Download the Latest 1Z1-083 Dumps - 2024 1Z1-083 Exam Questions
Latest Oracle 1Z1-083 Certification Practice Test Questions
Oracle 1Z1-083 certification exam is designed for professionals who want to validate their expertise in managing and administering Oracle databases. 1Z1-083 exam is the second step in the Oracle Database Administrator certification track and covers advanced topics related to database administration. Passing 1Z1-083 exam can help you prove your proficiency in managing complex Oracle databases and enhance your career prospects in the IT industry.
Preparing for the Oracle 1Z1-083 exam requires a solid understanding of Oracle database administration concepts and hands-on experience working with Oracle databases. There are various study materials available for 1Z1-083 exam, including online courses, books, practice exams, and workshops. With proper preparation, passing the Oracle 1Z1-083 exam can be a significant achievement for database administrators and can provide them with the recognition they deserve for their skills and knowledge in Oracle database administration.
NEW QUESTION # 93
Which two are true about creating RMAN backups for an Oracle container database? (Choose two.)
- A. The BACKUP DATABASEcommand will create a pluggable database (PDB) backup when RMAN is connected to a PDB.
- B. SPFILEbackups can be created while connected to an application root PDB.
- C. The BACKUP PLUGGABLE DATABASEcommand can be used to back up CDB$ROOT.
- D. The BACKUP DATABASE PLUS ARCHIVELOGcommand will back up archive logs when RMAN is connected to a PDB.
- E. Tablespaces from different PDBs with identical names must be backed up by connecting RMAN separately to each PDB to back up the tablespaces.
Answer: A,E
NEW QUESTION # 94
Which two are true about RMAN encryption? (Choose two.)
- A. The SET ENCRYPTIONcommand overrides encryption settings specified by the CONFIGURE ENCRYPTIONcommand.
- B. Password encryption can be persistently configured using the CONFIGURE ENCRYPTIONcommand.
- C. Dual-mode encrypted backups can be restored only if both the password and the keystore used for encryption are available.
- D. RMAN encryption keys are stored in a database keystore.
- E. RMAN can encrypt the Oracle Database password file.
Answer: A,C
Explanation:
Explanation/Reference: https://docs.oracle.com/database/121/BRADV/rcmconfa.htm#BRADV89476
NEW QUESTION # 95
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 have FLASHBACK DATABASE ON to perform Database Point-in-Time Recovery.
- C. The database must be open RESETLOGS after Database Point-in-Time Recovery.
- D. The Database must be in ARCHIVELOG mode.
- E. The target point for the recovery must be specified as a stime or System Change Number (SCN).
- F. The database must be in MOUNT state when performing Database Point-in-Time Recovery.
Answer: C,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 # 96
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 middleware.
- B. It is an Oracle Database service
- 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 can be used to provision applications.
Answer: A,E
NEW QUESTION # 97
Examine this configuration:
* CDB1 is a container database.
* PDB1 and PDB2 are pluggable databases in CDB1.
* PDB1 and PDB2 are OPEN in READ WRITE mode.
You execute these commands successfully:
Which two are true? (Choose two.)
- A. PDB1 is closed.
- B. Uncommitted transactions in CDB1 and PDB1 have been rolled back.
- C. CDB1 is in MOUNT state
- D. CDB1 is shut down.
- E. Uncommitted transactions in PDB1 have been rolled back.
Answer: A,C
NEW QUESTION # 98
Which two are true about the execution of operating system scripts starting from Oracle Database 19c? (Choose two.)
- A. The sudo password must be specified in a response file.
- B. The sudo password can be specified in a response file.
- C. orainstRoot.sh can be executed automatically by the Database installer by using sudo or root credentials.
- D. root.sh can be executed automatically by the Database installer only by using sudo credentials.
- E. root.sh can be executed automatically by the Database Installer only if it is provided with root credentials.
- F. The root password cannot be specified in a response file.
Answer: D,F
NEW QUESTION # 99
Which three are true about RMAN duplexed backup sets or image copies?
- A. An image copy on sbt can be copied to disk.
- B. A backup set may be duplexed with both copies written to disk.
- C. An image copy on disk can be copied to disk.
- D. An image copy on disk can be copied to sbt.
