Get 1Z0-083 Braindumps & 1Z0-083 Real Exam Questions [Q165-Q188]

Get 1Z0-083 Braindumps & 1Z0-083 Real Exam Questions

Oracle 1Z0-083 Actual Questions and Braindumps

The Oracle 1Z0-083 exam covers a wide range of topics, including database backup and recovery, database performance tuning, data management, security, and more. Passing the Oracle 1Z0-083 exam demonstrates to employers that a candidate possesses the necessary skills and knowledge to manage and maintain an Oracle database efficiently and effectively, making them a valuable asset to any organization that uses Oracle databases.

Oracle 1Z0-083 exam consists of 80 multiple-choice questions and has a duration of 105 minutes. 1Z0-083 exam is administered by Pearson VUE and can be taken at a testing center or online. The passing score for the exam is 63%, and candidates who pass the exam will receive a digital badge and a certificate of achievement.

 

NEW QUESTION # 165
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 the Oracle Database home when using a centralized Rapid Home Provisioning server
• C. to switch an existing Oracle Database home to a newer release of Oracle software on the same server
• D. to switch to a patched Oracle Database home
• E. to switch back to the previous Oracle home as part of a rollback operation

Answer: D

NEW QUESTION # 166
Which three are true about recovery operations done without using Recovery Manager (RMAN)? (Choose three.)

• A. A lost password file can be manually re-created with the orapwd utility.
• B. A lost password file can be re-created with SQL*PLUS.
• C. A lost TEMPFILE must always be re-created manually.
• D. A lost PFILE can be re-created alert.log using SQL*PLUS.
• E. A lost SPFILE can be recovered from memory using SQL*PLUS.
• F. A lost index tablespace can be re-created without performing any recovery.

Answer: A,B,D

NEW QUESTION # 167
Which three are true about Recovery Manager (RMAN) in Oracle Database 19c and later releases? (Choose three.)

• A. It is only possible for RMAN to connect to a pluggable database as a target if an RMAN Virtual Private Catalog is used.
• B. A Virtual Private Catalog used to register a container database can be created in a pluggable database.
• C. It is always possible for RMAN to connect to a pluggable database as a target.
• D. A Virtual Private Catalog used to register a container database must be created in a pluggable database.
• E. A Virtual Private Catalog used to register a container database can be created in a non-container database.
• F. It is always possible for RMAN to connect to a pluggable database as a target if any RMAN Catalog is used.

Answer: B,C,E

NEW QUESTION # 168
Which three are true about performing an Oracle Database install on Linux? (Choose three.)

• A. The Oracle Preinstallation RPM must be used to configure the Oracle database installation owner, the Oracle Inventory group, and an Oracle administrative privileges group.
• B. The runfixup.sh script can install missing RPMs.
• C. The Oracle database administrator must be granted access to the root operating system account to tun root privileged scripts.
• D. It can be done after installing Grid Infrastructure for a Standalone Server.
• E. The Oracle Preinstallation RPM can be used to configure the Oracle database installation owner, the Oracle Inventory group, and an Oracle administrative privileges group.
• F. It allows you to select the languages supported by the Oracle database server.
• G. It can be done before installing Grid Infrastructure for a Standalone Server.

Answer: C,E,F

NEW QUESTION # 169
Which two are true about the character sets used in an Oracle database? (Choose two.)

• A. Unicode enables information from any language to be stored using a single character set.
• B. Unicode is the only supported character set for Oracle databases created using Database Configuration Assistant (DBCA).
• C. Single-byte character sets always use 8-bit encoding schemes.
• D. Multibyte character sets allow more efficient space utilization than single byte character sets.
• E. Single-byte character sets provide better performance than multibyte character sets.
• F. Single-byte character sets always use 7-bit encoding schemes.

Answer: A,E

Explanation:
Reference:
https://docs.oracle.com/database/121/NLSPG/ch2charset.htm#NLSPG166

NEW QUESTION # 170
Which two are true about RMAN encryption? (Choose two.)

• A. The SET ENCRYPTION command overrides encryption settings specified by the CONFIGURE ENCRYPTION command.
• B. Password encryption can be persistently configured using the CONFIGURE ENCRYPTION command.
• C. RMAN can encrypt the Oracle Database password file.
• D. Dual-mode encrypted backups can be restored only if both the password and the keystore used for encryption are available.
• E. RMAN encryption keys are stored in a database keystore.

Answer: A,D

NEW QUESTION # 171
Which three are true about thresholds, metrics, and server-generated alerts? (Choose three.)

• A. Cleared stateful alerts are displayed by querying DBA_ALERT_HISTORY.
• B. Metrics are statistical counts for a specific unit.
• C. They are generated by SMON when a tablespace is 97% full.
• D. A space usage management alert is automatically cleared after the underlying problem is resolved.
• E. All metrics are instance related.
• F. STATISTICS_LEVEL must be set to ALL to generate alerts.

