单选题You find today’s performance of your production database to be the best ever. Therefore， you want to be notified in the future whenever the performance degrades by 10% of today’s performance. What is the first step that you would take to ensure this？（）

题目
单选题
You find today’s performance of your production database to be the best ever. Therefore， you want to be notified in the future whenever the performance degrades by 10% of today’s performance. What is the first step that you would take to ensure this？（）
A

create baseline metrics for today’s performance

B

write the current database metrics to a database table and create a trigger to compare with future database statistics

C

write the current database metrics to a flat file and create an operating script to compare with future database statistics

D

write the current database metrics to a database table and create a procedure to compare with future database statistics

E

write the current database metrics to a database table and submit a job using DBMS_JOB to compare with future database statistics

相似考题

1.—____________________?—I want to be a scientist and it ‟s also my childhood dream.A. What ‟s your jobB. What ‟re you doingC. Are you a scientistD. What ‟s your dream for the future

2.You have created a baseline metric， DISK_IO_BL， for the disk I/O metrics in your PROD database and you have been getting notifications whenever the database performance degrades. You optimize the database I/O to gain the performance and you decide to remove the baseline metrics. Which method would you use to remove the DISK_IO_BL baseline metrics？（）A、The baseline， once created， cannot be removed.B、Disable the baseline metrics in the Database Control Manage Metrics page.C、The baseline will be automatically removed once the database performance has been optimized.D、Drop the baseline metrics by usingDBMS_WORKLOAD_REPOSITORY.DROP_BASELINE procedure.

3.You find today’s performance of your production database to be the best ever. Therefore， you want to be notified in the future whenever the performance degrades by 10% of today’s performance. What is the first step that you would take to ensure this？（）A、create baseline metrics for today’s performanceB、write the current database metrics to a database table and create a trigger to compare with future database statisticsC、write the current database metrics to a flat file and create an operating script to compare with future database statisticsD、write the current database metrics to a database table and create a procedure to compare with future database statisticsE、write the current database metrics to a database table and submit a job using DBMS_JOB to compare with future database statistics

4.－ ()－ Today’s rate is listed on the board here.A、What’s the exchange rate todayB、What kind of currency do you want to exchange forC、What’s the amount you’d like to exchange

更多“单选题You find today’s performance of your production database to be the best ever. Therefore， you want to be notified in the future whenever the performance degrades by 10% of today’s performance. What is the first step that you would take to ensure this？（）”相关问题

  • 第1题：

    You are working on the 24X7 database with high transaction volume， to ensure faster instance recovery on your database you set the FAST_START_MTTR_TARGET initialization parameter to a very low value. What effect it will have on the database？（）

    • A、The database performance would be enhanced.
    • B、The redo log files would be get filled more frequently.
    • C、The overall database performance would be degraded.
    • D、The mean time to recover （MTTR） would be increased.

    正确答案:C

  • 第2题：

    You are maintaining the SALES database for eSoft Corporation. You have not configured ASMM on the database. You want to know what size of the SGA will provide the best performance.  Which advisor would you use to determine the suitable size of the SGA？（）

    • A、 SQL Tuning Advisor
    • B、 Undo Advisor
    • C、 ADDM
    • D、 Memory Advisor

    正确答案:D

  • 第3题：

    You want to create a new optimized database for your transactional production environment to be used by a financial application. While creating the database， you want the Oracle software to take care of all basic settings to optimize the database performance. Which method would you use to achieve this objective？（）

    • A、Use the CREATE DATABASE .. command to create the database with Oracle-managed files. 
    • B、Use the Database Configuration Assistant (DBCA) to create the database with Oracle-managed files. 
    • C、Use Enterprise Manager to create a new database with the Online Transaction Processing (OLTP) option. 
    • D、Use Database Configuration Assistant (DBCA) to create the database with Transaction Processing template. 
    • E、Use the CREATE DATABASE .. command to create the database with Automatic Storage Management (ASM) file system.

    正确答案:D

  • 第4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 population
    • B、use the Oracle Data Pump export and import utility
    • C、use the conventional path data load of SQL*Loader utility
    • D、use the direct path data load of Oracle export and import utility

    正确答案:C

  • 第5题：

    You received complaints about the degradation of SQL query performance. You identified top SQL queries that consume time. What would be your next step to find out recommendations about statistics collection and restructuring of the SQL statement to improve query performance？（）

    • A、run Segment Advisor
    • B、run SQL Tuning Advisor on top SQL statements
    • C、run the Automatic Workload Repository （AWR） report
    • D、run the Automatic Database Diagnostic Monitor （ADDM）on top SQL statements

