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NEW QUESTION 96
Which two are true about the Oracle dataabse methodology? (Choose two.)
- A. The alert log should be used to find the database and instance areas most in need of tuning.
- B. The database instance memory should always be tuned before tuning any file systems.
- C. Tuning activities should stop once agreed service levels for performance have been met.
- D. Tuning activities should stop once the user is satisfied with performance.
- E. The Oracle Database time model should be used to find the database and instance areas most in need of tuning.
- F. SQL statements should always be tuned before tuning any file systems.
Answer: A,C
NEW QUESTION 97
A container database (CDB) contains two pluggable databases PDB1 and PDB2.
The LOCAL_UNDO_ENABLEDdatabase property is set to FALSEin the CDB.
Data file 24 of PDB2was deleted and you need to restore and recover it.
The only RMAN backup that exists was created with the BACKUP DATABASEcommand while connected to CDB$ROOT.
Which three are true? (Choose three.)
- A. Data file 24 can be recovered while connected to PDB2.
- B. Data file 24 can be restored only while connected to PDB2.
- C. Data file 24 can be restored only while connected to CDB$ROOT.
- D. Data file 24 can be recovered only while connected to PDB2.
- E. Data file 24 can be restored and recovered while connected to CDB$ROOT.
- F. Data file 24 can be recovered while connected to CDB$ROOT.
Answer: B,E,F
NEW QUESTION 98
Which two are true about flashback features in Oracle Database 19c and later releases? (Choose two.)
- A. Flashback logs are automatically purged when DB_FLASHBACK_RETENTION_TARGET is set lower than the time they have already been retained.
- B. Flashback logs are automatically purged whenever the value of DB_FLASHBACK_RETENTION_TARGET is changed.
- C. Flashback logs are monitored and proactively deleted when beyond the retention period defined in DB_FLASHBACK_RETENTION_TARGET before there is space pressure.
- D. Flashback logs are monitored for being older than the retention period defined in DB_FLASHBACK_RETENTION_TARGET and can be deleted by an administrator written event trigger.
- E. Flashback logs are monitored and proactively deleted when beyond the retention period defined in DB_FLASHBACK_RETENTION_TARGET only after there is space pressure.
Answer: B,E
NEW QUESTION 99
Which two are true about Rapid Home Provisioning (RHP), which has been available since Orcale 18c? (Choose two.)
- A. It can be used to provision applications.
- B. It can be used to provision middleware.
- C. It can be used to patch Grid Infrastructure homes containing Oracle Restart.
- D. It cannot be used to upgrade Oracle Database homes.
- E. It is an Oracle Database service
Answer: B,C
Explanation:
Reference:
https://www.oracle.com/assets/rapid-home-provisioning-2405191.pdf
NEW QUESTION 100
Choose two. Which two are true about unplugging an application container from a container database and plugging it into a different container database?
- A. It requires local UNDO mode in both container databases.
- B. Plugging the application root into a different CDB plugs in all its application PDBs.
- C. Unplugging the application root from a CDB unplugs all its application PDBs.
- D. Application PDBs in the application container must be unplugged before the application root is unplugged.
- E. The application root of an application container should be plugged into the other CDB before its application PDBs are plugged in.
- F. It requires only local UNDO mode in the database where the application container will be unplugged.
Answer: D,E
NEW QUESTION 101
Which four are true about duplicating a database using Recovery Manager (RMAN)? (Choose four.)
- A. A connection to the target database instance is always required.
- B. A subset of the target database can be duplicated.
- C. A connection to the recovery catalog instance is always required.
- D. A connection to an auxiliary instance is always required.
- E. Duplication can be done by having the target database instance push copies to the auxiliary database instance.
- F. Duplication can be done by having the auxiliary database instance pull backup sets from the target database instance.
- G. A new DBID is always created for the duplicated database.
- H. A backup of the target database is always required.
Answer: D,E,F,H
NEW QUESTION 102
A database is configured in ARCHIVELOG mode.
A full RMAN backup exists but no control file backup to trace has been taken. A media failure has occurred.
In which two scenarios is incomplete recovery required? (Choose two.)
- A. after losing a SYSAUX tablespace data file
- B. after losing an UNDO tablespace that is in use
- C. after losing all members of an INACTIVE online redo log group
- D. after losing all copies of the control file
- E. after losing all members of the CURRENT online redo log group
Answer: C,D
NEW QUESTION 103
Which two are true about the Automatic Database Diasnostic Monitor (ADDM)? (Choose two.)
- A. It runs automatically after each AWR snapshot.
- B. A DBA can run it manually.
- C. It analyzes a period of time corresponding to the last day of activity.
- D. Results are written to the alert log.
- E. It analyzes a period of time corresponding to the 12 hours of activity.
Answer: A,D
NEW QUESTION 104
Choose two. Your database is in ARCHIVELOG mode and you plan to use Flashback Database. Which two features or parameters manage space availability in the fast recovery area?
- A. the archived log deletion policy
- B. the DB_CREATE_ONLINE_LOG_DEST_n parameter setting
- C. the DB_RECOVERY_FILE_DEST parameter setting
- D. using guaranteed UNDO retention
- E. the backup optimization policy
- F. the backup retention policy
Answer: A,F
NEW QUESTION 105
Which three are true about Automatic Workload Repository (AWR), Automatic Database Diagnostic Monitor (ADDM), and the Manageability Monitor (MMON) background process? (Choose three.)
- A. By default, MMON creates an AWR snapshot every 30 minutes.
- B. ADDM can recommend extending the buffer cache.
- C. ADDM can recommend shrinking the buffer cache.
