1Z0-083 Practice Dumps - Verified By ActualPDF Updated 283 Questions
Updated 1Z0-083 Exam Dumps - PDF Questions and Testing Engine
To prepare for the Oracle 1Z0-083 exam, candidates are recommended to have extensive hands-on experience in managing Oracle databases. They are also advised to undergo formal training from Oracle or other authorized training providers to gain a comprehensive understanding of the exam topics. With the right preparation, candidates can pass the Oracle 1Z0-083 exam and become certified Oracle database administrators, which can greatly enhance their career prospects in the IT industry.
NEW QUESTION # 100
Which two statements are true about the Oracle Database server architecture?
- A. A connection represents the state of a user's login to an instance.
- B. The entire data dictionary is always cached in the large pool.
- C. An Oracle Database server process represents the state of a user's login to an instance.
- D. Each server process has its own User Global Area (UGA).
- E. An Oracle Database server process is always associated with a session.
Answer: A,D
NEW QUESTION # 101
Choose three. Which are three of the steps taken by Database Configuration Assistant (DBCA) to clone a remote pluggable database (PDB) starting from Oracle 19c?
- A. creating a database link from CDB$ROOT in the local database to CDB$ROOT in the remote system that is to be cloned
- B. creating a database link from CDB$ROOT in the remote database to be cloned to CDB$ROOT in the local database
- C. automatically dropping the database link to the remote database if it already exists
- D. creating a database link from CDB$ROOT in the remote database to the PDB in the local database
- E. opening the cloned PDB
- F. creating a new empty PDB in the local database from PDB$SEED
- G. creating a database link from CDB$ROOT in the local database to the PDB in the remote system that is to be cloned
Answer: A,C,D
NEW QUESTION # 102
Which four are true about duplicating a database using Recovery Manager (RMAN)? (Choose four.)
- A. Duplication can be done by having the target database instance push copies to the auxiliary database instance.
- B. A connection to the target database instance is always required.
- C. A subset of the target database can be duplicated.
- D. A new DBID is always created for the duplicated database.
- E. A connection to the recovery catalog instance is always required.
- F. A connection to an auxiliary instance is always required.
- G. A backup of the target database is always required.
- H. Duplication can be done by having the auxiliary database instance pull backup sets from the target database instance.
Answer: A,C,F,H
Explanation:
Explanation
A duplicate database is a copy of your target database. With the FOR STANDBY clause, it keeps the same unique database identifier(DBID); If FOR STANDBY not specified it creates a new DBID. The duplicate database can include the same content or only a subset from the source database. It can be in the same host or a separate host. The principal work of the duplication is performed by the auxiliary channels.These channels correspond to a server session on the auxiliary instance on the destination host for backup based duplication.
For active database duplication the target channels perform the work of pushing data file copies to the auxiliary instance (if number of allocated target channels is greater than the number of allocated auxiliary channels).
NEW QUESTION # 103
Unified auditing is enabled in your database. The HR_ADMIN and OE_ADMIN roles exist and are granted system privileges. You execute the command: SQL>CREATE AUDIT POLICY table_aud PRIVILEGES CREATE ANY TABLE, DROP ANY TABLE ROLES hr_admin,oe_admin; Which statement is true?
- A. It fails because the command does notspecify when the unified audit policy should be enforced.
- B. It succeeds and needs to be enabled to capture all SQL statements that require either the specified privileges or any privilege granted to the HR_ADMIN or OE_ADMIN role.
- C. It succeeds and starts capturing only successful SQL statements for all users who have either the specified privileges or roles granted to them.
- D. It fails because system privileges cannot be granted with roles in the same audit policy.
Answer: B
NEW QUESTION # 104
Which three are true about opatchauto? (Choose three.)
- A. Patches are applied via opatchauto.
- B. It requires the Oracle Grid Infrastructure and Oracle Database instances to be shut down before being invoked.
- C. Users must always input patch plans to opatchauto.
- D. It must be invoked by a user with root user privileges.
- E. It performs a shutdown and then a restart of all processes in both Oracle Grid Infrastructure and Oracle Database home during the patching process.
- F. It applies patches in nonrolling mode by default.
- G. It is used to apply interim patches to Oracle Grid Infrastructure and Oracle Database home combinations.
