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Exam Topic for Oracle Database Administration II Exam Number: 1Z0-083
The following will be discussed in ORACLE 1Z0-083 exam dumps:
- Install Grid Infrastructure and Oracle Database
- Backup and Duplicate
- Creating CDBs and Regular PDBs
- Using Flashback Technologies
- Manage Application PDBs
- Recovery and Flashback
- Restore and Recovery Concepts
- Backup Strategies and Terminology
- Transporting Data
NEW QUESTION 61
Which two are true about gathering optimizer statistics? (Choose two.)
- A. Executing DBMS_STATS.GATHER_DATABASE_STATSwhile connected to CDB$ROOTgathers object statistics only in CDB$ROOT.
- B. Executing DBMS_STATS.GATHER_DATABASE_STATSwhile connected to a PDB opened in read/write mode gathers object statistics for that PDB.
- C. System statistics can be gathered only while connected to CDB$ROOT.
- D. Executing DBMS_STATS.GATHER_DATABASE_STATSwhile connected to CDB$ROOTgathers object statistics in all open pluggable databases (PDBs)
- E. Executing DBMS_STATS.GATHER_DATABASE_STATSwhile connected to CDB$ROOTgathers object statistics in all open PDBs except PDB$SEED.
Answer: A,D
Explanation:
Explanation/Reference: https://docs.oracle.com/en/database/oracle/oracle-database/20/arpls/DBMS_STATS.html
NEW QUESTION 62
Which two are true about server-generated alerts? (Choose two.)
- A. Stateless alerts can be purged manually from the alert history.
- B. Stateless alerts can be cleared manually.
- C. Stateful alerts must be created by a DBA after resolving the problem.
- D. Stateful alerts are purged automatically from the alert history.
- E. Stateless alerts are automatically cleared.
Answer: A,B
Explanation:
Explanation
Except for the tablespace space usage metric, which is database related, the other metrics are instance related.
Threshold alerts are also referred to as stateful alerts which are automatically cleared when an alert condition clears. Stateful alert appears in DBA_OUTSTANDING_ALERTS and when cleared go to DBA_ALERT_HISTORY. Other server-generated alerts correspond to specific database events such as ORA-* errors, "Snapshot too old" errors, Recovery Area Low on Free Space, Resumable Session Suspended.
These are non threshold based alerts, also referred to as stateless alerts. Stateless alerts go directly to the History table. +++ Most alerts (such as "Out of Space") are cleared automatically when the cause of the problem disappears. However, other alerts (such as generic alert log errors) are sent to you for notification and must be acknowledged by you. After taking the corrective measures, you acknowledge an alert by clearing or purging it. Clearing an alert sends the alert to the Alert History which is accessible from Monitoring sub menu.
Purging an alert removes it from the Alert History.
NEW QUESTION 63
Examine these queries and their output:
After a system crash, an instance restart and an attempted opening of the PDBs result in:
Which two are true? (Choose two.)
- A. Data file 24 cannot be recovered while the CDB is opened.
- B. Data file 24 must be recovered while PDB2 is closed.
- C. Data file 24 must be recovered while the CDB is opened.
- D. Data file 24 can be recovered while PDB2 is opened.
- E. Data file 24 can be recovered while CDB$ROOTand PDB$SEEDare opened.
Answer: A,C
NEW QUESTION 64
Which three are true about Optimizer Statistics Advisor? (Choose three.)
- A. It always analyzes all schemas in the database.
- B. It is part of the DBMS_STATS package.
- C. It is part of the DBMS_ADVISOR package.
- D. It runs automatically every night by default.
- E. It can be run only manually.
- F. It can recommend changes to improve the statistics gathering process.