- D. ADDM performs its analysis only when a DBA requests it.
- E. AWR snapshots must be deleted when no longer required by ADDM.
- F. By default, AWR snapshots are automatically purged after eight days.
Answer: B,C,F
NEW QUESTION 106
Choose three. Which three are true about post-upgrade activities when upgrading an Oracle database using Database Upgrade Assistant?
- A. The new extended data type capability must be enabled by running the utlrp.sql script
- B. Any Recovery Manager (RMAN) recovery catalog must be upgraded manually.
- C. The Oracle Application Express configuration should be updated after upgrading Oracle Database.
- D. After a manual upgrade, TNSNAMES.ORA entries must be updated to reflect the new ORACLE_HOME.
- E. Time zone files must be upgraded manually using the DBMS_DST PL/SQL package.
Answer: A,B,C
NEW QUESTION 107
Examine the command for creating pluggable database PDB2 in container database CDB2.
Select three options, any one of which is required for it to execute successfully. (Choose three.)
- A. Set only the PDB_FILE_NAME_CONVERTparameter.
- B. Add the FILE_NAME_CONVERTclause to the statement and enable Oracle Managed Files (OMF)
- C. Set the PDB_FILE_NAME_CONVERTparameter and enable OMF.
- D. Add only the CREATE_FILE_DESTclause to the statement.
- E. Enable only OMF.
- F. Add the FILE_NAME_CONVERTclause to the statement and set the PDB_FILE_NAME_CONVERT parameter.
Answer: C,D,E
NEW QUESTION 108
Choose three. Which three are true about a whole database backup?
- A. It can be consistent.
- B. It always includes all data files, the current control file, the server parameter file, and archived redo logs.
- C. It can be created only by using RMAN.
- D. It can consist of either backup sets or image copies. F) It can be inconsistent.
- E. It is the only possible backup type for a database in NOARCHIVELOG mode.
Answer: A,D
NEW QUESTION 109
choose three Which three are true about Transparent Data Encryption (TDE)?
- A. It replaces secure application roles.
- B. It stores the current and all past master keys in the keystore.
- C. Master encryption keys are managed by Oracle Database Vault.
- D. It uses a single master key for a database.
- E. It encrypts only data on the client.
- F. It can encrypt data at the column level.
Answer: B,C,F
NEW QUESTION 110
Choose the best answer. Which statement correctly describes the SQL profiling performed by the SQL Tuning Advisor?
- A. It is a set of recommendations by the optimizer to restructure a SQL statement to avoid suboptimal execution plans.
- B. It is auxiliary information collected by the optimizer for a SQL statement to eliminate estimation error.
- C. It is a set of recommendations by the optimizer to create new indexes.
- D. It is a set of recommendations by the optimizer to change the access methods used.
- E. It is auxiliary information collected by the optimizer for a SQL statement to help use better joins orders.
Answer: D
NEW QUESTION 111
Which two are true about gathering optimizer statistics? (Choose two.)
- A. Executing DBMS_STATS.GATHER_DATABASE_STATS while connected to CDB$ROOT gathers object statistics in all open pluggable databases (PDBs)
- B. Executing DBMS_STATS.GATHER_DATABASE_STATS while connected to a PDB opened in read/write mode gathers object statistics for that PDB.
- C. Executing DBMS_STATS.GATHER_DATABASE_STATS while connected to CDB$ROOT gathers object statistics in all open PDBs except PDB$SEED.
- D. Executing DBMS_STATS.GATHER_DATABASE_STATS while connected to CDB$ROOT gathers object statistics only in CDB$ROOT.
- E. System statistics can be gathered only while connected to CDB$ROOT.
Answer: A,B
Explanation:
https://mikedietrichde.com/2016/10/21/gather-fixed-objects-stats-in-pdbs-as-well/#:~:text=Yes%2C%20you'll%20have%20to,independently%20from%20the%20CDB%24ROOT.&text=Oracle%20Database%20automatically%20gathers%20fixed,Automatic%20Optimizer%20Statistics%20Collection%E2%80%9C) .
Reference:
https://docs.oracle.com/en/database/oracle/oracle-database/20/arpls/DBMS_STATS.html
NEW QUESTION 112
Which two are true about a Recovery Manager (RMAN) duplication without a target connection?
- A. The undo tablespace clause is always required when no connection exists to the recovery catalog and the target database is closed.
- B. RMAN disk-based backups of the database to be duplicated can be used by the auxiliary instance.
- C. RMAN SBT-based backups of the database to be duplicated can be used by the auxiliary instance.
- D. RMAN "pushes" the backups of the database to be duplicated over the network to the auxiliary instance.
- E. The undo tablespace clause is always required when no connection exists to the target instance.
Answer: A,B
NEW QUESTION 113
Examine this configuration:
1. CDB1 is a container database.
2. PDB1 and PDB2 are pluggable databases in CDB1.
You execute these commands successfully:
Which two are true?
- A. Redo logs are opened.
- B. CDB$ROOT is in mount state.
- C. PDB$SEED is in read only state.
- D. PDB1 and PDB2 are in read only state.
- E. PDB1 and PDB2 are in mount state.
Answer: A,D
NEW QUESTION 114
Choose three. In which three situations can you use threshold server-generated alerts to help diagnose and fix problems?
- A. when the total number of locked user account exceeds a specific value
- B. when free space in a locally managed tablespace falls below a specified percentage
- C. when a resumable statement is suspended
- D. when free space in a dictionary managed tablespace falls below a specified percentage
- E. when the total number of logons exceeds a specific value
- F. when the number of logons per second exceeds a specific value
Answer: A,B,F
NEW QUESTION 115
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