Answer: A,D,E
NEW QUESTION # 105
A database is configured in archivelog mode.
Full RMAN backups are taken daily and no backup to trace has been taken of the control file.
A media failure has occurred.
In which two scenarios is complete recovery possible?
- A. after losing an archived log from after the most recent backup
- B. after losing all copies of the control file
- C. when any archived log from, before, or after the most recent backup is corrupt
- D. after losing an archived log from before the most recent backup
- E. after losing the system tablespace
Answer: D
NEW QUESTION # 106
For which two requirements can you use the user_tablespaces clause with the create pluggable database command?
- A. to include specific user tablespaces only when relocating a PDB
- B. to specify a default tablespace in a PDB cloned from another PDB in the same CDB
- C. to exclude all tablespaces except system, sysaux, and temp when plugging in a PDB
- D. to specify the list of user tablespaces to include when moving a non-CDB to a PDB
- E. to exclude a temp tablespace when plugging in a PDB
- F. to specify the list of tablespaces to include when creating a PDB from the CDB seed
Answer: A,D
NEW QUESTION # 107
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 can be recovered while PDB2 is opened.
- C. Data file 24 can be recovered while CDB$ROOT and PDB$SEED are opened.
- D. Data file 24 must be recovered while the CDB is opened.
- E. Data file 24 must be recovered while PDB2 is closed.
Answer: B,C
Explanation:
Datafile 24 belongs to PDB1.
A). It can be recovered while CDB while PDB2 is opened, as it belongs to PDB1.
C). the datafile belongs to PDB1 and CAN be recovered while CDB is opened or in mount state.
NEW QUESTION # 108
Which four are true about performance-related Oracle tools?
- A. The Active Session History (ASH) report is based on wait event samples.
- B. Database Replay always uses one replay client for all the original database sessions.
- C. Database Replay always uses one replay client for each original database session.
- D. The Automatic Database Diagnostic Monitor (ADDM) Compare Period report can compare two non-consecutive periods.
- E. SQL Performance Analyzer can suggest schema changes.
- F. The Automatic Database Diagnostic Monitor (ADDM) Compare Period report can compare two consecutive periods.
- G. SQL Performance Analyzer can identify regressed SQL statements.
Answer: D,E,F,G
NEW QUESTION # 109
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, AWR snapshots are automatically purged after eight days.
- B. By default, MMON creates an AWR snapshot every 30 minutes.
- 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. ADDM can recommend extending the buffer cache.
Answer: A,C,F
Explanation:
AWR Snapshot's default interval is 1 hour and retention is 8 days. It means All AWR statistics are collected every 1 hour and they are kept 8 days by default.
NEW QUESTION # 110
Which two are true about an RPM-based Oracle Database installation? (Choose two.)
- A. It requires an Unbreakable Linux Network (ULN) subscription.
- B. From Oracle Database 18c, a single RPM can be used to install only Oracle Database Server for a single instance.
- C. It includes the Oracle Preinstallation RPM.
- D. It uses a service configuration script to create a single-instance database as part of the installation.
- E. It performs a software-only Oracle Database installation.
Answer: D,E
Explanation:
https://docs.oracle.com/en/database/oracle/oracle-database/18/ladbi/running-rpm-packages-to- install-oracle-database.html#GUID-BB7C11E3-D385-4A2F-9EAF-75F4F0AACF02
NEW QUESTION # 111
You issued this command:
RMAN> BACKUP RECOVERY FILES;
Which two are true? (Choose two.)
- A. All Oracle recovery files not in the current FRA that have not been backed up already, are backed up.
- B. All Oracle recovery files in the current FRA that have not been backed up already, are backed up.
- C. All Oracle recovery files in the current fast recovery area (FRA) are backed up.
- D. All non-Oracle files in the current FRA that have not been backed up already, are backed up.
- E. These backups can be written to disk or SBT.
Answer: C,E
Explanation:
https://blog.toadworld.com/rman_-_using_the_flash_recovery_area
NEW QUESTION # 112
The CATDB12c database contains an Oracle Database version 12c catalog schema owned by the RC12C user. The RCAT11 database contains an Oracle Database version 11g catalog schema owned by the RC11 user in which several databases are registered. Both the databases are open. You execute the RMAN commands: RMAN> CONNECT CATALOG rcl2c/passl2c@catdbl2c RMAN> IMPORT CATALOG rcll/pwdcatll@ractll Which two tasks are performed as part of the import?
