100% Accurate Answers! Apr-2026 1Z0-083 Actual Real Exam Questions
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Oracle 1Z1-083 certification exam is a must-have for professionals who want to advance their careers in the field of database administration. It covers a range of topics including database backup and recovery, performance tuning, and troubleshooting. These are essential skills required by database administrators to maintain the integrity and security of the database.
NEW QUESTION # 34
Which two are true about creating pluggable databases (PDBs) in Oracle 19c and later releases?
- A. APDB snapshot can be a full copy of a source PDB.
- B. A snapshot copy PDB can be a full copy of a source PDB
- C. A PDB snapshot depends on an existing storage snapshot of the source PDB.
- D. A snapshot copy PDB does not depend on an existing storage snapshot of the source PDB.
- E. A PDB snapshot can be a sparse copy of a source PDB
Answer: A,E
NEW QUESTION # 35
Which three are true in Oracle 19c and later releases? (Choose three.)
- A. All the Oracle-supplied accounts are Schema Only accounts.
- B. If the password file location changes, then the new location is used automatically by the Oracle Server.
- C. Unified Auditing can be configured to audit only events that are issued directly by an audited user.
- 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. Privilege Analysis is included in Oracle Enterprise Edition and no longer requires Database Vault.
Answer: A,D,F
Explanation:
Reference:
https://mandysandhu.com/2018/04/30/oracle-database-18c-schema-only-accounts/
NEW QUESTION # 36
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?
- A. Data file 24 must be recovered while the CDB is opened.
- B. Data file 24 must be recovered while PDB2 is closed.
- C. Data file 24 can be recovered while CDB$ROOTand PDB$SEED are opened.
- D. Data file 24 can be recovered while PDB2 is opened.
- E. Data file 24 cannot be recovered while the CDB is opened.
Answer: A,D
NEW QUESTION # 37
Which two are true about OS groups and users for Oracle Grid Infrastructure and the Oracle Relational Database Management System (RDBMS)? (Choose two.)
- A. The primary group for the Oracle Grid Infrastructure and Oracle Database owners must be the Oracle Inventory group.
- B. By default, members of the OSASM group can access Automatic Storage Management and RDBMS instances.
- C. The same OSDBA group must be used for Automatic Storage Management and the Oracle Database.
- D. The Oracle Grid Infrastructure owner must have OSOPER, OSBACKUPDBA, and OSKMDBA as secondary groups.
- E. The Oracle Grid Infrastructure installation must be owned by the grid user.
- F. The Oracle Grid Infrastructure owner owns Oracle Restart and Oracle Automatic Storage Management binaries.
Answer: A,F
NEW QUESTION # 38
Which three actions are mandatory post database upgrade?
- A. Run OPatch commands from the new Oracle home.
- B. Updating client scripts with the new Oracle home.
- C. Resetting passwords to enforce case-sensitivity.
- D. Upgrading user tables that depend on Oracle-maintained abstract data types.
- E. Migration to unified auditing.
- F. Setting threshold values for tablespace alerts.
Answer: A,B,D
NEW QUESTION # 39
Choose three. Which three actions are mandatory post database upgrade?
- A. Run OPatch commands from the new Oracle home.
- B. Updating client scripts with the new Oracle home.
- C. Resetting passwords to enforce case-sensitivity.
- D. Upgrading user tables that depend on Oracle-maintained abstract data types.
- E. Migration to unified auditing.
- F. Setting threshold values for tablespace alerts.
Answer: A,B,D
NEW QUESTION # 40
Which two are true about Oracle Optimizer Statistics, their use, and their collection? (Choose two.)
- A. The number of table rows is considered when evaluating the cost of accessing a table using an index.
- B. The Statistics Advisor can help recommend the best way to gather statistics.
- C. Statistics collected using DBMS_STATS always yield the best optimizer result.
- D. The Statistics Advisor generates actions for all recommendations.
- E. Index balanced B*Tree height is considered when evaluating the cost of using an index.
Answer: B,C
NEW QUESTION # 41
Your sales_root application container has two application PDBs.
The sales_app application has a common table, FIN.REVENUE, in the two PDBs.
Examine this query and its output:
Which two are true?
- A. The revenue table partitions are not pruned across the PDBs automatically.
- B. The containers clause cannot be used in queries on the revenue table.
