单选题In your multitenant container database (CDB) containing pluggable databases (PDB), users complain about performance degradation. How does real-time Automatic database Diagnostic Monitor (ADDM) check performance degradation and provide solutions?（）A It

题目
单选题
In your multitenant container database (CDB) containing pluggable databases (PDB), users complain about performance degradation. How does real-time Automatic database Diagnostic Monitor (ADDM) check performance degradation and provide solutions?（）
A

It collects data from SGA and compares it with a preserved snapshot.

B

It collects data from SGA, analyzes it, and provides a report.

C

It collects data from SGA and compares it with the latest snapshot.

D

It collects data from both SGA and PGA, analyzes it, and provides a report

相似考题

1.Your multitenant container database has three pluggable databases (PDBs): PDB1, PDB2, and PDB3.Which two RMAN commands may be; used to back up only the PDB1 pluggable database?()A. BACKUP PLUGGABLE DATABASE PDB1 while connected to the root containerB. BACKUP PLUGGABLE DATABASE PDB1 while connected to the PDB1 containerC. BACKUP DATABASE while connected to the PDB1 containerD. BACKUP DATABASE while connected to the boot containerE. BACKUP PLUGGABLE database PDB1 while connected to PDB2

2.Your multitenant container database, CDB1, is running in ARCHIVELOG mode and has two pluggable databases, HR_PDB and ACCOUNTS_PDB. An RMAN backup exists for the database.You issue the command to open ACCOUNTS_PDB and find that the USERDATA.DBF data file for the default permanent tablespace USERDATA belonging to ACCOUNTS_PDB is corrupted.What should you do before executing the commands to restore and recover the data file in ACCOUNTS_PDB?（）A. Place CDB1 in the mount stage and then the USERDATA tablespace offline in ACCOUNTS_PDb.B. Place CDB1 in the mount stage and issue the ALTER PLUGGABLE DATABASE accounts_pdb CLOSE IMMEDIATE command.C. Issue the ALTER PLUGGABLE DATABASE accounts_pdb RESTRICTED command.D. Take the USERDATA tablespace offline in ACCOUNTS_PDb.

3.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.

4.Your multitenant container database (CDB) is running in ARCHIVELOG mode. You connect to the CDB RMAN.Examine the following command and its output:You execute the following command:RMAN > BACKUP DATABASE PLUS ARCHIVELOG;Which data files will be backed up?（）A. Data files that belong to only the root containerB. Data files that belong to the root container and all the pluggable databases (PDBs)C. Data files that belong to only the root container and PDB$SEEDD. Data files that belong to the root container and all the PDBs excluding PDB$SEED

参考答案和解析
正确答案： C
解析： 暂无解析
更多“单选题In your multitenant container database (CDB) containing pluggable databases (PDB), users complain about performance degradation. How does real-time Automatic database Diagnostic Monitor (ADDM) check performance degradation and provide solutions?（）A It ”相关问题

  • 第1题：

    Identify two correct statements about multitenant architectures.（）

    • A、Multitenant architecture can be deployed only in a Real Application Clusters (RAC) configuration.
    • B、Multiple pluggable databases (PDBs) share certain multitenant container database (CDB) resources.
    • C、Multiple CDBs share certain PDB resources.
    • D、Multiple non-RAC CDB instances can mount the same PDB as long as they are on the same server.
    • E、Patches are always applied at the CDB level.
    • F、A PDB can have a private undo tablespace.

    正确答案:B,E

  • 第2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3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4题：

    Your multitenant container database (CDB) is running in ARCHIVELOG mode. You connect to the CDB RMAN. Examine the following command and its output: You execute the following command: RMAN > BACKUP DATABASE PLUS ARCHIVELOG; Which data files will be backed up?（）

    • A、Data files that belong to only the root container
    • B、Data files that belong to the root container and all the pluggable databases (PDBs)
    • C、Data files that belong to only the root container and PDB$SEED
    • D、Data files that belong to the root container and all the PDBs excluding PDB$SEED

    正确答案:B

  • 第5题：

    Your multitenant container database, CDB1, is running in ARCHIVELOG mode and has two pluggable databases, HR_PDB and ACCOUNTS_PDB. An RMAN backup exists for the database. You issue the command to open ACCOUNTS_PDB and find that the USERDATA.DBF data file for the default permanent tablespace USERDATA belonging to ACCOUNTS_PDB is corrupted. What should you do before executing the commands to restore and recover the data file in ACCOUNTS_PDB?（）

    • A、Place CDB1 in the mount stage and then the USERDATA tablespace offline in ACCOUNTS_PDb.
    • B、Place CDB1 in the mount stage and issue the ALTER PLUGGABLE DATABASE accounts_pdb CLOSE IMMEDIATE command.
    • C、Issue the ALTER PLUGGABLE DATABASE accounts_pdb RESTRICTED command.
    • D、Take the USERDATA tablespace offline in ACCOUNTS_PDb.

    正确答案:D

  • 第6题：

    In your multitenant container database (CDB) with two pluggable database (PDBs). You want to create a new PDB by using SQL Developer. Which statement is true?（）

    • A、The CDB must be open.
    • B、The CDB must be in the mount stage.
    • C、The CDB must be in the nomount stage.
    • D、Alt existing PDBs must be closed.

