One of the tablespaces is read-only in your database. The loss of all control files forced you to re-create the control file. Which operation do you need to perform after re-creating the control file and opening the database？（）

Which one of the following statements about the TNSPING utility is correct？（）

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Which one of the following files includes the parameter NAMES.DIRECTORY_PATH（hostname）？（）

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User Scott has updated the salary of one of the employees in the EMPLOYEES table and has not committed the transaction. What are the two types of locks that this scenario would lead to？（）

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You work as a database administrator for Supportcenter.cn. One of the user sessions was terminated abnormally in the middle of a transaction. What does Oracle database do to recover it？（）

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One of the user sessions was terminated abnormally in the middle of a transaction. What does Oracle database do to recover it？（）

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In Oracle 11g，by default which one of the following conditions implicitly enables Automatic PGA Memory Management？（）  

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What feature comes into play to help ensure the completion of the backup should one of three backup devices fail during a backup that is using three different channels?（）

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Which one of the following files contains records that do not meet the specified load criteria in the SQL*Loader control file？（）

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If you wanted to find the name and location of your control files, you could find that information in each of the following locations except one. Which is it?（）

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You are attempting to increase the checkpoint interval on your database. Each of the following choices will affect the duration and/or frequency of checkpoints, except one.  Which is it?（）

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