- C. A container map exists for the revenue table, but Is not enabled.
- D. The maptable table defines a logical partition key on a commonly used column for the revenue table.
- E. The maptable table is a metadata-linked table.
- F. The revenue table must be a list-partitioned table.
Answer: C,E
NEW QUESTION # 42
Which three are true about Transparent Data Encryption (TDE)?
- A. It replaces secure application roles.
- B. It can encrypt data at the column level.
- C. It uses a single master key for a database.
- D. Master encryption keys are managed by Oracle Database Vault.
- E. It encrypts only data on the client.
- F. It stores the current and all past master keys in the keystore.
Answer: B,D,F
NEW QUESTION # 43
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. PDB1 and PDB2 are in READ ONLY state.
- B. CDB$ROOT is in MOUNT state.
- C. PDB1 and PDB2 are in MOUNT state.
- D. PDB$SEED is in READ ONLY state.
- E. Redo logs are opened.
Answer: D,E
NEW QUESTION # 44
Examine this configuration:
To recover from this critical failure, you execute these commands:
What will be the outcome?
A)
B)
C)
D)
E)
- A. Option C
- B. Option D
- C. Option E
- D. Option B
- E. Option A
Answer: E
NEW QUESTION # 45
Examine this configuration:
1. CDB1 is a container database.
2. PDB1 and PDB2 are pluggable databases in CDB1.
3. PDB1 and PDB2 are open in read write mode.
You execute these commands successfully:
Which two are true?
- A. CDB1 is shut down.
- B. PDB1 is closed.
- C. Uncommitted transactions in CDB1 and pdbi have been rolled back.
- D. CDB1 is in mount state
- E. Uncommitted transactions in PDB1 have been rolled back.
Answer: C,D
NEW QUESTION # 46
The USERS tablespace consists of data files 3 and 4 and must always be online in read/write mode.
Which two are true about using RMAN to perform an open database back up of this tablespace?
(Choose two.)
- A. Backups must be contained in backup sets.
- B. Backups must be done incrementally.
- C. Backups can be taken only if the database is in ARCHIVELOG mode.
- D. Only consistent backups can be created.
- E. The database must be registered in an RMAN catalog.
- F. Backups can be done incrementally.
Answer: C,F
Explanation:
A - FALSE. It CAN be done incrementally, not MUST
B - FALSE. They CAN be contained in backup sets, not MUST
C - TRUE. By definition, you can only take online backups in ARCHIVELOG mode D - TRUE. Yes, they CAN be done incrementally. They don't have to be.
E - FALSE. You CAN register in an RMAN catalog, you don't have to
F - FALSE. An online backup is INCONSISTENT.
NEW QUESTION # 47
In your Database, the TBS PERCENT USED parameter is set to 60 and the TBS PERCENT FREE parameter is set to 20. Which two storage-tiering actions might be automated when using information Lifecycle Management (ILM) to automate data movement?
- A. The movement of all segments to a target tablespace with a higher degree of compression, on a different storage tier, when the source tablespace exceeds TBS PERCENT USED
- B. Settingthetargettablespacetoread-only
- C. Setting the target tablespace offline
- D. The movement of some segments to a target tablespace with a higher degree of compression, on a different storage tier, when the source tablespace exceeds TBS PERCENT USED
- E. The movement of some blocks to a target tablespace with a lower degree of compression, on a different storage tier, when the source tablespace exceeds TBS PERCENT USED Correct
Answer: B,D
NEW QUESTION # 48
In which two situations can you use Database Upgrade Assistant? (Choose two.)
- A. when a character set conversion is required during the upgrade
- B. when multiple pluggable databases in a container database have to be upgraded in a specific sequence
- C. when the hardware platform needs to be changed as part of the upgrade
- D. when the operating system (OS) needs to be changed as part of the upgrade
- E. when the target and source database are on the same platform
Answer: B,E
NEW QUESTION # 49
Which two are prerequisites for performing Flashback Transaction?
- A. A supplemental log must be enabled for the primary key.
- B. The EXECUTE privilege must be granted to a user on the DBMS_FLASHBACK package.
- C. Undo retention guarantee must be configured for the database.
- D. Fast Recovery Area must be enabled for the database
- E. A supplemental log must be enabled for the primary key.
