You are working on a test database where instance recovery t

第1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.

第2题：

You are working on the 24X7 database with high transaction volume， to ensure faster instance recovery on your database you set the FAST_START_MTTR_TARGET initialization parameter to a very low value. What effect it will have on the database？（）

• A、The database performance would be enhanced.
• B、The redo log files would be get filled more frequently.
• C、The overall database performance would be degraded.
• D、The mean time to recover （MTTR） would be increased.

第3题：

You work as a database administrator for Supportcenter.cn. You are working on Oracle Database 10g. To forward client connections to an instance， the listener must know information such as the name of the instance and where the instance’s ORACLE_HOME is located. How does the listener get this information？（）

• A、It gets it from the parameter file.
• B、The listener prompts for details on startup.
• C、The listener gathers information from the control file.
• D、The instance automatically registers with the default listener.
• E、The listener gets this information through thelistener.orafile.

第4题：

In the parameter file of your production database， the FAST_START_MTTR_TARGET parameter is set to 300 to optimize instance recovery. While observing the performance of the database during instance recovery， you find that the redo log files are not sized properly to support this activity. Which two sources could you use to determine the optimal size of the redo log files？（）

• A、the V$LOG view
• B、the V$DBFILE view
• C、the V$LOGFILE view
• D、the V$INSTANCE_RECOVERY view
• E、Oracle Enterprise Manager Database Control

第5题：

In which two cases would you perform only consistent backup？（）

• A、You are working on a database where downtime is not tolerated.
• B、You are working on a database where downtime can be tolerated.
• C、You are working on a database that operates in ARCHIVELOG mode.
• D、You are working on a database that operates in NOARCHIVELOG mode.
• E、You are working on a database where all the tablespaces are locally managed.
• F、You are working on a database where control files and redo log files are multiplexed.
• G、You are working on a database where control files and redo log files are not multiplexed.

第6题：

You can control instance recover performance by setting parameters to define targets for（）

• A、The size of the redo buffer in SGA. 
• B、The instance that will perform recovery in Real Application Cluster database. 
• C、The number of blocks to be read during instance recovery, or the time needed to complete instance recovery. 
• D、The number of passes through the redo logs made by the recovery process to identify blocks needing recovery.

第7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？（）

• 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.

第8题：

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.

第9题：

You are working on a test database where instance recovery takes a considerable amount of time.How can reduce the recovery time？（）

• A、By multiplexing the control files
• B、By multiplexing the redo log files
• C、By decreasing the size of redo log files
• D、By configuring mean time to recover （MTTR） to a lower value
• E、By setting the UNDO_RETENTION parameter to a higher value

第10题：

You work as a database administrator for Certkiller .com. On a Monday morning， you find the database instance aborted. After inspecting the alert log file， you execute the STARTUP command in SQL*Plus to bring the instance up. What statement is true？（）

• A、PMON coordinates media recovery.
• B、SMON coordinates instance recovery.
• C、PMON coordinates instance recovery.
• D、Undo Advisor would roll back all uncommitted transactions.
• E、SQL*PLUS reports an error with the message asking you to perform instance recovery.