- A. Recovery catalog is resynchronized with the control files of the registered databases.
- B. Databases from the RC12C catalog are implicitly unregistered if the RC11 catalog has registered databases with same name.
- C. Imported databases are unregistered from the RC11 catalog.
- D. Local and global stored scripts that have the same name as existing scripts in the RC12C catalog are automatically renamed.
- E. All databases registered in the RC11 catalog are registered in the RC12C catalog.
Answer: D,E
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? (Choose two.)
- A. CDB$ROOT is in MOUNT state.
- B. PDB1 and PDB2 are in MOUNT state.
- C. PDB1 and PDB2 are in READ ONLY state.
- D. PDB$SEED is in READ ONLY state.
- E. Redo logs are opened.
Answer: A,B
NEW QUESTION # 114
Which three actions are performed by the Oracle Preinstallation RPM, oracle-database-server-xxxx- preinstall, for Oracle Grid Infrastructure, where xxxx is the Oracle version and release? (Choose three.)
- A. creating the oracle OS user
- B. performing checks to ensure minimum configuration requirements for Oracle Grid Infrastructure are met
- C. configuring the OS for Oracle Automatic Storage Management shared storage access
- D. creating the grid OS user
- E. creating the OSDBA (dba) group
- F. creating thte oraInventory (oinstall) group
Answer: A,E,F
Explanation:
Reference:
https://docs.oracle.com/cd/E11882_01/install.112/e41961/prelinux.htm#CWLIN2932
NEW QUESTION # 115
Choose two. Which two are true about diagnosing Oracle Database failure situations using Data Recovery Advisor?
- A. Data Recovery Advisor can proactively check for failures.
- B. Using the Data Recovery Advisor LIST FAILURE command always requires that the database for which failures are to be listed is in MOUNT state.
- C. ata Recovery Advisor can be used if a database is in the NOMOUNT state.
- D. A failure can be closed only if the database is in MOUNT state.
- E. Data Recovery Advisor can be used if a database is closed.
Answer: A,B
NEW QUESTION # 116
You issued this command: RMAN> BACKUP RECOVERY FILES; Which two are true? (Choose two.)
- A. All Oracle recovery files in the current FRA that have not been backed up already, are backed up. D)All Oracle recovery files in the current fast recovery area (FRA) are backed up.
- B. All Oracle recovery files not in the current FRA that have not been backed up already, are backed up.
- C. All non-Oracle files in the current FRA that have not been backed up already, are backed up.
- D. These backups can be written to disk or SBT.
Answer: A,B
NEW QUESTION # 117
Which two are true about the Oracle dataabsemethodology? (Choose two.)
- A. The Oracle Database time model should be used to find the database and instance areas most in need of tuning.
- B. Tuning activities should stop once the user is satisfied with performance.
- C. SQL statements should always be tuned before tuning any file systems.
- D. Tuning activities should stop onceagreed service levels for performance have been met.
- E. The alert log should be used to find the database and instance areas most in need of tuning.
- F. The database instance memory should always be tuned before tuning any file systems.
Answer: D,E
NEW QUESTION # 118
Which two are true about instance recovery?
- A. Setting fast_start_mttr_target to a lower value reduces instance recovery time by causing dirty buffers to be written to disk more frequently, thereby reducing the number of I/Os needed during instance recovery.
- B. It is not possible if an archived log is missing.
- C. Setting fast_start_mttr_target to a higher value reduces instance recovery time by causing the log writer to write more frequently, thereby reducing the number of I/Os needed during instance recovery.
- D. It is performed automatically after the database is opened; however, blocks requiring recovery are not available until they are recovered.
- E. It is performed by the Recovery Writer (rvwr) background process.
- F. It is performed automatically while the database remains in mount state. Then the database is opened.
Answer: A,B
NEW QUESTION # 119
......
New (2026) Oracle 1Z0-083 Exam Dumps: https://examsboost.actualpdf.com/1Z0-083-real-questions.html
