Practice Examples and Dumps & Tips for 2024 Latest 1Z0-083 Valid Tests Dumps
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Oracle 1Z0-083 exam covers a wide range of topics, including managing database storage structures, managing users and security, managing database performance, managing database backups and recovery, and managing database upgrades and patches. To prepare for the exam, candidates can take advantage of Oracle's official training courses, study guides, and practice exams.
NEW QUESTION # 130
Choose two. Which two are true about reclaiming space used by Flashback logs in Oracle Database 19c and later releases?
- A. Space might be reclaimed proactively before space pressure occurs.
- B. Space is always reclaimed automatically when the retention period for Flashback logs is lowered.
- C. Space might be reclaimed automatically when the retention period for Flashback logs is lowered.
- D. Space is only reclaimed when there is space pressure in the Fast Recovery Area (FRA).
- E. Space is always reclaimed proactively before space pressure occurs.
Answer: A,D
NEW QUESTION # 131
Which three are true about Database Point-in-Time Recovery? (Choose three.)
- A. Database Point-in-Time Recovery is performed by the Managed Recovery Process (MRP)
- B. The database must be in MOUNT state when performing Database Point-in-Time Recovery.
- C. The target point for the recovery must be specified as a stime or System Change Number (SCN).
- D. The database must be open RESETLOGS after Database Point-in-Time Recovery.
- E. The database must have FLASHBACK DATABASE ON to perform Database Point-in-Time Recovery.
- F. The Database must be in ARCHIVELOG mode.
Answer: B,D,F
Explanation:
Archivelog mode and mount state are needed (B, and D)
After the restore you need to open with reset logs (F)
E is discarted because sequence number also is valid
https://docs.oracle.com/cd/B19306_01/backup.102/b14192/flashptr006.htm#:~:text=Database%2
0point%2Din%2Dtime%20recovery%20(DBPITR)%20restores%20the,forward%20to%20the%20t arget%20time.
NEW QUESTION # 132
A redaction policy was added to the SALcolumn of the SCOTT.EMPtable:
All users have their default set of system privileges.
For which three situations will data not be redacted? (Choose three.)
- A. SCOTT sessions, only if the MGR role is granted to SCOTT
- B. SYSTEM sessions, regardless of the roles that are set in the session
- C. SYS sessions, regardless of the roles that are set in the session
- D. SCOTT sessions, because he is the owner of the table
- E. SCOTT sessions, only if the MGR role is set in the session
- F. SYSTEM session, only if the MGR role is set in the session
Answer: A,B,C
NEW QUESTION # 133
Which two are true about the Oracle dataabse methodology? (Choose two.)
- A. Tuning activities should stop once agreed service levels for performance have been met.
- B. The Oracle Database time model should be used to find the database and instance areas most in need of tuning.
- C. Tuning activities should stop once the user is satisfied with performance.
- D. SQL statements should always be tuned before tuning any file systems.
- E. The database instance memory should always be tuned before tuning any file systems.
- F. The alert log should be used to find the database and instance areas most in need of tuning.
Answer: A,F
Explanation:
Reference:
https://flylib.com/books/en/4.322.1.9/1/
NEW QUESTION # 134
A container database called CDB1is OMF-enabled.
PDB_FILE_NAME_CONVERTis not configured in CDB1.
PDB1was unplugged from CDB1earlier in the week.
Examine this command, which will be executed in CDB1:
CREATE PLUGGABLE DATABASE pdb1
USING '/u01/app/oracle/oradata/pdb1.xml'
SOURCE_FILE_NAME_CONVERT
('/u01/app/oracle/oradata/', '/u02/app/oracle/oradata/');
Which two are true? (Choose two.)
- A. /u01/app/oracle/oradata/pdb1.xmldoes not contain the current locations of data files for PDB1.
- B. PDB1 must be dropped from CDB1.
- C. PDB1 data files already exist in the correct location.
- D. PDB_FILE_NAME_CONVERTmust be set before executing the command.
