What are the consequences of executing the SHUTDOWN ABORT command？ （）A、The database files are synchronized.B、Uncommitted changes are not rolled back.C、The database is closed， but the instance is still started.D、Database buffers and redo buffers are not written to the disk.E、The database undergoes automatic media recovery during the next startup.
What are the consequences of executing the SHUTDOWN ABORT command？ （）
- A、The database files are synchronized.
- B、Uncommitted changes are not rolled back.
- C、The database is closed， but the instance is still started.
- D、Database buffers and redo buffers are not written to the disk.
- E、The database undergoes automatic media recovery during the next startup.
相关考题：
You are in the middle of a transaction and very crucial data has been modified. Because of a hardware failure， the instance has shut down before synchronizing all the database files. Which two statements are true？（）A、On startup， SMON coordinates instance recovery.B、On startup， CKPT coordinates instance recovery.C、On startup， use RMAN to perform instance recovery.D、Uncommitted changes will be rolled back after the database is opened.E、On startup， perform media recovery and then instance recovery.F、On startup， all the files will be synchronized and you get both committed and uncommitted data.
Upon starting your database， you receive the following error： SQL startup ORACLE instance started. Total System Global Area 171581440 bytes Fixed Size 1298640 bytes Variable Size 146804528 bytes Database Buffers 20971520 bytes Redo Buffers 2506752 bytes Database mounted. ORA-00313： open failed for members of log group 1 of thread 1 ORA-00312： online log 1 thread 1： ’/oracle01/oradata/orcl/redo01.log’ ORA-00312： online log 1 thread 1： ’/oracle01/oradata/orcl/redo01a.log’ You can choose from the following steps： a. Restore the database datafiles. b. Issue the alter database clear unarchived logfile group 1 command. c. Issue the alter database open command. d. Issue the alter database open resetlogs command. e. Recover the database using point-in-time recovery. f. Issue the Startup Mount command to mount the database. g. Back up the database. Which is the correct order of these steps in this case？（）A、a， f， e， d， gB、f， e， dC、f， b， c， gD、a， f， cE、The database cannot be recovered.
You are in the middle of a transaction updating a very important table. The machine on which a database wasrunning reboots because of power outage. This caused a database instance failure. Which statement is true inthis situation（）A、The online redo log files and archived redo log files are required to accomplish the recovery.B、The uncommitted transaction will be committed at the next startup of the database instance.C、The uncommitted transaction is rolled back automatically at the next opening of the database.D、The DBA has to perform the recovery on the database to recover the uncommitted transaction
Your database is configured in NOARCHIVELOG mode. All the control files have been lost due to a hard disk failure but the data files are not lost. You have the closed whole database backup available to you. Which two statements are true in this scenario？（）A、The instance aborts.B、The database cannot be recovered.C、The database can be recovered by restoring the control files from the backup.D、The database remains opened and you have to shut it down with the ABORT option.E、The database can be restored till the point of the last closed whole database backup.
Which of the following options is true about shutting down an Automatic Storage Management （ASM） instance？（） A、 If the SHUTDOWN IMMEDIATE command is issued to the ASM instance， the ASM instance immediately shuts down.B、 If the SHUTDOWN ABORT command is issued to the ASM instance， the ASM instance will shut down all the database instances and then shut down immediately.C、 If the SHUTDOWN NORMAL command is issued to the ASM instance， before shutting down， the ASM instance waits for the dependent database instances to shut down.D、 If the SHUTDOWN TRANSACTIONAL command is issued to the ASM instance， the ASM instance passes the same SHUTDOWN command to the dependent database instances， but does not wait for any active transactions to complete before it shuts down.
You executed the following command to start the database： SQL STARTUP ORACLE instance started. Total System Global Area 281018368 bytes Fixed Size 789000 bytes Variable Size 229635576 bytes Database Buffers 50331648 bytes Redo Buffers 262144 bytes ORA-00205： error in identifying controlfile， check alert log for more info Which view would you query at this stage to investigate this missing control file？（）A、V$INSTANCEB、V$CONTROLFILEC、DBA_CONTROL_FILESD、V$DATABASE_PROPERTIESE、V$CONTROLFILE_RECORD_SECTION
You have three production databases, HRDB, FINDB, and ORGDB, that use the same ASM instance. At the end of the day, while all three production database instances are running, you execute the following command on the ASM instance : SQL shutdown immediate; What is the result of executing this command?（）A、The ASM instance is shut down, but the other instances are still running.B、It results in an error because other database instances are connected to it.C、All the instances, including the ASM instance, are shut down in the IMMEDIATE mode.D、HRDB, FINDB, and ORGDB instances are shut down in the ABORT mode and the ASM instance is shut down in the IMMEDIATE mode.
