Oracle数据库启动时需要经历三个步骤和状态变换，以下顺序正确的是（）。A、mount→open→nomountB、mount→open→closeC、close→open→mountD、nomount→mount→open
Oracle数据库启动时需要经历三个步骤和状态变换，以下顺序正确的是（）。
- A、mount→open→nomount
- B、mount→open→close
- C、close→open→mount
- D、nomount→mount→open
相关考题：
You realize that the control file is damaged in your production database.After restoring the control file from autobackup, what is the next step that you must do to proceed with the database recovery?（）A. Mount the databaseB. Open the database in NORMAL modeC. Open the database in RESTRICTED modeD. Open the database with the RESETLOGS option
Your multitenant container database (CDB) contains three pluggable database (PDBs). You find that the control file is damaged. You plan to use RMAN to recover the control file. There are no startup triggers associated with the PDBs.Which three steps should you perform to recover the control file and make the database fully operational?（）A. Mount the container database (CDB) and restore the control file from the control file auto backup.B. Recover and open the CDB in NORMAL mode.C. Mount the CDB and then recover and open the database, with the RESETLOGS option.D. Open all the pluggable databases.E. Recover each pluggable database.F. Start the database instance in the nomount stage and restore the control file from control file auto backup.
At database startup， you discover that one of the disks containing an index tablespace has been lost due to a media failure. A backup of the lost index tablespace is not available. You have all the necessary scripts to recreate the indexes. You need to re-create the indexes in a new index tablespace. Which action must you perform before re-creating the indexes？（）A、 Start the database in OPEN mode， and create a new index tablespace.B、 Start the database in OPEN mode， and drop the lost index tablespace from the database.C、Start the database in MOUNT mode， create a new index tablespace， and drop the lost index tablespace from the database.D、 Start the database in MOUNT mode， drop the lost index tablespace from the database， open the database， and create a new index tablespace.
You are working on the PROD database， which is in NOARCHIVELOG mode. You lost the active online redo log group due to a media failure. How should you recover your database？（）A、 Restore the database from a whole consistent backup and start the database in MOUNT mode. Then， open the database with the RESETLOGS option after performing a cancel-based recovery.B、 Restore the database from a whole consistent backup and start the database in MOUNT mode. Then， drop the lost redo log group and open the database with the RESETLOGS option after performing a cancel-based recovery.C、 Restore the database from a whole consistent backup and start the database in MOUNT mode. Then， clear the lost redo log group and open the database with the RESETLOGS option after performing a cancel-based recovery.D、 Do nothing. You do not need to recover the database in this case； an instance recovery will be performed by the SMON process on startup.
Given the following output， recommend corrective action that should be undertaken to increase protection（） # Isvg -I rootvg rootvg： LV NAME TYPE LPs PPs PVs LV STATE MOUNT POINT hd5 boot 1 2 2 closed/syncd N/A hd6 paging 16 32 2 open/syncd N/A hd8 jfslog 1 2 2 open/syncd N/A hd4 jfs 2 4 2 open/syncd / hd2 jfs 53 106 2 open/syncd /usr hd9var jfs 16 32 2 open/syncd /var hd3 jfs 4 8 2 open/syncd /tmp hdl jfs 1 2 2 open/syncd /home hdlOopt jfs 2 4 2 open/syncd /opt loglvOO jfs2log 1 1 1 open/syncd N/A fslvOO jfs2 ’ 2 4 2 open/syncd /datafsA、add a copy of the log for/datafsB、open hd5C、mirrorvg rootvgD、split /usr as it is too big
oracle数据库在nomount模式时，以下（）命令将数据库启动到mount模式。A、startupB、startup mountC、alter database mountD、alter database open
You have to shut down the database instance with the ABORT option because of a hardware failure. Which statement is true about the subsequent opening of the database？（）A、The database would open normally.B、The database would not open， and it would stop at mount stage.C、The database would open after automatically performing instance recovery.D、The database would not open， and you have to perform database recovery to open it.