- E. DBMS_PDB.CHECK_PLUG_COMPATIBILITYmust be run in CDB1before executing the command.
Answer: A,D
Explanation:
Explanation/Reference: http://anjaniappsdba.blogspot.com/2016/09/oracle-database-12102c-hot-cloning-of.html
NEW QUESTION # 135
Examine this command:
$ rhpctl move database -sourcehorae Oracle_horne_path -destinationhome Oracle_home_path For which two purposes can you use this command?
- A. to switch to a read-only Oracle home
- B. to switch an existing Oracle Database home to a newer release of Oracle software on the same server
- C. to switch back to the previous Oracle home as part of a rollback operation
- D. to switch to a patched Oracle Database home
- E. to switch the Oracle Database home when using a centralized Rapid Home Provisioning server
Answer: D
NEW QUESTION # 136
Oracle Managed Files (OMF) is enabled in a CDB and this command is successfully executed:
Which three are true?
- A. APP1 can never be unplugged.
- B. An application root PDB is created for APP1.
- C. An application seed PDB Is created for APP1.
- D. Application PDBs that are subsequently created in the APP1 application container will be cloned from APP1$SEED.
- E. A default service Is created for the application root APP1.
- F. Application PDBs that are subsequently created in the APP1 application container will be cloned from PDB$SEED.
Answer: B,D,E
NEW QUESTION # 137
You are managing this configuration:
1. CDB1 is a container database.
2. BDB1 and PDB2 are two pluggable databases in CDB1.
3. user1 .EMP Is a table In PDBI and user2.DEPT is a table in PDB2.
Which two are true?
- A. The inserts on USER1. EMP were committed when the session inserted a row into user2 .dept.
- B. The insert on user2.dept Is a recursive autonomous transaction by the child session and is committed.
- C. The inserts on USER 1 . EMP remain uncommitted when the session connected to pdb2.
- D. The inserts on USER1 . EMP were committed when the session connected to pdb2.
- E. The insert on user2.dept is uncommitted.
- F. The inserts on USER1.EMP were rolled back when the session connected to pdb2.
- G. The insert on user2.dept fails because of the active transaction in the parent container.
Answer: B,E
NEW QUESTION # 138
Which three are true about managing memory components in an Oracle database instance? (Choose three.)
- A. Automatic Memory Management must be used together with locking the System Global Area into physical memory.
- B. With Automatic Shared Memory Management, the database instance can increase the Program Global Area size by reducing the System Global Area size.
- C. Automatically tuned and resized System Global Area components will always revert to their initial sizes after an instance restart.
- D. On Line Transaction Processing systems often use less Program Global Area than Decision Support Systems.
- E. With Automatic Shared Memory Management, the database instance can increase the Large Pool size by reducing the Shared Pool size.
- F. With Automatic Memory Management, the database instance can increase the System Global Area size by reducing the Program Global Area size.
Answer: B,D,E
Explanation:
Explanation/Reference: https://docs.oracle.com/database/121/TGDBA/tune_shared_pool.htm
NEW QUESTION # 139
Which three are true about transporting databases across platforms using Recovery Manager (RMAN) image copies? (Choose three.)
- A. The password file is automatically converted by RMAN.
- B. Databases can be transported between systems with different endian formats.
- C. A new DBID is automatically created for the transported database.
- D. Data files can be converted on the destination system.
- E. Data files can be converted on the source system.
- F. By default, the transported database will use Oracle Managed Files (OMF)
Answer: D,E,F
Explanation:
A: If you do not provide a destination, then the DB_FILE_CREATE_DEST initialization parameter must be set in the target platform. RMAN restores the data files to the location specified by this parameter using new Oracle Managed File (OMF) names.
BC: While creating the cross-platform backup to transport a database, you can convert the database either on the source database or the destination database. The benefit of performing the conversion on the destination database is that the processing overhead of the convert operation is offloaded from the source to the destination database.
D is incorrect. Convert operation will not change DBID explicitly. You will have to use DBNEWID utility to change if you wish to.