Answer: B,D,F
Explanation:
Explanation
https://mikedietrichde.com/2017/08/22/oracle-optimizer-statistics-advisor-in-oracle-database-12-2-0-1/
https://www.oracle.com/technetwork/database/bi-datawarehousing/twp-bp-for-stats-gather-19c-5324205.pdf
NEW QUESTION 65
Examine this configuration:
1. CDB1is a container database.
2. PDB1 and PDB2are pluggable databases in CDB1.
3. PDB1 and PDB2are OPENin READ WRITEmode.
You execute these commands successfully:
Which two are true? (Choose two.)
- A. PDB1is closed.
- B. Uncommitted transactions in PDB1have been rolled back.
- C. Uncommitted transactions in CDB1and PDB1have been rolled back.
- D. CDB1is shut down.
- E. CDB1is in MOUNT state
Answer: A,E
NEW QUESTION 66
Examine this configuration:
To recover from this critical failure, you execute these commands:
What will be the outcome?
- A. Option
- B. Option
- C. Option
- D. Option
- E. Option
Answer: B
NEW QUESTION 67
Which two are true about Rapid Home Provisioning of Oracle software? (Choose two.)
- A. It can be used for applications and middleware.
- B. It can be used for both Oracle Database and Oracle Grid Infrastructure, excluding Oracle Restart.
- C. It can be used only for Oracle Grid Infrastructure, including Oracle Restart.
- D. It can be used for both Oracle Database and Oracle Grid Infrastructure, including Oracle Restart.
- E. It can be used only for Oracle Grid Infrastructure, excluding Oracle Restart.
Answer: B,E
Explanation:
Explanation
Reference https://docs.oracle.com/en/database/oracle/oracle-database/12.2/cwadd/rapid-homeprovisioning.
html#GUID-CCEC5960-EDA4-4A3F-9643-0CA308EA49AA
NEW QUESTION 68
Which two are true about a Recovery Manager (RMAN) duplication without a target connection?
- A. RMAN SBT-based backups of the database to be duplicated can be used by the auxiliary instance.
- B. The undo tablespace clause is always required when no connection exists to the recovery catalog and the target database is closed.
- C. RMAN "pushes" the backups of the database to be duplicated over the network to the auxiliary instance.
- D. RMAN disk-based backups of the database to be duplicated can be used by the auxiliary instance.
- E. The undo tablespace clause is always required when no connection exists to the target instance.
Answer: B,D
NEW QUESTION 69
You must transport the university tablespace from one database to another. The university tablespace is currently open read/write. The source and destination platforms have different endian formats. Examine this list of actions:
1. Make the university tablespace read-only on the source system.
2. Export the university tablespace metadata using expdp.
3. Convert the university tablespace data files to the destination platform format using RMANon the source system.
4. Copy the university tablespace data files to the destination system.
5. Copy the Data Pump dump set to the destination system.
6. Convert the university tablespace data files to the destination platform format using RMANon the destination system.
7. Import the university tablespace metadata using impdp.
8. Make the university tablespace read/write on the destination system.
Which are the minimum number of actions required, in the correct order, to transport the university tablespace?
- A. 1, 2, 4, 6, 7, 8
- B. 1, 2, 3, 4, 5, 7, 8
- C. 1, 2, 3, 4, 5, 6, 7, 8
- D. 1, 2, 4, 5, 7, 8
- E. 2. 4. 5. 6. 7
Answer: C
NEW QUESTION 70
You are managing this configuration:
* CDB1 is a container database.
* PDB1 and PDB2 are two pluggable databases in CDB1.
* USER1.EMP is a table in PDB1 and USER2.DEPT is a table in PDB2.
CDB1 user SYS executes these commands after connecting successfully to PDB2:
Which two are true? (Choose two.)
- A. The insert on USER2.DEPT fails because of the active transaction in the parent container.
- B. The inserts on USER1.EMP were committed when the session connected to PDB2.
- C. The inserts on USER1.EMP were rolled back when the session connected to PDB2.
- D. The inserts on USER1.EMP remain uncommitted when the session connected to PDB2.
- E. The insert on USER2.DEPT is uncommitted.
