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Which two statements are true about the Automatic Database Diagnostic Monitor (ADDM)()A、The ADDM requires at least four AWR snapshots for analysis.B、The ADDM runs after each AWR snapshot is collected automatically by MMON.C、The results of the ADDM analysi

题目

Which two statements are true about the Automatic Database Diagnostic Monitor (ADDM)()

  • A、The ADDM requires at least four AWR snapshots for analysis.
  • B、The ADDM runs after each AWR snapshot is collected automatically by MMON.
  • C、The results of the ADDM analysis are stored in the Automatic Workload Repository (AWR).
  • D、The ADDM analysis provides only diagnostic information but does not provide recommendations.
  • E、The ADDM calls other advisors if required, but does not provide recommendations about the advisors.

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更多“Which two statements are true about the Automatic Database Diagnostic Monitor (ADDM)()A、The ADDM requires at least four AWR snapshots for analysis.B、The ADDM runs after each AWR snapshot is collected automatically by MMON.C、The results of the ADDM analysi”相关问题
  • 第1题:

    关于数据库ADDM说法正确的两项是()。

    • A、ADDM分析需要最近的4个AWR快照
    • B、ADDM的分析结果存储在AWR报告中
    • C、ADDM运行在mmon自动采集AWR快照之后
    • D、ADDM分析只提供诊断信息,但不提供建议
    • E、如果需要,ADDM调用其他顾问,但不提供顾问建议

    正确答案:B,C

  • 第2题:

    下面有关Automatic Database Diagnostic Monitor(ADDM)的描述中,那两项是正确的?()

    • A、ADDM仅提供诊断分析,不提供建议
    • B、ADDM分析结果存放在Automatic Workload Repository中
    • C、ADDM是MMON进程在每次awr快照收集后自动运行
    • D、ADDM可以调用其它建议如果需要,但是不会产生推荐建议
    • E、ADDM至少需要4个awr快照进行分析

    正确答案:B,C

  • 第3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.
    • C、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.

    正确答案:B

  • 第4题:

    You executed the following PL/SQL block successfully:   VARIABLE tname VARCHAR2(20)  BEGIN dbms_addm.insert_finding_directive (NULL, DIR_NAME=>’Detail CPU Usage’, FINDING_NAME=>’CPU Usage’, MIN_ACTIVE_SESSIONS=>0, MIN_PERC_IMPACT=>90);  :tname := ’database ADDM task4’; dbms_addm.analyze_db(:tname, 150, 162);  END; /    Then you executed the following command:   SQL> SELECT dbms_addm.get_report(:tname) FROM DUAL;   The above command produces Automatic Database Diagnostic Monitor (ADDM) analysis()

    • A、 with the CPU Usage finding if it is less than 90
    • B、 without the CPU Usage finding if it is less than 90
    • C、 with the CPU Usage finding for snapshots below 90
    • D、 with the CPU Usage finding for snapshots not between 150 and 162

    正确答案:B

  • 第5题:

    You plan to collect the Automatic Workload Repository (AWR) data every Monday morning for a month. You want Oracle Database to automatically create a baseline every Monday and remove the old baseline.  What is the correct action to achieve this?()  

    • A、 Create and populate a SQL Tuning Set from the AWR on every Monday.
    • B、 Change the RETENTION setting for the AWR snapshots to 7 days on Monday.
    • C、 Create a repeating baseline template.
    • D、 Insert a finding directive for future ADDM tasks.

    正确答案:C

  • 第6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7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.

    正确答案:B

  • 第8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

    正确答案:B

  • 第9题:

    You create a new Automatic Database Diagnostic Monitor (ADDM) task:  instance_analysis_mode_task. To view the ADDM report, you use the following command:   SQL> SELECT dbms_addm.get_report(’my_instance_analysis_mode_task’) FROM dual;   You want to suppress ADDM output relating to Segment Advisor actions on user SCOTT’s segments.  What would you do to achieve this?()

    • A、 Add a finding directive for the ADDM task.
    • B、 Add a segment directive for the ADDM task.
    • C、 Add a parameter directive for the ADDM task.
    • D、 Disable the Segment Advisor from the Automatic Maintenance Task.

    正确答案:B

  • 第10题:

    多选题
    Which two statements are true about the Automatic Database Diagnostic Monitor (ADDM)()
    A

    The ADDM requires at least four AWR snapshots for analysis.

    B

    The ADDM runs after each AWR snapshot is collected automatically by MMON.

    C

    The results of the ADDM analysis are stored in the Automatic Workload Repository (AWR).

