问题：Which two statements are true about encrypting RMAN backup?（） (Choose two.)A、The transparent encryption of backups uses the encryption walletB、The database uses the same encryption key for every encrypted backupC、The password encryption of backups only uses the password while creating and restoring backupD、If transparent encryption is configured, you cannot use the SET ENCRYPTION BY PASSWORD command to make password-protected backups.
查看答案
问题： Given a complete loss of your database， in what order would you need to perform the following RMAN operations to restore it？（） a. restore controlfile b. restore database c. restore spfile d. recover database e. alter database open f. alter database open resetlogsA、 b， a， c， d， eB、 a， c， b， d， fC、 c， a， b， d， eD、 c， a， b， d， fE、 e， a， b， d， c
问题：What are three benefits of performing data definition language （DDL） statements against a partitioned table with the UPDATE GLOBAL INDEXES clause？（）A、Global indexes are rebuilt automatically at the end of the DDL operation thereby avoiding problems with the UNUSABLE status. B、You do not have to search for invalid global indexes after the DDL command completes and rebuild them individually. C、Global indexes are maintained during the operation of the DDL command and therefore can be used by any concurrent query. D、Global indexes remain intact and available for use by data manipulation language （DML） statements even for sessions that have not enabled the skipping of unusable indexes.
问题：Which three statements are true regarding the fine-grained auditing （FGA）？（）A、FGA is possible on SELECT statements only.B、The audit trail for FGA is stored in the FGA_LOG$ table.C、The audit trail for FGA is stored in the AUD_LOG$ table.D、FGA enables a SQL predicate to define when to audit an event.E、FGA audits DELETE statements only when audit columns are specified.F、FGA includes the SQL statement used by the user as part of the audit event entry.
问题：Data files of which three tablespaces can be recovered by performing an open recovery？（）A、TEMPB、UNDOC、INDEXD、SYSAUXE、SYSTEM
问题：Users are performing a large volume of inserts and deletes on the application tables in the APPS tablespace. You observe that there are several warning alerts being generated for the APPS tablespace space usage metrics. Currently， the warning threshold for the tablespace usage metrics is set to 70%. To make the generated alerts more useful as a problem identification tool， you want to reduce the frequency of alert generation for the tablespace usage metrics for the APPS tablespace. What should you do？（）A、 Disable SQL tracing for the APPS tablespace.B、 Disable logging attributes for the APPS tablespace.C、 Modify the tablespace to be a dictionary-managed tablespace.D、 Increase the critical threshold value for the tablespace space usage metrics for the APPS tablespace.E、 Increase the warning threshold value for the tablespace space usage metric for the APPS tablespace.
问题： User A executes the following command to drop a large table in your database： SQL> DROP TABLE trans； While the drop table operation is in progress， user B executes the following command on the same table： SQL> DELETE FROM trans WHERE tr_type=’SL’； Which statement is true regarding the DELETE command（）A、It fails with a "Resource Busy" error.B、It deletes the rows successfully because the table is locked in SHARE mode.C、It fails to delete the records because the table is locked in EXCLUSIVE mode.D、It deletes the rows successfully because the table is locked in SHARE ROW EXCLUSIVE mode.
问题：In a database with the database character set of US7ASCII and a national character set of UTF-8, which datatypes would be capable of storing Unicode data by default?（）A、VARCHAR2B、CHARC、NVARCHAR2D、CLOBE、LONG
问题： 对于以下SQL语句说法正确的是（） SELECT ename FROM emp WHERE sal IN (SELECT MAX(sal) FROM emp GROUP BY deptno);A、这个语句是符合语法的B、这个语句是不能执行的,因为缺少HAVING子句C、这个语句是不能执行的,因为分组的条件列不在SELECT列表中D、这个语句是不能执行的,因为GROUP BY子句应该在主查询中,而不是在子查询中E、在主查询的WHERE条件中,不应该用IN,而应该用等号
问题：How can you reverse the effects of an ALTER DISKGROUP ... DROP DISK command if it has not yet completed？（） A、 Issue the ALTER DISKGROUP ... ADD DISK command.B、 Issue the ALTER DISKGROUP ... UNDROP DISKS command.C、 Issue the ALTER DISKGROUP ... DROP DISK CANCEL command.D、 Retrieve the disk from the Recycle Bin after the operation completes.