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
You realize that the control file is damaged in your production database.After restoring the control file from autobackup, what is the next step that you must do to proceed with the database recovery?（）A、Mount the databaseB、Open the database in NORMAL modeC、Open the database in RESTRICTED modeD、Open the database with the RESETLOGS option
You have lost all your SYSTEM tablespace datafiles （system_01.dbf and system_02.dbf） nd the database has crashed. What would be the appropriate order of operations to correct the situation？（） a. Mount the database with the startup mount command. b. Take the SYSTEM datafile offline with the alter database command. c. Restore the SYSTEM_01.dbf datafile from backup media with the required archived redo logs. d. Restore all SYSTEM tablespace-related datafiles from backup media. e. Issue the recover tablespace SYSTEM command. f. Issue the recover datafile SYSTEM_01.dbf command. g. Open the database with the alter database open command. h. Open the database with the alter database open resetlogs command.A、a， c， f， gB、b， d， e， hC、a， b， c， f， gD、d， a， e， gE、b， c， f， e， g
You are managing a single instance Oracle 10g database that utilizes the following parameters： Which of the following set of commands must you execute to enable Flashback Database？（）A、 STARTUP MOUNT EXCLUSIVE ALTER DATABASE FLASHBACK ON； ALTER DATABASE OPEN；B、 STARTUP MOUNT ALTER DATABASE FLASHBACK ON； ALTER DATABASE OPEN RESETLOGS；C、 STARTUP MOUNT EXCLUSIVE ATLER DATABASE ARCHIVELOG； ALTER DATABASE FLASHBACK ON； ALTER DATABASE OPEN RESETLOGS；D、 STARTUP MOUNT ALTER DATABASE ARCHIVELOG； ALTER DATABASE FLASHBACK ON； ALTER DATABASE OPEN；
Which three statements are true about the stages of database startup？（）A、Data files and redo log files can be renamed at the MOUNT stage.B、Control files are read at the OPEN stage for the location of data files.C、Control files are required to bring the database to the NOMOUNT stage.D、Data files and redo log files are made available to users at the OPEN stage.E、Data files and online redo log files are checked for consistency while opening the database
You are performing an incomplete recovery because certain important tables were deleted and purged from the Recycle Bin. In which mode will you perform the recovery？（）A、 MOUNT modeB、 RESTRICTED modeC、 OPEN modeD、 NOMOUNT mode
In your multitenant container database (CDB) with two pluggable database (PDBs). You want to create a new PDB by using SQL Developer. Which statement is true?（）A、The CDB must be open.B、The CDB must be in the mount stage.C、The CDB must be in the nomount stage.D、Alt existing PDBs must be closed.
多选题our 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？（）AAll control files are opened.BAll redo log files are openedCThe password file is opened.DThe parameter file is opened.EAll online data files are opened.
单选题Given the following output， recommend corrective action that should be undertaken to increase protection（） # Isvg -I rootvg rootvg： LV NAME TYPE LPs PPs PVs LV STATE MOUNT POINT hd5 boot 1 2 2 closed/syncd N/A hd6 paging 16 32 2 open/syncd N/A hd8 jfslog 1 2 2 open/syncd N/A hd4 jfs 2 4 2 open/syncd / hd2 jfs 53 106 2 open/syncd /usr hd9var jfs 16 32 2 open/syncd /var hd3 jfs 4 8 2 open/syncd /tmp hdl jfs 1 2 2 open/syncd /home hdlOopt jfs 2 4 2 open/syncd /opt loglvOO jfs2log 1 1 1 open/syncd N/A fslvOO jfs2 ’ 2 4 2 open/syncd /datafsAadd a copy of the log for/datafsBopen hd5Cmirrorvg rootvgDsplit /usr as it is too big
单选题You are performing an incomplete recovery because certain important tables were deleted and purged from the Recycle Bin. In which mode will you perform the recovery？（）A MOUNT modeB RESTRICTED modeC OPEN modeD NOMOUNT mode
单选题You have to shut down the database instance with the ABORT option because of a hardware failure. Which statement is true about the subsequent opening of the database？（）AThe database would open normally.BThe database would not open， and it would stop at mount stage.CThe database would open after automatically performing instance recovery.DThe database would not open， and you have to perform database recovery to open it.
单选题In your multitenant container database (CDB) with two pluggable database (PDBs). You want to create a new PDB by using SQL Developer. Which statement is true?（）AThe CDB must be open.BThe CDB must be in the mount stage.CThe CDB must be in the nomount stage.DAlt existing PDBs must be closed.
单选题You are managing a single instance Oracle 10g database that utilizes the following parameters： Which of the following set of commands must you execute to enable Flashback Database？（）A STARTUP MOUNT EXCLUSIVE ALTER DATABASE FLASHBACK ON； ALTER DATABASE OPEN；B STARTUP MOUNT ALTER DATABASE FLASHBACK ON； ALTER DATABASE OPEN RESETLOGS；C STARTUP MOUNT EXCLUSIVE ATLER DATABASE ARCHIVELOG； ALTER DATABASE FLASHBACK ON； ALTER DATABASE OPEN RESETLOGS；D STARTUP MOUNT ALTER DATABASE ARCHIVELOG； ALTER DATABASE FLASHBACK ON； ALTER DATABASE OPEN；