E is incorrect. The source platform and destination platform must use the same endian format.
NEW QUESTION # 140
Choose two. Which two restrictions apply when the RMAN BACKUP AS COPY command is used to create a backup?
- A. Binary compression cannot be applied to the backup.
- B. Backups can be written only to media.
- C. Backups can be written only to disk.
- D. Backups can be taken only for data files.
- E. Backups can be written only if checksums are stored for each block.
- F. Backups can be taken only if a fast recovery area is configured.
Answer: A,C
NEW QUESTION # 141
Which are the three steps in the SQL tuning process for Oracle Database environments?
- A. Test the application as a whole using tuned SQL statements.
- B. Tune SQL statements as a group using the SQL Tuning and SQL Access Advisors.
- C. Identify poorly tuned SQL statements using Automatic Database Diagnostic Monitor.
- D. Tune individual SQL statements using the SQL Tuning Advisor.
- E. Test tuned SQL statements one at a time for all statements in the application.
- F. Identify poorly tuned SQL statements using the SQL Tuning Advisor.
Answer: A,C,D
NEW QUESTION # 142
Which two are true about SQL Performance Analyzer (SPA)? (Choose two.)
- A. It offers fine-grained analysis of all the SQL statements in the analysis task as a group.
- B. It provides before and after execution statistics for each SQL statement in the analysis task
- C. It is integrated with the SQL Access Advisor.
- D. It predicts the impact of system changes on SQL workload response time.
- E. SQL statements that were originally run concurrently are run concurrently by SPA.
Answer: B,D
Explanation:
SQL Performance Analyzer measures the impact of system changes both on the overall execution time of the SQL workload and on the response time of every individual SQL statement in the workload. By default, SQL Performance Analyzer uses elapsed time as a metric for comparison.
NEW QUESTION # 143
Choose the best answer. Application PDBs, SALES_APP1 and SALES_APP2, must be created and they must access common tables of the SALES_APP application. Examine these steps: 1. Install the SALES_APP application, including the common tables, in the application root. 2. Install the SALES_APP application in the application root and the common tables in both the CDB root and the application root. 3. Create an application seed.; 4. Install the SALES_APP application in the application seed. 5. Create the SALES_APP1 and SALES_APP2 application PDBs. 6. Sync root. 7. Sync seed. 8. Sync the SALES_APP1 and SALES_APP2 application PDBs with the application the SALES_APP1 and SALES_APP2 application PDBs with the application the application seed with the application root.
Which are the minimum required steps in the correct sequence?
- A. 3,4,1,6,8
- B. 1,3,5,6,7
- C. 1,5,6
- D. 1,3,5,7
- E. 2,5,6
Answer: C
NEW QUESTION # 144
Choose three. Which three actions will add a resource to an Oracle Restart configuration?
- A. creating an Oracle Database service by modifying the SERVICE_NAMES parameter
- B. creating an Oracle Automatic Storage Management (ASM) instance with ASM Configuration Assistant (ASMCA)
- C. creating a disk group using the CREATE DISKGROUP SQL statement
- D. creating a database service using DBMS_SERVICE.CREATE_SERVICE
- E. creating a database service using Oracle Database Configuration Assistant (DBCA)
- F. creating a database using the CREATE DATABASE SQL statement
Answer: B,C,E
NEW QUESTION # 145
Which two are true about the Oracle dataabse methodology? (Choose two.)
- A. Tuning activities should stop once agreed service levels for performance have been met.
- B. The Oracle Database time model should be used to find the database and instance areas most in need of tuning.
- C. Tuning activities should stop once the user is satisfied with performance.
- D. SQL statements should always be tuned before tuning any file systems.
- E. The database instance memory should always be tuned before tuning any file systems.
- F. The alert log should be used to find the database and instance areas most in need of tuning.
Answer: A,F
NEW QUESTION # 146
Which two are true about gathering optimizer statistics? (Choose two.)