After performing a clean shut down of the database instance for maintenance， you mount the database andthen execute a command to open the database：SQL ALTER DATABASE OPEN； Which two statements are true（）A、The online redo log files and online data files are opened.B、All the online data file headers are checked for consistency.C、Instance recovery is performed before opening the database.D、The path and existence of all the log file members are checked
You work as a database administrator for Certkiller .com. Your database is in the MOUNT state and you execute the following command to open it ALTER DATABASE OPEN； What two actions are performed as a result of this command？（）A、All control files are openedB、All redo files are openedC、The password file is openedD、The parameter file is openedE、All online data files are opened
After performing a clean shut down of the database instance for maintenance， you mount thedatabase and then execute a command to open the database： SQL ALTER DATABASE OPEN； Which two statements are true（）A、The online redo log files and online data files are opened.B、All the online data file headers are checked for consistency.C、Instance recovery is performed before opening the database.D、The path and existence of all the log file members are checked
What is the proper command to shut down the database in a consistent manner?（）A、shutdown abort B、shutdown kill C、Shutdown nowait D、shutdown immediateE、shutdown halt
Which two statements about the background process of the database writer are true（）A、It is possible to have multiple database writers in an Oracle instance.B、It writes dirty buffers， if any， to data files whenever a checkpoint occurs.C、It writes dirty buffers， if any， to data files whenever a transaction commits.D、It writes dirty buffers， if any， to data files before the log writer （LGWR） writes
When issuing the duplicate database command， you use the parameter DB_FILE_NAME_CONVERT. For what purpose do you use this parameter？（） A、 To indicate the location of the auxiliary-instance online redo logs.B、 To indicate the location of the target database datafiles.C、 To indicate the location of the auxiliary-instance control file and online redo logs.D、 To indicate the location of the auxiliary-instance database datafiles.E、 This is not a valid parameter when duplicating a database.
Which two statements about the background process of thedatabase writerare true（） A、It is possible to have multiple database writers in an Oracle instance.B、It writes dirty buffers， if any， to data files whenever a checkpoint occurs.C、It writes dirty buffers， if any， to data files whenever a transaction commits.D、It writes dirty buffers， if any， to data files before the log writer （LGWR） writes.
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？（）A、Start the instance and open the database, instance recovery automatically recovers control files B、Create a file based on the contents of the trace file and save it to the control file locations and start the database C、Re-create the database (The recovery of the control file is not possible because you have lost all the control files.) D、Start the instance, in the NOMOUNTstate,re-create the control file using the CREATE CONTROLFILE command stored in the trace file. E、Start the instance and MOUNT the database, then re-create the control file using the CREATE CONTROLFILE command stored in the trace file.
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.
You have lost all your online redo logs. As a result， your database has crashed. You have tried to restart the database and clear the online redo log files， but when you try to open the database you get the following error. SQL startup ORACLE instance started. Total System Global Area 167395328 bytes Fixed Size 1298612 bytes Variable Size 142610252 bytes Database Buffers 20971520 bytes Redo Buffers 2514944 bytes Database mounted. ORA-00313： open failed for members of log group 2 of thread 1 ORA-00312： online log 2 thread 1： ，，/oracle01/oradata/orcl/redo02a.log ORA-27037： unable to obtain file status Linux Error： 2： No such file or directory Additional information： 3 ORA-00312： online log 2 thread 1： ，，/oracle01/oradata/orcl/redo02.log ORA-27037： unable to obtain file status Linux Error： 2： No such file or directory Additional information： 3 SQL alter database clear logfile group 2； alter database clear logfile group 2 * ERROR at line 1： ORA-01624： log 2 needed for crash recovery of instance orcl （thread 1） ORA-00312： online log 2 thread 1： ，，/oracle01/oradata/orcl/redo02.log ORA-00312： online log 2 thread 1： ，，/oracle01/oradata/orcl/redo02a.log What steps must you take to resolve the error？（） a. Issue the recover database redo logs command. b. Issue the Startup Mount command to mount the database. c. Restore the last full database backup. d. Perform a point-in-time recovery， applying all archived redo logs that are available. e. Restore all archived redo logs generated during and after the last full database backup. f. Open the database using the alter database open resetlogs command. g. Issue the alter database open command.A、b， a， fB、e， b， a， fC、e， b， a， gD、b， a， gE、c， e， b， d， f
单选题Which of the following options is true about shutting down an Automatic Storage Management （ASM） instance？（）A If the SHUTDOWN IMMEDIATE command is issued to the ASM instance， the ASM instance immediately shuts down.B If the SHUTDOWN ABORT command is issued to the ASM instance， the ASM instance will shut down all the database instances and then shut down immediately.C If the SHUTDOWN NORMAL command is issued to the ASM instance， before shutting down， the ASM instance waits for the dependent database instances to shut down.D If the SHUTDOWN TRANSACTIONAL command is issued to the ASM instance， the ASM instance passes the same SHUTDOWN command to the dependent database instances， but does not wait for any active transactions to complete before it shuts down.
