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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
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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 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” 相关考题
考题
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 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
考题
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 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
考题
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.
考题
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.
考题
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.
考题
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
考题
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 AdvisorsB、Segment AdvisorsC、SQL Tuning and Access AdvisorsD、Automated Workload Repository （AWR）E、Automatic Database Diagnostic Monitor （ADDM）
考题
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 AdvisorB、 Segment AdvisorC、 SQL Access AdvisorD、 Automatic Workload Repository （AWR）E、 Automatic Database Diagnostic Monitor （ADDM）
考题
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.
考题
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.
考题
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 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
考题
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
考题
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.
考题
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 AdvisorB、run SQL Tuning Advisor on top SQL statementsC、run the Automatic Workload Repository （AWR） reportD、run the Automatic Database Diagnostic Monitor （ADDM）on top SQL statements
考题
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.
考题
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 AdvisorsB
Segment AdvisorsC
SQL Tuning and Access AdvisorsD
Automated Workload Repository （AWR）E
Automatic Database Diagnostic Monitor （ADDM）
考题
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 AdvisorB
run SQL Tuning Advisor on top SQL statementsC
run the Automatic Workload Repository （AWR） reportD
run the Automatic Database Diagnostic Monitor （ADDM）on top SQL statements
考题
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 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
考题
多选题Which two statements are true about the Automatic Database Diagnostic Monitor （ADDM）（）AThe ADDM requires at least four AWR snapshots for analysis.BThe ADDM runs after each AWR snapshot is collected automatically by MMON.CThe results of the ADDM analysis are stored in the Automatic Workload Repository （AWR）.DThe ADDM analysis provides only diagnostic information but does not provide recommendations.EThe ADDM calls other advisors if required， but does not provide recommendations about the advisors.
考题
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.
考题
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?（）ABACKUP PLUGGABLE DATABASE PDB1 while connected to the root containerBBACKUP PLUGGABLE DATABASE PDB1 while connected to the PDB1 containerCBACKUP DATABASE while connected to the PDB1 containerDBACKUP DATABASE while connected to the boot containerEBACKUP PLUGGABLE database PDB1 while connected to PDB2
考题
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.
考题
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 AdvisorB
Segment AdvisorC
SQL Access AdvisorD
Automatic Workload Repository （AWR）E
Automatic Database Diagnostic Monitor （ADDM）
考题
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 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
考题
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.
考题
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.
考题
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
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