单选题You used the IMMEDIATE option to shut down your database instance. Consider the steps that may occurwhen a database instance is started and database is opened： 1. SGA is allocated. 2. Control file is read. 3. Redo log files are opened.4. Instance recov

第1题：

If a log file becomes corrupted， it may cause the database to stall. How would you correct such a situation？（）  

• A、 Recover the online redo log from backup.
• B、 Delete and re-create the log file.
• C、 Use the alter database clear logfile command to clear the log file.
• D、 Shut down the database and restart it.
• E、 Shut down the database and then mount it. Clear the log file with the alter database clear logfile command and then restart the database with alter database open resetlogs.

第2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.

第3题：

第4题：

As soon as you discover that you have lost an online redo log， if the database is still functioning， what should be your first action？（）  

• A、 Shut down the database
• B、 Clear the online redo log
• C、 Back up the database
• D、 Checkpoint the database
• E、 Call Oracle support

第5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6题：

Company.com has employed you as their exchange administrator.The Company.com network contains an exchange server 2010 organization that hosts two exchange servers named -ex01 and -ex02.-ex01 and -ex02 is members of a database availability group.during the course of the day you decide to shut down -ex01.You then receive numerous complaints from users stating that they are unable to access their mailboxes.to ensure productivity you need to make sure that all examways users are able to connect to their mailboxes in the event of one mailbox server becoming inaccessible.What should you do？（）

• A、your best choice would be to have the hub transport server role removed from -ex01.
• B、your best option would be to have the mailbox database copies added to -ex01 and -ex02.
• C、Your best option would be to have the shadow redundancy settings configured.
• D、Your best option would be to have Client Access server array created.

第7题：

You have joined a new organization as a Database Administrator. The Security Administrator in your organization has kept human errors， such as erroneously dropping users， tables， and important data， to a minimum by carefully granting only the necessary privileges to each user. As a result of several ongoing transactions within your database， you discover that the flashback logs are rapidly increasing in the flash recovery area. To avoid out-of-space errors， you decide to delete the flashback logs from the flash recovery area. How can you delete the flashback logs from the database if your database is up and running？（）

• A、 Shut down the database using the SHUTDOWN command. Mount the database using the STARTUP MOUNT EXCLUSIVE command and disable Flashback Database using the ALTER DATABASE FLASHBACK OFF statement.
• B、 Change the parameter setting in the SPFILE for the DB_RECOVERY_FILE_DEST parameter using the ALTER SYSTEM SET DB_RECOVERY_FILE_DEST=’’ SCOPE=BOTH statement while the database is up and running.
• C、 Shut down the database using the SHUTDOWN command. Mount the database using the STARTUP MOUNT EXCLUSIVE command. Change the parameter setting in the SPFILE for the DB_RECOVERY_FILE_DEST parameter using the ALTER SYSTEM SET DB_RECOVERY_FILE_DEST=’’ SCOPE=BOTH statement. Disable Flashback Database using the ALTER DATABASE FLASHBACK OFF statement.
• D、 Change the parameter setting in the SPFILE for the DB_RECOVERY_FILE_DEST parameter using the ALTER SYSTEM SET DB_RECOVERY_FILE_DEST=’’ SCOPE=BOTH statement. Shut down the database using the SHUTDOWN command. Mount the database using the STARTUP MOUNT EXCLUSIVE command and disable Flashback Database using the ALTER DATABASE FLASHBACK OFF statement.

第8题：

Your archive-log destination directory runs out of space. What is the impact of this on the database？（）  

• A、 None. The database will switch over to the stand-by archive-log destination directory.
• B、 A warning message will be written to the alert log of the database，but no adverse impacts to the database will be experienced.
• C、 The database will shut down，and will not restart until you correct the out-of-space situation.
• D、 The database will continue to try to write to the archive-log destination directory for one hour. After one hour，the database will shut down normally.
• E、 Once Oracle has cycled through all online redo logs，it will stop processing any DML or DDL until the out-of-space condition is corrected.

第9题：

Your database is in NOARCHIVELOG mode. You start to do a backup， but your users complain that they dont want you to shut down the database to perform the backup. What options are available to you？（）  

• A、 Put the database in hot backup mode and perform an online backup，including backing up the  archived redo logs.
• B、 Just back up the database datafiles without shutting down the database.
• C、 You will have to wait until you can shut down the database to perform the backup.
• D、 Mark each datafile as backup in progress， back them up individually，and then mark them as backup not in progress. No archived redo logs will need to be backed up.
• E、 Only back up the datafiles that the user will not be touching. Once the user has finished what they were doing，you can shut down the database and back up the datafiles the user changed during the  course of the remaining backup

第10题：

Which statement is true about a whole consistent database backup on a database running in ARCHIVELOG mode（）

• A、The backup will consist of used data blocks only.
• B、The database must be shut down to accomplish the backup.
• C、The backup can be accomplished without shutting down the database.
• D、The backup will contain all database files that have never been backed up.