- E. A backup set may be duplexed with both copies written to sbt.
- F. A backup set may be duplexed so that one copy is written to sbt and the other to disk.
Answer: B,C,E
NEW QUESTION # 100
Choose the best answer. Examine this configuration: 1. CDB1 is an Oracle Database 12c Release 2 container database (CDB). 2. PDB1 and PDB2 are two pluggable databases (PDBs) in CDB1. After successfully performing all the preupgrade tasks, you execute these commands from the Oracle Database 18c environment: $ export ORACLE_SID=cdb1 $ sqlplus / as sysdba SQL> STARTUP UPGRADE; SQL> SHOW pdbs CON_ID CON_NAME OPEN MODE RESTRICTED ---------------------------------------------------------------2 PDB$SEED 3 PDB1 4 PDB2 MIGRATE YES MOUNTED YES MOUNTED YES SQL> ALTER PLUGGABLE DATABASE pdb1 OPEN UPGRADE; Pluggable database altered. SQL> exit $ $ORACLE_HOME/perl/bin/perl catctl.pl -C 'PDB2' What is the outcome?
- A. Only CDB$ROOT, PDB$SEED, and PDB1 are upgraded.
- B. Only CDB$ROOT and PDB$SEED are upgraded.
- C. Only CDB$ROOT, PDB$SEED, and PDB2 are upgraded.
- D. It fails because PDB2 is not in UPGRADE state.
- E. CDB$ROOT, PDB$SEED, PDB1, and PDB2 are upgraded.
- F. It fails because PDB$SEED is in MIGRATE state.
Answer: E
NEW QUESTION # 101
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. CDB1 and CDB2 must be in shared undo mode.
- B. Cloning HR_ROOT automatically clones HR_PDB1.
- C. A common user must exist in CDB2 with the CREATE PLUGGABLE DATABASE privilege.
- D. All transactions in HR_PDB1 of CDB1 must commit before the cloning process starts.
- E. The HR_PDB1clone created in CDB2 will be in mount state when cloning ends.
Answer: B,E
NEW QUESTION # 102
Which two are true about RMAN duplexed backup sets?
- A. A non-duplexed backup set written to SBT can be duplexed to tape by backing up the backup set that is already on tape.
- B. A duplexed backup set uses the same number of SBT channels as a non-duplexed backup set for the same number of files.
- C. A non-duplexed backup set written to SBT can be duplexed to disk by backing up the backup set that is already on tape.
- D. A non-duplexed backup set written to disk can be duplexed to tape by backing up the backup set that is already on disk.
- E. A duplexed backup set always uses twice as many SBT channels as a non-duplexed backup set for the same number of files.
- F. A non-duplexed backup set written to disk can be duplexed to disk by backing up the backup set that is already on disk.
Answer: B,E
NEW QUESTION # 103
Which two are true about Recovery Manager (RMAN) diagnostic message output? (Choose two.)
- A. Media Management messages for SBT devices are written to an Oracle trace file.
- B. The RMAN LOG command line clause causes output issued during RMAN command compilation to be written to a log file and to standard output.
- C. RMAN error stacks should be read from the bottom up as that is the order in which errors are generated.
- D. RMAN error stacks should be read from the top down as that is the order in which errors are generated.
- E. Media Management messages for SBT devices are always written to sbtio.log.
- F. The RMAN LOG command line clause causes output issued during RMAN command compilation to be written to a log file only.
Answer: C,F
NEW QUESTION # 104
Which three statements are true about Automatic Workload Repository (AWR)?
- A. The AWR data is stored in memory and in t he database.
- B. All AWR tables belong to the SYSTEM schema.
- C. The snapshots collected by AWR are used by the self-tuning components in the database
- D. AWR contains system wide tracing and logging information.
- E. AWR computes time model statistics based on time usage for activities, which are displayed in the v$SYS time model and V$SESS_TIME_MODEL views.
Answer: A,C,E
NEW QUESTION # 105
Which three are located by using environment variables? (Choose three.)
- A. the Optimal Flexible Architecture (OFA) compliant path to store Oracle software and configuration files.