- A. Executing DBMS_STATS.GATHER_DATABASE_STATSwhile connected to a PDB opened in read/write mode gathers object statistics for that PDB.
- B. Executing DBMS_STATS.GATHER_DATABASE_STATSwhile connected to CDB$ROOTgathers object statistics in all open PDBs except PDB$SEED.
- C. Executing DBMS_STATS.GATHER_DATABASE_STATS while connected to CDB$ROOT gathers object statistics only in CDB$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 only in CDB$ROOT.
Answer: A,C
Explanation:
https://mikedietrichde.com/2016/10/21/gather-fixed-objects-stats-in-pdbs-as-well/
NEW QUESTION # 147
HR_ROOT is an application container with the HR_APP application installed. No application PDBs and no application seed have yet been created in HR_ROOT. An application PDB, PDB1, must be created so that the HR_APP application's common objects are accessible to it. Which two methods can be used?
- A. Create an application seed, synchronize it with HR_ROOT, and then create the PDB1 application PDB.
- B. Create an application seed, and install HR_APP in it.
- C. Create the PDB1 application PDB and synchronize it with HR_ROOT.
- D. Create the PDB1 application PDB and synchronize it with PDB$SEED.
- E. Create the PDB1 application PDB and install HR_APP in it.
Answer: A,C
NEW QUESTION # 148
You want to transport the UNIVERSITYtablespace from one database to another.
The UNIVERSITYtablespace is currently open read/write.
The source and destination platforms have the same endian format.
Examine this list of steps:
9. Make the UNIVERSITYtablespace read-only on the source system.
10.Export the UNIVERSITYtablespace metadata using EXPDP.
11.Create a cross-platform backup set from the UNIVERSITYtablespace on the source system, using an RMANcommand that includes the DATAPUMPclause.
12.Copy the cross-platform backup sets to the destination system.
13.Copy the Data Pump dump set from the source to the destination system.
14.Restore the cross-platform backup set on the destination system using an RMANcommand that includes the DATAPUMPclause.
15.Import the UNIVERSITYtablespace metadata using IMPDP.
16.Make the UNIVERSITYtablespace read/write on the destination system.
Which are the minimum number of steps required, in the correct order, to transport the UNIVERSITYtablespace?
- A. 3, 4, 6
- B. 1, 2, 3, 4, 5, 6, 7, 8
- C. 1, 3, 4, 6, 8
- D. 2, 3, 4, 5, 6, 7
Answer: C
Explanation:
https://docs.oracle.com/en-us/iaas/Content/Database/Tasks/mig-rman-cross-plat-transp- tablespace.htm
NEW QUESTION # 149
Which three are true about backup, restore, and recovery operations done without using Recovery Manager (RMAN)? (Choose three.)
- A. Backing up a database in ARCHIVELOG mode using O/S utilities requires that the database instance be started and the database be in OPEN state.
- B. Backing up a database in NOARCHIVELOG mode using O/S utilities requires that the database instance be started and the dataabse be in the MOUNT state.
- C. Oracle data file backups, copied using an O/S utility, can be added to the RMAN catalog as IMAGE COPIES.
- D. An Oracle database can be restored from backup files copied using O/S utilities.
- E. Backing up a database in NOARCHIVELOG mode using O/S utilities requires that the database instance be shut down.
- F. Oracle archive log backups, copied using an O/S utility, can be added to the RMAN catalog as a backup set.
- G. Backing up a database in ARCHIVELOG mode using O/S utilities requires that the database instance be started and the database be in MOUNT state.
Answer: C,E,G
NEW QUESTION # 150
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Oracle 1Z1-083 exam has been designed for database administrators who want to specialize in the management of Oracle database environments. Oracle Database Administration II certification exam is ideal for professionals who have already cleared the Oracle Database Administration I exam and are looking to upgrade their skills. Oracle 1Z1-083 certification is recognized worldwide as the gold standard in database management, and it provides a benchmark for professionals to showcase their knowledge and skillset to potential employers.
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