    D

    The ADDM analysis provides only diagnostic information but does not provide recommendations.

    E

    The ADDM calls other advisors if required, but does not provide recommendations about the advisors.


    正确答案: A,C
    解析: 暂无解析

  • 第11题:

    多选题
    Which two statements are true about the Automatic Workload Repository (AWR)()
    A

    All AWR tables belong to the SYSTEM schema.

    B

    The AWR contains systemwide tracing and logging information.

    C

    The snapshots collected by the AWR are accessible through data dictionary views.

    D

    The snapshots collected by the AWR are used by self-tuning components in the database.


    正确答案: B,D
    解析: AWR 基础结构由两个主要部分组成:  • 一个内存中统计信息收集工具,Oracle Database 11g组件使用它来收集统计信息。出于性能方面的考虑,这些统计信息存储在内存中。可以通过动态性能(V$) 视图访问存储在内存中的统计信息。  • 代表该工具持久部分的AWR 快照。AWR 快照可以通过数据字典视图和EnterpriseManager Database Control 来访问。  它为内部Oracle 服务器组件提供服务来收集、处理、维护和使用性能统计信息,以便进行问题检测和自优化。 AWR 中包含数百个表,所有这些表均属于SYSMAN方案且存储在SYSAUX表空间中。

  • 第12题:

    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.

    C

     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.


    正确答案: D
    解析: 暂无解析

  • 第13题:

    Your database is functional with a peak load for the last one hour. You want to preserve theperformance statistics collected during this period to be used for comparison when you analyze theperformance of the database 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 automatic purging of snapshots.

    正确答案:B

  • 第14题:

    在oracle数据库中,关于数据库ADDM说法正确的两项是()。

    • A、ADDM的分析结果存储在AWR报告中
    • B、如果需要,ADDM调用其他顾问,但不提供顾问建议
    • C、ADDM运行在mmon自动采集AWR快照之后
    • D、ADDM分析只提供诊断信息,但不提供建议
    • E、ADDM分析需要最近的4个AWR快照

    正确答案:A,C

  • 第15题:

    In an Oracle 10g database, the in-memory statistics are gathered at regular intervals and used to perform growth-trend analysis and capacity planning of the database. Which component stores these statistics?()

    • A、 Recovery catalog
    • B、 Oracle Enterprise Manager Repository
    • C、 Automatic Workload Repository (AWR)
    • D、 Oracle 10g Enterprise Manager Grid Control
    • E、 Automatic Database Diagnostic Monitor (ADDM)

    正确答案:C

  • 第16题:

    You work as a database administrator for Certkiller .com. You find that reports are running for a long time in your data warehousing applications. You suspect a lack of indexes is the reason for the performance degradation.  Which advisory component would you refer to, in order to determine the appropriate indexes?()

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

    正确答案:C

  • 第17题:

    Which two statements are true about the Automatic Workload Repository (AWR)()

    • A、All AWR tables belong to the SYSTEM schema.
    • B、The AWR contains systemwide tracing and logging information.
    • C、The snapshots collected by the AWR are accessible through data dictionary views.
    • D、The snapshots collected by the AWR are used by self-tuning components in the database.

    正确答案:C,D

  • 第18题:

    Which setting enables the baselines by default in Oracle Database 11g?()  

    • A、 setting the STATISTICS_LEVEL parameter to TYPICAL
    • B、 adding filters to the Automatic Database Diagnostic Monitor (ADDM)
    • C、 enabling Automated Maintenance Task using Oracle Enterprise Manager
    • D、 setting the OPTIMIZER_USE_PENDING_STATISTICS parameter to TRUE

    正确答案:A

  • 第19题:

    In an Oracle 10g database, the in/x7fmemory statistics are gathered at regular intervals and used to perform growth/x7ftrend analysis and capacity planning of the database. Which component stores these statistics?()

    • A、recovery catalog
    • B、Oracle Enterprise Manager Repository
    • C、Automatic Workload Repository (AWR)
    • D、Oracle 10g Enterprise Manager Grid Control
    • E、Automatic Database Diagnostic Monitor (ADDM)

    正确答案:A

  • 第20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21题:

    单选题
    In an Oracle 10g database, the in-memory statistics are gathered at regular intervals and used to perform growth-trend analysis and capacity planning of the database. Which component stores these statistics?()
    A

    recovery catalog

    B

    Oracle Enterprise Manager Repository

    C

    Automatic Workload Repository (AWR)

    D

    Oracle 10g Enterprise Manager Grid Control

    E

    Automatic Database Diagnostic Monitor (ADDM)


    正确答案: C
    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 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