- F. The insert on USER2.DEPT is a recursive autonomous transaction by the child session and is committed.
- G. The inserts on USER1.EMP were committed when the session inserted a row into USER2.DEPT.
Answer: B,E
NEW QUESTION 71
Which three can be done using Oracle Database Configuration Assistant (DBCA) starting from Oracle Database 19c?
- A. relocating a remote container database in silent mode
- B. cloning a remote container database in interactive mode
- C. relocating a remote pluggable database in interactive mode
- D. cloning a remote container database in silent mode
- E. relocating a remote container database in interactive mode
- F. cloning a remote pluggable database in silent mode
- G. relocating a remote pluggable database in silent mode
Answer: A,E,G
NEW QUESTION 72
Which two are true about poorly performing SQL statements and their tuning in Oracle database instances?
(Choose two.)
- A. SQL statements performing many physical I/Os can always have their performance improved by creating indexes.
- B. Poorly performing SQL statements can be tuned automatically by the Oracle server.
- C. SQL statements doing only logical reads never require tuning because they do no physical I/O.
- D. The solution that best optimizes one SQL statement can degrade the performance of others.
- E. SQL statements doing joins always do more physical I/O than single table queries.
Answer: B,C
NEW QUESTION 73
Which two are true about gathering optimizer statistics?
- A. Executing dbms_stats.gather_database_stats while connected to a PDBopened in read/write mode gathers object statistics for that PDB.
- B. Executing dbms_stats.gather_database_stats while connected to cdb$root gathers object statistics in all open PDBs except pdb$seed.
- C. System statistics can be gathered only while connected to cdb$root.
- D. Executing dbms_stats.gather_database_stats while connected to cdb$root gathers object statistics only in cdbSroot.
- E. Executing dbms_stats.gather_database_stats while connected to cdb$root gathers object statistics in all open pluggable databases (PDBs).
Answer: D,E
NEW QUESTION 74
Examine this configuration:
* CDB1 is a container database.
* PDB1 and PDB2 are pluggable databases in CDB1.
You execute these commands successfully:
Which two are true? (Choose two.)
- A. Redo logs are opened.
- B. PDB1 and PDB2 are in READ ONLY state.
- C. PDB1 and PDB2 are in MOUNT state.
- D. PDB$SEED is in READ ONLY state.
- E. CDB$ROOT is in MOUNT state.
Answer: A,D
NEW QUESTION 75
You have configured RMAN SBT channels to write backups to media.
You then take an RMAN backup by using this command:
Which three are true? (Choose three.)
- A. The control file is included in the self-contained archival backup.
- B. The restore point is a label for the system change number (SCN) that will be saved two years after the archival backup was taken.
- C. The SPFILE is included in the self-contaied archival backup.
- D. The restore point is a label for the system change number (SCN) before the archival backup was taken.
- E. The data file backups in the self-contained archive backup are not considered obsolete for two years regardless of the retention policy.
- F. All archive logs created after this backup are kept for two years.
Answer: A,C,F
NEW QUESTION 76
Which two are facets of performance planning that should always be considered or implemented for an Oracle Database environment?
- A. defining primary keys for all tables to speed up all queries
- B. defining foreign keys for all tables to speed up joins
- C. the physical data model
- D. using check constraints to speed up updates
- E. the configuration of storage arrays
Answer: B,C
NEW QUESTION 77
Your container database, CDB1, has an application container, HR_ROOT, with an application PDB, HR_PDB1.
You have the required privilege to clone HR_PDB1 to container database CDB2, which does not contain HR_ROOT.
Which two are always true? (Choose two.)
- A. All transactions in HR_PDB1 of CDB1 must commit before the cloning process starts.
- B. Cloning HR_ROOT automatically clones HR_PDB1.
- C. The HR_PDB1 clone created in CDB2 will be in mount state when cloning ends.
- D. A common user must exist in CDB2 with the CREATE PLUGGABLE DATABASE privilege.