    正确答案:A

  • 第7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8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9题：

    多选题
    Your multitenant container database has three pluggable databases (PDBs): PDB1, PDB2, and PDB3.Which two RMAN commands may be; used to back up only the PDB1 pluggable database?（）
    A

    BACKUP PLUGGABLE DATABASE PDB1 while connected to the root container

    B

    BACKUP PLUGGABLE DATABASE PDB1 while connected to the PDB1 container

    C

    BACKUP DATABASE while connected to the PDB1 container

    D

    BACKUP DATABASE while connected to the boot container

    E

    BACKUP PLUGGABLE database PDB1 while connected to PDB2


    正确答案： E,C
    解析： 暂无解析

  • 第10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11题：

    单选题
    In your multitenant container database (CDB) with two pluggable database (PDBs). You want to create a new PDB by using SQL Developer. Which statement is true?（）
    A

    The CDB must be open.

    B

    The CDB must be in the mount stage.

    C

    The CDB must be in the nomount stage.

    D

    Alt existing PDBs must be closed.


    正确答案： C
    解析： 暂无解析

  • 第12题：

    单选题
    In your multitenant container database (CDB) containing pluggable databases (PDB), users complain about performance degradation. How does real-time Automatic database Diagnostic Monitor (ADDM) check performance degradation and provide solutions?（）
    A

    It collects data from SGA and compares it with a preserved snapshot.

    B

    It collects data from SGA, analyzes it, and provides a report.

    C

    It collects data from SGA and compares it with the latest snapshot.

    D

    It collects data from both SGA and PGA, analyzes it, and provides a report


    正确答案： B
    解析： 暂无解析

  • 第13题：

    In your multitenant container database (CDB) containing pluggable databases (PDB), users complain about performance degradation. How does real-time Automatic database Diagnostic Monitor (ADDM) check performance degradation and provide solutions?（）

    • A、It collects data from SGA and compares it with a preserved snapshot.
    • B、It collects data from SGA, analyzes it, and provides a report.
    • C、It collects data from SGA and compares it with the latest snapshot.
    • D、It collects data from both SGA and PGA, analyzes it, and provides a report

    正确答案:B

  • 第14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15题：

    Which two statements are true concerning the Resource Manager plans for individual pluggabledatabases (PDB plans) in a multitenant container database (CDB)?（）

    • A、If no PDB plan is enabled for a pluggable database, then all sessions for that PDB are treated to an equal degree of the resource share of that pdb.
    • B、In a PDB plan, subplans may be used with up to eight consumer groups.
    • C、If a PDB plan is enabled for a pluggable database, then resources are allocated to consumer groups across all PDBs in the cdb.
    • D、If no PDB plan is enabled for a pluggable database, then the PDB share in the CDB plan is dynamically calculated.
    • E、If a PDB plan is enabled for a pluggable database, then resources are allocated to consumer groups based on the shares provided to the PDB in the CDB plan and the shares provided to the consumer groups in the PDB plan.

    正确答案:A,B,C,D,E

  • 第16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 advisor
    • B、by using the Automatic Workload Repository report
    • C、by running the Automatic Database Diagnostic Monitor （ADDM）
    • D、by using the Automatic Workload Repository Compare Period report
    • E、by analyzing the output of the V$ACTIVE_SESSION_HISTORY view

    正确答案:D

  • 第17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18题：

    单选题
    You work as a database administrator for Supportcenter.cn. 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
    解析： 暂无解析

  • 第19题：

    单选题
    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 advisor

    B

    by using the Automatic Workload Repository report

    C

    by running the Automatic Database Diagnostic Monitor （ADDM）

    D

    by using the Automatic Workload Repository Compare Period report

    E

    by analyzing the output of the V$ACTIVE_SESSION_HISTORY view


    正确答案： E
    解析： 暂无解析

  • 第20题：

    单选题
    Your multitenant container database, CDB1, is running in ARCHIVELOG mode and has two pluggable databases, HR_PDB and ACCOUNTS_PDB. An RMAN backup exists for the database. You issue the command to open ACCOUNTS_PDB and find that the USERDATA.DBF data file for the default permanent tablespace USERDATA belonging to ACCOUNTS_PDB is corrupted. What should you do before executing the commands to restore and recover the data file in ACCOUNTS_PDB?（）
    A

    Place CDB1 in the mount stage and then the USERDATA tablespace offline in ACCOUNTS_PDb.

    B

    Place CDB1 in the mount stage and issue the ALTER PLUGGABLE DATABASE accounts_pdb CLOSE IMMEDIATE command.

    C

    Issue the ALTER PLUGGABLE DATABASE accounts_pdb RESTRICTED command.

    D

    Take the USERDATA tablespace offline in ACCOUNTS_PDb.


    正确答案： B
    解析： 暂无解析

  • 第21题：

    单选题
    Your multitenant container database (CDB) contains a pluggable database, HR_PDB. The default permanent tablespace in HR_PDB is USERDATA. The container database (CDB) is open and you connect RMAN. You want to issue the following RMAN command: RMAN > BACKUP TABLESPACE hr_pdb:userdata; Which task should you perform before issuing the command?（）
    A

    Place the root container in ARHCHIVELOG mode.

    B

    Take the user data tablespace offline.

    C

    Place the root container in the nomount stage.

    D

    Ensure that HR_PDB is open.


    正确答案： C
    解析： 暂无解析

  • 第22题：

    单选题
    Your multitenant container database (CDB) is running in ARCHIVELOG mode. You connect to the CDB RMAN. Examine the following command and its output: You execute the following command: RMAN > BACKUP DATABASE PLUS ARCHIVELOG; Which data files will be backed up?（）
    A

    Data files that belong to only the root container

    B

    Data files that belong to the root container and all the pluggable databases (PDBs)

    C

    Data files that belong to only the root container and PDB$SEED

    D

    Data files that belong to the root container and all the PDBs excluding PDB$SEED


    正确答案： D
    解析： 暂无解析

  • 第23题：

    单选题
    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： E
    解析： 暂无解析

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