问题： You notice a performance change in your production Oracle database and you want to know which change has made this performance difference. You generate the Compare Period Automatic Database Diagnostic Monitor (ADDM) report to further investigation. Which three findings would you get from the report?（）A、It detects any configuration change that caused a performance difference in both time periods.B、It identifies any workload change that caused a performance difference in both time periods.C、It detects the top wait events causing performance degradation.D、It shows the resource usage for CPU, memory, and I/O in both time periods.E、It shows the difference in the size of memory pools in both time periods.F、It gives information about statistics collection in both time periods.
问题：当ORACLE9.2数据库服务器安装后，将自动创建两个具有超级权限的用户，并且要求设定这两个用户的口令，这两个用户是（）A、SYSTEM和MANAGERB、SYS和SYSTEMC、SYS和SYSMAND、ROOT和SUPERMANE、SCOTT和TIGER
问题：Which statement about recovering from the loss of a redo log group is true？（） A、 If the lost redo log group is ACTIVE， you should first attempt to clear the log file.B、 If the lost redo log group is CURRENT， you must clear the log file.C、 If the lost redo log group is ACTIVE， you must restore，perform cancel-based incomplete recovery，and open the database using the RESETLOGS option.D、 If the lost redo log group is CURRENT， you must restore，perform cancel-based incomplete recovery，and open the database using the RESETLOGS option.
问题：Which two statements are true about a job chain? （）(Choose two.)A、A job chain can contain a nested chain of jobs.B、The jobs in a job chain cannot have more than one dependency.C、A job of the CHAIN type can be run using event-based or time-based schedules.D、The jobs in a job chain can be executed only by using the events generated by the Scheduler
问题： Your database is functional with a peak load for the last one hour. You want to preserve the performancestatistics collected during this period to be used for comparison when you analyze the performance of thedatabase in the future. What action would you take to achieve this task（）A、Insert finding directives for ADDM tasks in the future.B、Create a baseline on a pair of snapshots spanning the peak-load period.C、Decrease the snapshot interval in the AWR to collect more snapshots during the peak- load period.D、Set the snapshot retention period in the Automatic Workload Repository （AWR） to zero to avoid automaticpurging of snapshots
问题：In your test database， you find that a user’s session is executing a lot of SQL statements， resulting in the generation of a large number of trace files. While investigating the reason， you find that SQL trace has been enabled at the instance level. You want to disable SQL trace， remotely， only for that user session to reduce the volume of trace data being generated.How do you achieve this objective？（）A、 by setting the SQL_TRACE parameter to FALSE in the parameter fileB、 by using DBMS_MONITOR.SESSION_TRACE_DISABLE to disable the tracing for the user sessionC、 by setting the SQL_TRACE parameter to FALSE by using the ALTER SYSTEM command in the user sessionD、 by setting the SQL_TRACE parameter to FALSE by using the ALTER SESSION command in the user session
问题： You configured automatic archive logging for the database. On the next startup the database runs for a while， but then hangs. After checking the alert log， you determine that all the online redo logs need archiving. Which step was skipped when you set up automatic archive log？（）A、LOG_ARCHIVE_DEST was not set in the parameter file.B、LOG_ARCHIVE_START was not set in the parameter file.C、alter database archivelog； was not executed in MOUNT mode.D、LOG_ARCHIVE_MAX processes were not set in the parameter file.
问题：You plan to set up the Automatic Workload Repository （AWR） baseline metric thresholds for a moving window baseline. Which action would you take before performing this task？（） A、 Compute the baseline statistics.B、 Take an immediate AWR snapshot.C、 Decrease the window size for the baseline.D、 Decrease the expiration time for the baseline.
问题：Your database instance is running.You are not able to access Oracle Enterprise Manager Database Control because the listener is not started.Which tool or utility would you use to start the listener?（）A、Oracle Net ManagerB、Listener Control utilityC、Database Configuration AssistantD、Oracle Net Configuration Assistant
问题：Examine the details of the Top 5 Timed Events in the following Automatic Workloads Repository (AWR)report:What are three possible causes for the latch-related wait events?（）A、The size of the shared pool is too small.B、Cursors are not being shared.C、A large number COMMITS are being performed.D、There are frequent logons and logoffs.E、The buffers are being read into the buffer cache, but some other session is changing the buffers.