    正确答案:B

  • 第6题：

    单选题
    In your test database， you have created the ORDERS table as an index-organized table （IOT）. To facilitate faster querying， you have created a mapping table and a bitmap index on the ORDER_FILLED column. You observe that the query performance degrades when users perform a large volume of transactions.  While investigating the reason， you find that the mapping table segment is fragmented， leading to poor performance.   Which option would you use to defragment the mapping table without affecting the original table data？（）
    A

    export and import the mapping table

    B

    drop and re-create the mapping table

    C

    truncate the mapping table and reinsert the values

    D

    use the ALTER TABLE···REBUILD command to defragment the mapping table


    正确答案： B
    解析： 暂无解析

  • 第7题：

    单选题
    You want to create a new optimized database for your transactional production environment to be used by a financial application. While creating the database， you want the Oracle software to take care of all basic settings to optimize the database performance. Which method would you use to achieve this objective？（）
    A

    Use the CREATE DATABASE .. command to create the database with Oracle-managed files. 

    B

    Use the Database Configuration Assistant (DBCA) to create the database with Oracle-managed files. 

    C

    Use Enterprise Manager to create a new database with the Online Transaction Processing (OLTP) option. 

    D

    Use Database Configuration Assistant (DBCA) to create the database with Transaction Processing template. 

    E

    Use the CREATE DATABASE .. command to create the database with Automatic Storage Management (ASM) file system.


    正确答案： C
    解析： 暂无解析

  • 第8题：

    单选题
    You are maintaining the SALES database for eSoft Corporation. You have not configured ASMM on the database. You want to know what size of the SGA will provide the best performance.  Which advisor would you use to determine the suitable size of the SGA？（）
    A

     SQL Tuning Advisor

    B

     Undo Advisor

    C

     ADDM

    D

     Memory Advisor


    正确答案： C
    解析： 暂无解析

  • 第9题：

    单选题
    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 population

    B

    use the Oracle Data Pump export and import utility

    C

    use the conventional path data load of SQL*Loader utility

    D

    use the direct path data load of Oracle export and import utility


    正确答案： A
    解析： 暂无解析

  • 第10题：

    单选题
    You work with a newly created database. Presently， there is no application load on the database instance. You want to create a baseline for tuning the application， so you decide to collect recommendations that can be implemented to improve application performance.  What action must you take to achieve this？（）
    A

     Run Segment Advisor

    B

     Run the SQL Tuning Advisor （STA）

    C

     Run the Automatic Workload Repository （AWR） report

    D

     Run the SQL Access Advisor with a hypothetical workload


    正确答案： C
    解析： 暂无解析

  • 第11题：

    单选题
    You work as a database administrator for Certkiller .com. In your database server， the parameter PLSQL_OPTIMIZE_LEVEL has been set to 2. What would this setting achieve？（）
    A

    It degrades the run time and compiler performance.

    B

    It provides better run time and compiler performance.

    C

    It provides better optimization of the statement during parse time.

    D

    It forces the rule based optimizer to be used for statement optimization.

    E

    It provides better run time performance but slightly degraded compiler performance. 

    F

    It provides better run time performance but slightly degraded run time performance.


    正确答案： A
    解析： 暂无解析

  • 第12题：

    单选题
    You are working on the 24X7 database with high transaction volume， to ensure faster instance recovery on your database you set the FAST_START_MTTR_TARGET initialization parameter to a very low value. What effect it will have on the database？（）
    A

    The database performance would be enhanced.

    B

    The redo log files would be get filled more frequently.

    C

    The overall database performance would be degraded.

    D

    The mean time to recover （MTTR） would be increased.


    正确答案： A
    解析： 暂无解析

  • 第13题：

    You work as a database administrator for Supportcenter.cn. You want to be notified when the number of disk I/O increases by 10% of what it was yesterday. You create a baseline metric for yesterday’s disk I/O performance. How do you use the baseline metrics to achieve your objective？（）

    • A、Save the baseline in the database
    • B、Save the baseline in the Database Control Home Page
    • C、Create a procedure to read and apply the baseline to disk I/O metrics
    • D、Apply the baseline to the disk I/O metrics in the Mange Metrics page
    • E、Alter the disk I/O metrics to include baseline by using the ALTER METRICScommnd

    正确答案:D

  • 第14题：

    You work as a database administrator for Certkiller .com. In your database server， the parameter PLSQL_OPTIMIZE_LEVEL has been set to 2. What would this setting achieve？（）

    • A、It degrades the run time and compiler performance.
    • B、It provides better run time and compiler performance.
    • C、It provides better optimization of the statement during parse time.
    • D、It forces the rule based optimizer to be used for statement optimization.
    • E、It provides better run time performance but slightly degraded compiler performance. 
    • F、It provides better run time performance but slightly degraded run time performance.