Answer: A,B,D

NEW QUESTION # 172
Examine this configuration:

You execute these commands before upgrading the database to the current release:

For which databases will fixup scripts be created?

• A. CDB1, PDB$SEED, and PDB1 only
• B. PDB$SEED, PDB1, and PDB2 only
• C. CDB1 and PDB$SEED only
• D. CDB1, PDB1, and PDB2 only
• E. CDB1, PDB$SEED, PDB1, and PDB2

Answer: C

NEW QUESTION # 173
Choose two. In which two situations can you use Database Upgrade Assistant?

• A. when the hardware platform needs to be changed as part of the upgrade
• B. when multiple pluggable databases in a container database have to be upgraded in a specific sequence
• C. when a character set conversion is required during the upgrade
• D. when the target and source database are on the same platform
• E. when the operating system (OS) needs to be changed as part of the upgrade

Answer: B,D

NEW QUESTION # 174
Which three actions are performed by Database Upgrade Assistant (DBUA)? (Choose three.)

• A. It removes the AUDSYS schema and the AUDIT_ADMINand AUDIT_VIEWERroles
• B. It recompiles all stored PL/SQLcode by using utlrp.sql.
• C. It empties the RECYCLE BIN.
• D. It increases tablespace size, if required, to meet upgrade requirements.
• E. It performs prerequisite checks to verify if the Oracle database is ready for upgrade.
• F. It sets all user tablespaces to "read-only" before starting the upgrade.

Answer: B,D,E

Explanation:
Explanation/Reference: https://oracle-base.com/articles/12c/upgrading-to-12c

NEW QUESTION # 175
Choose two. A database is configured in ARCHIVELOG mode. A full RMAN backup exists but no control file backup to trace has been taken. A media failure has occurred. In which two scenarios is incomplete recovery required?

• A. after losing all members of the CURRENT online redo log group
• B. after losing a SYSAUX tablespace data file
• C. after losing all copies of the control file
• D. after losing all members of an INACTIVE online redo log group
• E. after losing an UNDO tablespace that is in use

Answer: A,C

NEW QUESTION # 176
Choose four. Which four are true about performing Tablespace Point-In-Time Recovery (TSPITR) using Recovery Manager (RMAN)?

• A. RMAN automatically adds any required tablespaces to the recovery set to make it selfcontained. G) FLASHBACK DATABASE must be enabled for it to work. H) It can be used to recover a dropped
• B. It can be used to recover a truncated table.
• C. It can be performed using an auxiliary instance managed by a DBA.
• D. It can be performed using an auxiliary instance managed by RMAN.
• E. It can be performed repeatedly until the correct time is found without using an RMAN catalog. E)RMAN always includes tablespaces containing UNDO segments in the recovery set.

Answer: B,D

Explanation:
tablespace.

NEW QUESTION # 177
Which three are true about an application seed pluggable database (PDB)?

• A. It Is automatically synchronized with its application root PDB when an application is upgraded.
• B. A new application PDB created by cloning an application seed PDB can have an up-to-date version of the application installed after cloning completes.
• C. It is not required in an application container.
• D. It cannot be dropped from its application container.
• E. A new application PDB created by cloning an application seed PDB can have an old version of the application installed after cloning completes.
• F. It is automatically synchronized with its application root PDB when an application is installed.
• G. It cannot be added to an application container after the application container has already been created.

Answer: B,E,F,G

NEW QUESTION # 178
Which two are true about poorly performing SQL statements and their tuning in Oracle database instances?

• A. SQL statements doing only logical reads never require tuning because they do no physical I/O.
• B. SQL statements performing many physical I/Os can always have their performance improved by creating indexes.
• C. Poorly performing SQL statements can be tuned automatically by the Oracle server.
• D. SQL statements doing joins always do more physical I/O than single table queries.
• E. The solution that best optimizes one SQL statement can degrade the performance of others.

Answer: C,E

NEW QUESTION # 179
Choose two. Which two are true about Oracle Database Configuration Assistant (DBCA)?

• A. It can be launched from both the command line and the Universal Installer (OUI) interfaces.
• B. It can only be launched from the command line interface.
• C. It can be used to create container databases and non-container databases.
• D. It can be used to convert a non-container database to a container database.
• E. It can be used to change the character set of an existing database.

Answer: A,C

NEW QUESTION # 180
Which two are true about changing the LOCAL_UNDO_ENABLED property to false in a CDB? (Choose two.)

• A. After the change, any user with the required privilege can create an undo tablespace in the PDBs.
• B. Any new PDB and existing PDBs are automatically configured to use the default undo tablespace in CDB$ROOT.
• C. After the change, only one undo tablespace can exist in CDB$ROOT.
• D. Undo tablespaces existing in PDBs must be dropped before the change.
• E. After the change, only a common user with the required privilege can create an undo tablespace in CDB&ROOT.
• F. After the change, each existing PDB has to be reopened for the new undo mode to take effect.

