member？（）A
import the database from the last exportB
restore all the members in the group from the last backupC
drop the lost member from the database and then add a new member to the groupD
restore all the database files from the backup and then perform a complete recoveryE
restore all the database files from the backup and then perform an incomplete recovery
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