    正确答案:E

  • 第15题：

    You find that the execution time of reports in your datawarehouse application is significantly high. You suspect the lack of indexes to be the reason for the degradation in performance. Which advisory component would you refer to， in order to determine the appropriate indexes？（）

    • A、 Memory Advisor
    • B、 Segment Advisor
    • C、 SQL Access Advisor
    • D、 Automatic Workload Repository （AWR）
    • E、 Automatic Database Diagnostic Monitor （ADDM）

    正确答案:C

  • 第16题：

    In your production database， you have observed that the database server performance degrades whenever there is a switch between the log groups. On further investigation， you find that the database is running in ARCHIVELOG mode and the archived log files are being written to the same disk that is used to store the redo log members.  Which two actions would you take to improve the performance of the database server？ （）

    • A、increase the size of the redo log buffer
    • B、increase the number of redo log groups
    • C、increase the number of log writer processes
    • D、increase the number of ARCn processes
    • E、change the appropriate LOG_ARCHIVE_DEST_n parameter to place the archived log files in a separate location

    正确答案:B,E

  • 第17题：

    多选题
    In your production database， you have observed that the database server performance degrades whenever there is a switch between the log groups. On further investigation， you find that the database is running in ARCHIVELOG mode and the archived log files are being written to the same disk that is used to store the redo log members.  Which two actions would you take to improve the performance of the database server？ （）
    A

    increase the size of the redo log buffer

    B

    increase the number of redo log groups

    C

    increase the number of log writer processes

    D

    increase the number of ARCn processes

    E

    change the appropriate LOG_ARCHIVE_DEST_n parameter to place the archived log files in a separate location


    正确答案： B,E
    解析： 暂无解析

  • 第18题：

    单选题
    You received complaints about the degradation of SQL query performance. You identified top SQL queries that consume time. What would be your next step to find out recommendations about statistics collection and restructuring of the SQL statement to improve query performance？（）
    A

    run Segment Advisor

    B

    run SQL Tuning Advisor on top SQL statements

    C

    run the Automatic Workload Repository （AWR） report

    D

    run the Automatic Database Diagnostic Monitor （ADDM）on top SQL statements


    正确答案： B
    解析： 暂无解析

  • 第19题：

    单选题
    You find that the execution time of reports in your datawarehouse application is significantly high. You suspect the lack of indexes to be the reason for the degradation in performance.  Which advisory component would you refer to， in order to determine the appropriate indexes？（）
    A

    Memory Advisor

    B

    Segment Advisor

    C

    SQL Access Advisor

    D

    Automatic Workload Repository （AWR）

    E

    Automatic Database Diagnostic Monitor （ADDM）


    正确答案： D
    解析： 暂无解析

  • 第20题：

    单选题
    Your database supports an online transaction processing (OLTP) application. The application is undergoing some major schema changes, such as addition of new indexes and materialized views. You want to check the impact of these changes on workload performance. What should you use to achieve this?（）
    A

    Database replay

    B

    SQL Tuning Advisor

    C

    SQL Access Advisor

    D

    SQL Performance Analyzer

    E

    Automatic Workload Repository compare reports


    正确答案： D
    解析： 暂无解析

  • 第21题：

    单选题
    You work as a database administrator for Supportcenter.cn. You want to be notified when the number of disk I/O increases by 10% of what it was yesterday. You create a baseline metric for yesterday’s disk I/O performance. How do you use the baseline metrics to achieve your objective？（）
    A

    Save the baseline in the database

    B

    Save the baseline in the Database Control Home Page

    C

    Create a procedure to read and apply the baseline to disk I/O metrics

    D

    Apply the baseline to the disk I/O metrics in the Mange Metrics page

    E

    Alter the disk I/O metrics to include baseline by using the ALTER METRICScommnd


    正确答案： A
    解析： 暂无解析

  • 第22题：

    单选题
    You find that the execution time of reports in your datawarehouse application is significantly high. You suspect the lack of indexes to be the reason for the degradation in performance. Which advisory component would you refer to， in order to determine the appropriate indexes？（）
    A

     Memory Advisor

    B

     Segment Advisor

    C

     SQL Access Advisor

    D

     Automatic Workload Repository （AWR）

    E

     Automatic Database Diagnostic Monitor （ADDM）


    正确答案： D
    解析： 暂无解析

  • 第23题：

    单选题
    You have created a baseline metric， DISK_IO_BL， for the disk I/O metrics in your PROD database and you have been getting notifications whenever the database performance degrades. You optimize the database I/O to gain the performance and you decide to remove the baseline metrics. Which method would you use to remove the DISK_IO_BL baseline metrics？（）
    A

    The baseline， once created， cannot be removed.

    B

    Disable the baseline metrics in the Database Control Manage Metrics page.

    C

    The baseline will be automatically removed once the database performance has been optimized.

    D

    Drop the baseline metrics by usingDBMS_WORKLOAD_REPOSITORY.DROP_BASELINE procedure.


    正确答案： D
    解析： 暂无解析

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