Answer: B,E

NEW QUESTION # 181
Which two are true about Recovery Manager (RMAN) diagnostic message output? (Choose two.)

• A. The RMAN LOG command line clause causes output issued during RMAN commandcompilation to be written to a log file and to standard output.
• B. Media Management messages for SBT devices are always written to sbtio.log.
• 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. The RMAN LOG command line clause causes output issued during RMAN command compilation to be written to a log file only.
• F. Media Management messages for SBT devices are written to an Oracletrace file.

Answer: E,F

NEW QUESTION # 182
Which three are true about Database Point-in-Time Recovery?

• A. Database Point-in-Time Recovery is performed by the Managed Recovery Process (MRP)
• B. The database must be in archivelog mode.
• C. The target point for the recovery must be specified as a time or System Change Number (SCN).
• D. The database must be in mount state when performing Database Point-in-Time Recovery.
• E. The database must be open resetlogs after Database Point-in-Time Recovery.
• F. The database must have flashback database on to perform Database Point-in-Time Recovery.

Answer: C,D,F

NEW QUESTION # 183
Which two are true about duplicating pluggable databases (PDBs) with RMAN? (Choose two.)

• A. The auxiliary instance is automatically created with ENABLE_PLUGGABLE_DATABASE = TRUE.
• B. CDB$ROOT and PDB$SEED are automatically duplicated.
• C. A user with SYSDBA or SYSBACKUP must be logged in with RMAN to the PDB to duplicate it.
• D. Two or more PDBs can be duplicated with the same RMAN DUPLICATE command.
• E. All tablespaces belonging to a PDB must be duplicated when duplicating the PDB.

Answer: B,D

NEW QUESTION # 184
choose one You enable Flashback Data Archive for a table for which you want to track and save all transactions for four years. After some time, the requirement changes for keeping transactions from four to two years. You execute the following command to change the requirement: SQL> ALTER FLASHBACK ARCHIVE fdal MODIFY RETENTION 2 YEAR; What is the outcome?

• A. All the flashback data archives are purged and the subsequently created flashback archives are maintained for two years
• B. An error is returned because the retention period cannot be reduced.
• C. All historical data older than two years, if any, is archived to flashback logs and the flashback archive is set to new retention time.
• D. All historical data older than two years, if any, is purged from the flashback archive FDA1.

Answer: D

NEW QUESTION # 185
Which three are true about using Database Resource Manager in an Oracle multitenant environment?

• A. A PDB-level resource plan can limit session PGA memory.
• B. A CDB-level resource plan can limit PDB UNDO use.
• C. PDB-level resource plans can limit uncommitted UNDO per consumer group.
• D. A CDB-level resource plan can limit session CPU utilization.
• E. A CDB-level resource plan is mandatory when using PDB-level resource plans.
• F. A CDB-level resource plan can limit PDB CPU utilization

Answer: A,D,F

NEW QUESTION # 186
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 table can undrop a column.
• C. flashback version query can retrieve redo records from online and archived redo log files.
• D. flashback query can retrieve redo records from online and archived redo log files.
• E. flashback drop can undrop an index when undropping a table.

Answer: B,D

NEW QUESTION # 187
Choose three. PDB1 and PDB2 are pluggable databases in CDB1. Examine these commands: $ export ORACLE_SID=CDB1 $ sqlplus / as sysdba SQL> STARTUP ....... Database opened. SQL> SHOW PDBS CON_ID CON_NAME --------------------------------------------------------------------OPEN MODE READ ONLY NO MOUNTED MOUNTED SQL> ALTER PLUGGABLE Pluggable database altered. SQL> ALTER PLUGGABLE DATABASE pdb1 SAVE STATE; Pluggable database altered. SQL> ALTER PLUGGABLE DATABASE pdb1 CLOSE; Pluggable database altered. SQL> ALTER PLUGGABLE A DATABASE pdb2 OPEN; Pluggable database altered. CDB1 is then restarted. Which three are true?

• A. PDB2 will be opened READ WRITE.
• B. PDB1 will be opened READ WRITE.
• C. PDB1 will be MOUNTED.
• D. PDB$SEED will be opened READ ONLY.
• E. PDB2 will be MOUNTED.
• F. PDB$SEED will be MOUNTED

Answer: B,D,E

NEW QUESTION # 188
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Oracle 1Z0-083 exam covers several topics related to advanced database administration, including database architecture, backup and recovery strategies, performance tuning, security management, and high availability solutions. 1Z0-083 exam is intended for professionals who have already gained a basic understanding of Oracle database administration and have experience working with Oracle databases.

 

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