单选题You notice a performance change in your production Oracle 12c database. You want to know which change caused this performance difference. Which method or feature should you use?（）A Compare Period ADDM reportB AWR Compare Period reportC Active Session H

题目

单选题

You notice a performance change in your production Oracle 12c database. You want to know which change caused this performance difference. Which method or feature should you use?（）

Compare Period ADDM report

AWR Compare Period report

Active Session History (ASH) report

Taking a new snapshot and comparing it with a preserved snapshot

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第1题

Very soon you will be performing maintenance operations. You would have several jobs to run as soon as the maintenance period starts. Which method would you use to create jobs without specifying the time period when the job should be run？（）A、 use DBMS_IJOB packageB、 use Oracle SchedulerC、 use DBMS_JOB packageD、 use Oracle Data Pump Export and Import

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第2题

You notice that the performance of your production 24/7 Oracle database significantly degraded.Sometimes you are not able to connect to the instance because it hangs. You do not want to restart thedatabase instance.How can you detect the cause of the degraded performance?（）A、Enable Memory Access Mode, which reads performance data from SGA.B、Use emergency monitoring to fetch data directly from SGA analysis.C、Run Automatic Database Diagnostic Monitor (ADDM) to fetch information from the latest Automatic Workload Repository (AWR) snapshots.D、Use Active Session History (ASH) data and hang analysis in regular performance monitoring.E、Run ADDM in diagnostic mode.

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第3题

Your database instance is functional for the past one month. The Automatic Workload Repository（AWR） snapshot retention is set to 7 and the STATISTICS_LEVEL initialization parameter is set to TYPICAL. You receive a complaint about the poor performance of the database between 7 PM and 9 PM of theprevious day. Choose two actions any of which can be referred to first to diagnose the problem. （）A、Use the Active Session History report.B、Use the AWR Compare Periods report.C、Use an ADDM analysis between 7 PM and 9 PM of the previous day.D、Use the AWR Compare Period report between 7 PM and 9 PM of the previous day.

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第4题

You are using flat files as the data source for one of your data warehousing applications. To optimizethe application performance， you plan to move the data from the flat files toclustered tablesin an Oracle database. While migrating the data， you want to have minimal impact on the database performance and optimize thedata load operation. Which method would you use to load data into the Oracle database（）A、Use the external table population.B、Use the Oracle Data Pump export and import utility.C、Use the conventional path data load of the SQL*Loader utility.D、Use the INSERT INTO...SELECT command to load the data.

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第5题

The application workload on your database is same between 10 a.m. and 11 a.m. on weekdays. Suddenly you observe poor performance between 10 a.m. and 11 a.m. in the middle of the week. How would you identify the changes in configuration settings， workload profile， and statistics to diagnose the possible causes of the performance degradation？（）A、by using the SQL access advisorB、by using the Automatic Workload Repository reportC、by running the Automatic Database Diagnostic Monitor （ADDM）D、by using the Automatic Workload Repository Compare Period reportE、by analyzing the output of the V$ACTIVE_SESSION_HISTORY view

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第6题

You are using flat files as the data source for one of your data warehousing applications. You plan to move the data from the flat file structures to an Oracle database to optimize the application performance. In your database you have clustered tables. While migrating the data， you want to have minimal impact on the database performance and optimize the data load operation. Which method would you use to load data into Oracle database？（）A、use the external table populationB、use the Oracle Data Pump export and import utilityC、use the conventional path data load of SQL*Loader utilityD、use the direct path data load of Oracle export and import utility

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第7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

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单选题You notice a performance change in your production Oracle 12c database. You want to know which change caused this performance difference. Which method or feature should you use?（）A Compare Period ADDM reportB AWR Compare Period reportC Active Session H

题目

更多“单选题You notice a performance change in your production Oracle 12c database. You want to know which change caused this performance difference. Which method or feature should you use?（）A Compare Period ADDM reportB AWR Compare Period reportC Active Session H”相关问题

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