单选题ou are in the middle of a transaction updating a very important table. The machine on which adatabase was running reboots because of power outage. This caused a database instance failure. Which statement is true in this situation（）AThe online redo log files and archived redo log files are required to accomplish the recovery.BThe uncommitted transaction will be committed at the next startup of the database instance.CThe uncommitted transaction is rolled back automatically at the next opening of the database.DThe DBA has to perform the recovery on the database to recover the uncommitted transaction.
多选题Which two statements about the background process of the database writer are true（）AIt is possible to have multiple database writers in an Oracle instance.BIt writes dirty buffers， if any， to data files whenever a checkpoint occurs.CIt writes dirty buffers， if any， to data files whenever a transaction commits.DIt writes dirty buffers， if any， to data files before the log writer （LGWR） writes
多选题You are in the middle of a transaction and very crucial data has been modified. Because of a hardware failure， the instance has shut down before synchronizing all the database files. Which two statements are true？（）AOn startup， SMON coordinates instance recovery.BOn startup， CKPT coordinates instance recovery.COn startup， use RMAN to perform instance recovery.DUncommitted changes will be rolled back after the database is opened.EOn startup， perform media recovery and then instance recovery.FOn startup， all the files will be synchronized and you get both committed and uncommitted data.
多选题What are the consequences of executing the SHUTDOWN ABORT command？ （）AThe database files are synchronized.BUncommitted changes are not rolled back.CThe database is closed， but the instance is still started.DDatabase buffers and redo buffers are not written to the disk.EThe database undergoes automatic media recovery during the next startup.
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.
多选题Your database is configured in NOARCHIVELOG mode. All the control files have been lost due to a hard disk failure but the data files are not lost. You have the closed whole database backup available to you. Which two statements are true in this scenario？（）AThe instance aborts.BThe database cannot be recovered.CThe database can be recovered by restoring the control files from the backup.DThe database remains opened and you have to shut it down with the ABORT option.EThe database can be restored till the point of the last closed whole database backup.
多选题Which two statements about the background process of thedatabase writerare true（）AIt is possible to have multiple database writers in an Oracle instance.BIt writes dirty buffers， if any， to data files whenever a checkpoint occurs.CIt writes dirty buffers， if any， to data files whenever a transaction commits.DIt writes dirty buffers， if any， to data files before the log writer （LGWR） writes.
单选题You are in the middle of a transaction updating a very important table. The machine on which a database wasrunning reboots because of power outage. This caused a database instance failure. Which statement is true inthis situation（）AThe online redo log files and archived redo log files are required to accomplish the recovery.BThe uncommitted transaction will be committed at the next startup of the database instance.CThe uncommitted transaction is rolled back automatically at the next opening of the database.DThe DBA has to perform the recovery on the database to recover the uncommitted transaction
单选题If you issue the command shutdown abort prior to trying to put the database in ARCHIVELOG mode， what will be the result when you issue the command alter database archivelog？（）A The alter database archivelog command will failB The alter database archivelog inconsistent command must be used to put the database in ARCHIVELOG modeC The alter database archivelog command will succeedD The alter database archivelog command will ask if you want to make the database consistent firstE There is no alter database archivelog command. The correct command is alter database alterlogging