- E. CDB1 and CDB2 must be in shared undo mode.
Answer: B,D
NEW QUESTION 78
Which two are true about an RPM-based Oracle Database installation? (Choose two.)
- A. From Oracle Database 18c, a single RPM can be used to install only Oracle Database Server for a single instance.
- B. It uses a service configuration script to create a single-instance database as part of the installation.
- C. It requires an Unbreakable Linux Network (ULN) subscription.
- D. It includes the Oracle Preinstallation RPM.
- E. It performs a software-only Oracle Database installation.
Answer: C,D
NEW QUESTION 79
Which two are true about Oracle Flashback features?
- A. After a database is restored from flashback logs using the flashback database command, it is sometimes rolled forward using redo logs.
- B. flashback drop can undrop an index when undropping a table.
- C. flashback table can undrop a column.
- D. flashback version query can retrieve redo records from online and archived redo log files.
- E. flashback query can retrieve redo records from online and archived redo log files.
Answer: C,E
NEW QUESTION 80
Which two are true about the Optimizer Statistics Advisor?
- A. It can be run only automatically.
- B. It always analyzes all schemas in the database.
- C. It runs automatically every night by default.
- D. It can be run only manually.
- E. It can recommend changes to improve the statistics gathering process.
Answer: A,E
NEW QUESTION 81
Which three are true about an application container?
- A. An application PDB can belong to multiple application containers.
- B. It can contain multiple applications.
- C. Two application containers can share an application seed PDB.
- D. It must have an application seed PDB.
- E. It must have an application root PDB.
- F. It can contain a single application.
Answer: B,C,F
NEW QUESTION 82
Which three are true about an application container? (Choose three.)
- A. It must have an application root PDB.
- B. An application PDB can belong to multiple application containers.
- C. It must have an application seed PDB.
- D. It can contain multiple applications.
- E. It can contain a single application.
- F. Two application containers can share an application seed PDB.
Answer: A,B,E
NEW QUESTION 83
Which three actions are performed by Database Upgrade Assistant (DBUA)?
- A. It recompiles all stored pl/sql code by using utlrp.sql.
- B. It empties the recycle bin.
- C. It removes the audsys schema and the audit_admin and audit_viewer roles.
- D. It performs prerequisite checks to verify if the Oracle database is ready for upgrade.
- E. It Increases tablespace size, if required, to meet upgrade requirements.
- F. It sets all user tablespaces to "read-only" before starting the upgrade.
Answer: B,C,F
NEW QUESTION 84
Which three are true in Oracle 19c and later releases? (Choose three.)
- A. Unified Auditing can be configured to audit only events that are issued directly by an audited user.
- B. If the password file location changes, then the new location is used automatically by the Oracle Server.
- C. Privilege Analysis is included in Oracle Enterprise Edition and no longer requires Database Vault.
- D. Schema Only accounts can be granted administrator privileges.
- E. Unified Auditing can be configured to audit only events that are issued indirectly by an audited user.
- F. All the Oracle-supplied accounts are Schema Only accounts.
Answer: C,D,F
NEW QUESTION 85
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Understanding functional and technical aspects of Oracle Database Administration II Exam Number: 1Z0-083
The following will be discussed in the ORACLE 1Z0-083 exam dumps:
- Configure RMAN and the Database for Recoverability
- Diagnosing Database Issues
- Employ the best Oracle Database recovery technology for your failure situation
- Configuring and using RMAN - Oracle Database: Backup and Recovery Workshop
- Restore and Recovery Concepts - Oracle Database: Backup and Recovery Workshop
- Configure and using an RMAN recovery catalog
- Duplicate Databases
- Configure your Database to support Flashback
- Detect and repair database and database block corruption
- Duplicating a Database - Oracle Database: Backup and Recovery Workshop
- Using Flashback Technologies - Oracle Database: Backup and Recovery Workshop
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