Answer: B,E
NEW QUESTION # 50
Examine this command:
$ rhpctl move database -sourcehome Oracle_home_path -destinationhome Oracle_home_path For which two purposes can you use this command? (Choose two.)
- A. to switch back to the previous Oracle home as part of a rollback operation
- B. to switch the Oracle Database home when using a centralized Rapid Home Provisioning server
- C. to switch to a patched Oracle Database home
- D. to switch to a read-only Oracle home
- E. to switch an existing Oracle Database home to a newer release of Oracle software on the same server
Answer: A,C
Explanation:
You can use rhpctl move gihome command with the same syntax to switch from the current Oracle Grid Infrastructure home to a patched home. The rhpctl command enables you to switch from your current Oracle Grid Infrastructure or Oracle Database home to patched Oracle home so that you can provision the new Oracle home as gold image. You can also use the rhpctl command to switch back to the old Oracle home, if you want to roll back the operation.
Reference:
https://docs.oracle.com/en/database/oracle/oracle-database/18/cwadd/rapid-home- provisioning.html#GUID-856C7378-2510-4B3E-8BE1-B4D79DF4FE8B
NEW QUESTION # 51
Examine this configuration:
28.CDB1is a container database.
29.COMMON_USER_PREFIXis set to an empty string.
30.PDB1is a pluggable database in CDB1.
31.APP1_ROOTis an application container in CDB1.
32.APP1_PDB1is an application PDB in APP1_ROOT.
You execute these commands:
$ sqlplus sys/oracle@localhost:1521/cdb1 as sysdba
SQL> CREATE ROLE role1 CONTAINER=CURRENT;
What is true?
- A. ROLE1 will be created only in CDB$ROOT and APP1_ROOT.
- B. ROLE1 will be created only in CDB$ROOT.
- C. It will return an error because creation of a local role is not allowed in CDB$ROOT.
- D. It will return an error because common roles must start with C##.
- E. ROLE1 will be created in CDB$ROOT, PDB1, APP1_ROOT, and APP1_PDB1.
Answer: C
Explanation:
SQL> create role testrole container=current;
create role testrole container=current
* ERROR at line 1:
ORA-65049: Creation of local user or role is not allowed in this container.
NEW QUESTION # 52
Which three methods can be used for heap table data migration after upgrading a database? (Choose three.)
- A. using SQL Developer
- B. using Database Replay
- C. using Database Upgrade Assistant
- D. using operating system file copy utilities
- E. using Oracle Data Pump
- F. using the CREATE TABLE AS SELECT SQL statement
Answer: C,E,F
Explanation:
Explanation
https://www.oracle.com/a/tech/docs/twp-upgrade-oracle-database-19c.pdf
NEW QUESTION # 53
Which two are true about server-generated alerts? (Choose two.)
- A. Stateless alerts are automatically cleared.
- B. Stateless alerts can be cleared manually.
- C. Stateful alerts are purged automatically from the alert history.
- D. Stateful alerts must be created by a DBA after resolving the problem.
- E. Stateless alerts can be purged manually from the alert history.
Answer: B,E
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.
Reference:
https://jameshuangsj.wordpress.com/2019/12/01/clears-stateless-alerts-in-oem-by-using-emcli/
NEW QUESTION # 54
The HR_ROOT application container must support the execution of a query on a table shared by application local PDBs PDB1 and PDB2, and remote PDB PDB3.
Which three are true? (Choose three.)
- A. A database link must exist in the remote CDB referring to the local CDB.
- B. A database link must exist in the local CDB root referring to the remote CDB.
- C. A proxy PDB must exist in the application root in the remote CDB.
- D. PDB3's application root replica must exist in the local CDB.
- E. The HR_ROOT replica must exist in the remote CDB.
- F. A proxy PDB must exist in the application root in the local CDB.
Answer: A,E,F
NEW QUESTION # 55
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Oracle 1Z1-083 certification exam covers a wide range of topics, including database architecture, backup and recovery, performance tuning, security, and more. 1Z0-083 exam consists of 84 multiple-choice questions, and you have 105 minutes to complete it. The passing score for 1Z0-083 exam is 64%, and you can take it at any Pearson VUE testing center worldwide.
Actual Questions Answers Pass With Real 1Z0-083 Exam Dumps: https://pass4sure.dumps4pdf.com/1Z0-083-valid-braindumps.html