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.
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问题： Your database instance is running with full workload after database creation. You have decided to use a fixed-size undo tablespace. You want to use the Undo Advisor to estimate the capacity of the undo tablespace. Which two factors must you consider before using the Undo Advisor to estimate the capacity of the undotablespace（）A、The retention period to support flashbackB、The expected length of the longest-running queryC、The number of undo tablespaces in the databaseD、The size of the Flash Recovery Area for the database instance
问题： You have three temporary tablespace groups named G1， G2， and G3 in your database. You are creating a new temporary tablespace as follows： CREATE TEMPORARY TABLESPACE TEMP1 TEMPFILE ’/u1/data/temp1.dbf’ SIZE 10M TABLESPACE GROUP ； Which statement regarding the above command is correct？（） A、 It will create the tablespace TEMP1 in group G1.B、 It will create the tablespace TEMP1 in group G3.C、 It will not add the tablespace TEMP1 to any group.D、 It will create the tablespace TEMP1 in the default group.
问题：You create two resource plans, one for data warehouse loading jobs at night and the other for application jobs at day time. You want the resource plans to activate automatically so that the resource allocation is optimum as desired by the activity.How would you achieve this?（）A、Implement job classesB、Implement Scheduler windowsC、Implement the mapping rule for the consumer groupsD、Set the SWITCH_TIME resource plan directive for both the resource plans
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.
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：To set the history retention period for either window logging or job logging individually, which parameters of the SET_SCHEDULER_ATTRIBUTE procedure need to be used?（）A、LOG_HISTORYB、JOB_LOG_RETENTIONC、WINDOW_LOG_RETENTIOND、WHICH_LOGE、LOG_NAME
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：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： 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： 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：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：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： You perform the following activities during the database upgrade from Oracle Database 10g to Oracle Database 11g: 1. Capture plans for a SQL workload into a SQL Tuning Set (STS) before upgrade. 2. Load these plans from the STS into the SQL plan baseline immediately after the upgrade. What is the reason for performing these activities? （）A、to minimize plan regression due to the use of a new optimizer versionB、to completely avoid the use of new plans generated by a new optimizer versionC、to prevent plan capturing when the SQL statement is executed after the database upgradeD、to keep the plan in the plan history so that it can be used when the older version of the optimizer is used
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： A team of programmers is reviewing a proposed API for a new utility class. After some discussion， theyrealize that they can reduce the number of methods in the API without losing any functionality. If theyimplement the new design，which two OO principles will they be promoting？（）A、Looser couplingB、Tighter couplingC、Lower cohesionD、Higher cohesionE、Weaker encapsulation
问题： You have three production databases, HRDB, FINDB, and ORGDB, that use the same ASM instance. At the end of the day, while all three production database instances are running, you execute the following command on the ASM instance : SQL> shutdown immediate; What is the result of executing this command?（）A、The ASM instance is shut down, but the other instances are still running.B、It results in an error because other database instances are connected to it.C、All the instances, including the ASM instance, are shut down in the IMMEDIATE mode.D、HRDB, FINDB, and ORGDB instances are shut down in the ABORT mode and the ASM instance is shut down in the IMMEDIATE mode.
问题：You decide to enable Flashback Database in your Oracle 10g database so that future recoveries will take less time than traditional recoveries. Which of the following parameters must be included in your initialization parameter file before enabling Flashback Database？（）A、 DB_RECOVERY_FILE_DEST onlyB、 DB_FLASHBACK_RETENTION_TARGET onlyC、 DB_RECOVERY_FILE_DEST_SIZE and DB_RECOVERY_FILE_DEST onlyD、 DB_RECOVERY_FILE_DEST and DB_FLASHBACK_RETENTION_TARGET onlyE、 DB_RECOVERY_FILE_DEST_SIZE， DB_RECOVERY_FILE_DEST andF、 DB_FLASHBACK_RETENTION_TARGET
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：Which two statements are true about WHERE and HAVING clauses? （）A、A WHERE clause can be used to restrict both rows and groups.B、A WHERE clause can be used to restrict rows only.C、A HAVING clause can be used to restrict both rows and groups.D、A HAVING clause can be used to restrict groups only.E、A WHERE clause CANNOT be used in a query of the query uses a HAVING clause.F、A HAVING clause CANNOT be used in subqueries.
