默认题库 - OCP 11G认证

单选题

Because of a logical corruption in your production database, you wanted to perform Tablespace Point in Time Recovery (TSPITR). But before you start the recovery, you queried the TS_PITR_OBJECTS_TO_BE_DROPPED view and realized that there are a large number of objects that would be dropped when you start the recovery by using this method.You want to preserve these objects. Which option must you use to perform TSPITR and preserve the object?（）

A. Perform Export before TSPITR and Import after TSPITR
B. Move objects to another schema that has the same tablespace assigned
C. Perform Incomplete Recovery before TSPITR with the Log Sequence Number (LSN)
D. Perform Incomplete Recovery before TSPITR with the System Change Number (SCN)

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单选题

You need to configure fine-grained access control to external network resources from within your database. You create an access control list (ACL) using the DBMS_NETWORK_ACL_ADMIN package. Which statement is true regarding the ACL created?（）

A. It is a list of remote database links stored in the XML file that are available to the users of the database.
B. It is a list of users and network privileges stored in the XML file according to which a group of users can connect to one or more hosts.
C. It is a list of users and network privileges stored in the data dictionary according to which a group of users can connect to one or more hosts.
D. It is the list of the host names or the IP addresses stored in the data dictionary that can connect to your database through PL/SQL network utility packages such as UTL_TC

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单选题

The Automatic Database Diagnostic Monitor (ADDM) analysis runs every 60 minutes on your database. Your database is facing a series of interrelated problems over a period of two hours. You need to ensure that the ADDM analysis is run over a time span of two hours in future. What would you do?（）

A. Create two custom ADDM tasks.
B. Modify the AWR snapshot time interval to two hours.
Create a new scheduler window for a time period of two hours.
D. Modify the Automatic Workload Repository (AWR) snapshot retention period to two hours.

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单选题

You are working in an online transaction processing (OLTP) environment. You use the FLASHBACKTABLE command to flash back the CUSTOMERS table. Before executing the FLASHBACK TABLE command, the system change number (SCN) was 663571. After flashing back the CUSTOMERS table, you realize that the table is not in the correct state. Now, you need to reverse the effects of the FLASHBACK TABLE command. Which is the fastest and the most efficient option to reverse the effects of the FLASHBACK TABLE command?（）

A. Restore the backup control file and open the database with RESETLOGS option.
B. Perform point-in-time recovery because flashback cannot be performed again on this table
C. Execute the FLASHBACK DATABASE statement to retrieve the CUSTOMERS table as it was at SCN 663571
D. Execute another FLASHBACK TABLE statement to retrieve the CUSTOMERS table as it was at SCN 663571

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多选题

Which two commands never trigger an implicit rebalancing within the disk group?（）

ALTER DISKGROUP misc MOUNT;
B. ALTER DISKGROUP misc DROP DISK misc2;
C. ALTER DISKGROUP misc CHECK ALL NOREPAIR;
D. ALTER DISKGROUP misc RESIZE ALL SIZE 1023m;
E. ALTER DISKGROUP dgroupA ADD DISK '/devices/A*'

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单选题

Note the following statements that use flashback technology: 1. FLASHBACK TABLE TO SCN ; 2. SELECT * FROM AS OF SCN 123456; 3. FLASHBACK TABLE TO BEFORE DROP; 4. FLASHBACK DATABASE TO TIMESTAMP ; 5. SELECT * FROM VERSIONS AS OF SCN 123456 AND 123999; Which of these statements will be dependent on the availability of relevant undo data in the undo segment?（）

A. 1, 2, and 5
B. 1, 3, and 4
C. 2, 3, 4, and 5
D. 1, 2, 3, 4, and 5

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单选题

In Recovery Manager (RMAN), you are taking image copies of the data files of your production database and rolling them forward at regular intervals. You attempt to restart your database. After a regular maintenance task, you realize that one of the data files that belongs to the USERS tablespace is damaged and you need to recover the data file by using the image copy. Because a media failure caused the data file to be damaged, you want to place the d ata file in a different location while restoring the file. Which option must you consider for this task?（）

A. using only the RMAN SWITCH command to set the new location for the data file
B. placing the database in the MOUNT state for the restore and recovery operations.
C. using an RMAN RUN block with the SET NEWNAME and then the SWITCH command.
D. configuring two channels: one for the restore operation and the other for the recovery operatio

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单选题

Which statement describes the effect of the execution of the above PL/SQL block?（）

A. The plan baselines are verified with the SQL profiles.
B. All fixed plan baselines are converted into nonfixed plan baselines.
C. All the nonaccepted SQL profiles are accepted into the plan baseline.
D. The nonaccepted plans in the SQL Management Base are verified with the existing plan baselines.

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多选题

Which tasks are run automatically as part of the Automated Maintenance Task by default?（）

A. Segment Advisor
B. SQL Access Advisor
C. Optimizer statistics gathering
D. Automatic SQL Tuning Advisor
E. Automatic Database Diagnostics Monitor

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单选题

Which statement is true for enabling Enterprise Manager Support Workbench in Oracle Database 11g to upload the physical files generated by Incident Packaging Service (IPS) to MetaLink?（）

A. The database must be running in ARCHIVELOG mode.
B. No special setup is required, and the feature is enabled by default.
C. The path for the Automatic Diagnostic Repository (ADR) must be configured with the DIAGNOSTIC_DEST initialization parameter.
D. The Enterprise Manager Support Workbench can be enabled only if the background process manageability monitor (MMON) is configured.
E. Select the Enable option in the Oracle Configuration Manager Registration window during the installation of the Oracle Database 11g software, provide valid MetaLink credentials and select license agreement.

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