- B. the location of Oracle Net Services configuration files
- C. the temporary disk space used by Oracle Installer during installation
- D. the maximum number of database files that can be opened by a database instance
- E. default directories for temporary files used by temporary tablespaces
- F. the list of a disk group names to be mounted by an Oracle Automatic Storage Management (ASM) instance at startup
Answer: B,D,E
NEW QUESTION # 106
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. Data files can be converted on the source system.
- C. Data files can be converted on the destination system.
- D. By default, the transported database will use Oracle Managed Files (OMF)
- E. Databases can be transported between systems with different endian formats.
- F. A new DBID is automatically created for the transported database.
Answer: B,C,D
Explanation:
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.
NEW QUESTION # 107
Which three are true about Oracle Grid Infrastructure for a Standalone Server?
- A. It requires Oracle ASM Filter Driver (ASMFD) to manage Automatic Storage Management (ASM) disks.
- B. It requires Oracle ASMLibto manage Automatic Storage Management (ASM) disks.
- C. It requires the operating sys em oracle_base environment variable to be predefined before installation.
- D. It includes both Oracle Restart and Oracle Automatic Storage Management (ASM) software.
- E. It creates one disk group during installation.
- F. Automatic Storage Management (ASM) requires that O/S groups OSASM and OSDBA be assigned as secondary groups for its installation owner.
Answer: A,D,E
NEW QUESTION # 108
Which two are true about the execution of operating system scripts starting from Oracle Database 19c?
- A. The sudo password must be specified in a response file.
- B. root.sh can be executed automatically by the Database installer only by using sudo credentials.
- C. The sudo password can be specified in a response file.
- D. The root password cannot be specified in a response file.
- E. orainstRoot.sh can be executed automatically by the Database installer by using sudo or root credentials.
- F. root.sh can be executed automatically by the Database installer only if it is provided with root credentials.
Answer: C,F
NEW QUESTION # 109
Which two are true about instance recovery? (Choose two.)
- 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 performed by the Recovery Writer (RVWR) background process.
- C. It is performed automatically while the database remains in MOUNT state. Then the database is opened.
- D. Setting FAST_START_MTTR_TARGET to a higher value reduces instance recovery time by causing the log writer to write more frquently, thereby reducing the number of I/Os needed during instance recovery.
- E. It is not possible if an archived log is missing.
- F. It is performed automatically after the database is opened; however, blocks requiring recovery are not available until they are recovered.
Answer: C,D
NEW QUESTION # 110
Which three can be done using Oracle Database Configuration Assistant (DBCA) starting from Oracle Database 19c? (Choose three.)
- A. relocating a remote pluggable database in interactive mode
- B. cloning a remote container database in interactive mode
- C. cloning a remote pluggable database in silent mode
- D. cloning a remote container database in silent mode
- E. relocating a remote pluggable database in silent mode
- F. relocating a remote container database in interactive mode
- G. relocating a remote container database in silent mode
Answer: A,D,E
Explanation:
Explanation/Reference: https://docs.oracle.com/en/database/oracle/oracle-database/19/clone-pdbs-using-dbca-silent- mode/index.html?
learningpath=true&appuser=nobody&appsession=170971049395&contentid=26693&activityname=Clone%
20PDBs%20using%20DBCA%20in%20Silent%20Mode&eventid=6352
NEW QUESTION # 111
Which three actions are performed by Database Upgrade Assistant (DBUA)? (Choose three.)
- A. It performs prerequisite checks to verify if the Oracle database is ready for upgrade.
- B. It sets all user tablespaces to "read-only" before starting the upgrade.
- C. It empties the RECYCLE BIN.
- D. It increases tablespace size, if required, to meet upgrade requirements.
- E. It recompiles all stored PL/SQL code by using utlrp.sql.
- F. It removes the AUDSYS schema and the AUDIT_ADMIN and AUDIT_VIEWER roles
Answer: A,C,D
Explanation:
Reference:
https://docs.oracle.com/en/database/oracle/oracle-database/12.2/upgrd/upgrading-oracle-database-upgrade-assistant-dbua.html#GUID-307DACD9-ECEE-4079-B767-B22620B99900
https://docs.oracle.com/en/database/oracle/oracle-database/12.2/upgrd/upgrading-oracle-database-upgrade-assistant-dbua.html#GUID-8BDDF859-1638-45AC-824D-78FC8154847C
NEW QUESTION # 112
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