Get 100% Success with Latest Oracle Database 19c 1Z0-083 Exam Dumps Dec 08, 2023 [Q29-Q49]

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Get 100% Success with Latest Oracle Database 19c 1Z0-083 Exam Dumps Dec 08, 2023

The Best 1Z0-083 Exam Study Material and Preparation Test Question Dumps

To take the exam, candidates must have a solid understanding of basic database administration concepts and practices, as well as experience working with Oracle Database technology. They must also have completed the Oracle Database Administration I exam (1Z0-082) or have equivalent knowledge and experience. 1Z0-083 exam consists of 80 multiple-choice questions and has a time limit of 120 minutes.

To prepare for the Oracle 1Z1-083 exam, candidates can enroll in training courses and study materials that cover the exam topics. These courses are designed to provide candidates with a comprehensive understanding of the exam content and help them develop the skills needed to pass the exam. Additionally, candidates can take practice exams to familiarize themselves with the exam format and identify areas where they need to improve.

Q29. While backing up to an SBT channel, you determine that the read phase of your compressed Recovery Manager (RMAN) incremental level 0 backup is a bottleneck.
FORCE LOGGING is enabled for the database.
Which two could improve read performance? (Choose two.)

Increase the size of tape I/O buffers.

Disable FORCE LOGGING for the database.

Increase the size of the database buffer cache.

Enable asynchronous disk I/O.

Increase the level of RMAN multiplexing.

Q30. 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?

Data file 24 can be recovered while CDB$ROOT and PDB$SEED are opened.

Data file 24 must be recovered while the CDB is opened.

Data file 24 cannot be recovered while the CDB is opened.

Data file 24 can be recovered while PDB2 is opened.

Data file 24 must be recovered while PDB2 is closed.

Q31. Choose three. Which three are true about recovering tables using RMAN?

RMAN can recover tables owned by the SYSTEM user.

RMAN can recover tables owned by the SYS user.

RMAN can recover tables in the SYSTEM tablespace.

RMAN always uses an auxiliary instance.

RMAN can recover a table after a DDL operation has altered the table structure.

RMAN can recover tables in the SYSAUX tablespace.

RMAN can recover tables in a standby database.

Q32. Which two are true about RMAN encryption? (Choose two.)

RMAN encryption keys are stored in a database keystore.

RMAN can encrypt the Oracle Database password file.

Dual-mode encrypted backups can be restored only if both the password and the keystore used for encryption are available.

The SET ENCRYPTION command overrides encryption settings specified by the CONFIGURE ENCRYPTION command.

Password encryption can be persistently configured using the CONFIGURE ENCRYPTION command.

Q33. Examine these queries and their output:

An online RMAN backup of the CDB was taken an hour before Restore Point R1 was created. You want to recover PDB1 to Restore Point R1.
How do you achieve this?

Execute FLASHBACK PLUGGABLE DATABASE PDB1 TO RESTORE POINT R1 by using RMAN while connected to PDB1.

Execute FLASHBACK PLUGGABLE DATABASE PDB1 TO RESTORE POINT R1 by using SQL while connected to PDB1.

Execute FLASHBACK PLUGGABLE DATABASE PDB1 TO RESTORE POINT R1 by using SQL while connected to CDB$ROOT.

Execute FLASHBACK PLUGGABLE DATABASE PDB1 TO RESTORE POINT R1 by using RMAN while connected to CDB$ROOT.

This cannot be done due to the lack of a clean restore point.

Q34. Which two are true about gathering optimizer statistics? (Choose two.)

Executing DBMS_STATS.GATHER_DATABASE_STATS while connected to CDB$ROOT gathers object statistics in all open PDBs except PDB$SEED.

Executing DBMS_STATS.GATHER_DATABASE_STATS while connected to a PDB opened in read/write mode gathers object statistics for that PDB.

Executing DBMS_STATS.GATHER_DATABASE_STATS while connected to CDB$ROOT gathers object statistics only in CDB$ROOT.

System statistics can be gathered only while connected to CDB$ROOT.

Executing DBMS_STATS.GATHER_DATABASE_STATS while connected to CDB$ROOT gathers object statistics in all open pluggable databases (PDBs)

Q35. Which two are true about Oracle Optimizer Statistics, their use, and their collection? (Choose two.)

The number of table rows is considered when evaluating the cost of accessing a table using an index.

Index balanced B*Tree height is considered when evaluating the cost of using an index.

The Statistics Advisor can help recommend the best way to gather statistics.

Statistics collected using DBMS_STATS always yield the best optimizer result.

The Statistics Advisor generates actions for all recommendations.

Q36. You are administering a multitenant container database (COB) that contains two pluggable databases (PDBs), pdb1 and pdb2. You are connected to pdb2 as a common user with DBA privileges. The statistics_level parameter is PDB modifiable. As the user sys, execute the following command on pdb2: SQL> ALTER SYSTEM SET STATISTICS_LEVEL=ALL SID=’*’ SCOPE=SPFILE; Which statement is true about the result of this command?

The statistics_level parameter is set to all when any of the PDBs is reopened.

The statistics_level parameter is set to all only for PDB2 when it is reopened.

The statistics_level parameter is set to all when the root database is restarted.

The statement is ignored because there is no SPFILE for a PDB.

Q37. Which three are true about Database Point-in-Time Recovery?

The target point for the recovery must be specified as a time or System Change Number (SCN).

The database must be open resetlogs after Database Point-in-Time Recovery.

The database must be in archivelog mode.

Database Point-in-Time Recovery is performed by the Managed Recovery Process (MRP)

The database must be in mount state when performing Database Point-in-Time Recovery.

The database must have flashback database on to perform Database Point-in-Time Recovery.

Q38. You plan to install Oracle Grid Infrastructure for a Standalone Server and Oracle Database for the first time on a server.
Examine this command and its outcome:

Which two are true? (Choose two.)

oracle will be an owner of the Oracle Inventory.

oracle must be the owner of every Oracle Database installation.

oracle can own an Oracle Database installation but not an Oracle Grid Infrastructure installation.

oracle will be granted the SYSASM privilege when installing the Oracle Database software.

The user account, oracle, and group, oinstall, can be used for all Oracle software installations.

Q39. Which two are true about diagnosing Oracle Database failure situations using Data Recovery Advisor?

Using the Data Recovery Advisor list failure command always requires that the database for which failures are to be listed is in mount state.

Data Recovery Advisor can be used if a database is closed.

Data Recovery Advisor can proactively check for failures.

A failure can be closed only when it has been repaired.

The Data Recovery Advisor change failure command can be used only to change failure priorities.

Q40. 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?

Redo logs are opened.

PDB$SEED is in read only state.

PDB1 and PDB2 are in read only state.

PDB1 and PDB2 are in mount state.

CDB$ROOT is in mount state.

Q41. Which two are true about OS groups and users for Oracle Grid Infrastructure and the Oracle Relational Database Management System (RDBMS)? (Choose two.)

By default, members of the OSASM group can access Automatic Storage Management and RDBMS instances.

The primary group for the Oracle Grid Infrastructure and Oracle Database owners must be the Oracle Inventory group.

The Oracle Grid Infrastructure installation must be owned by the grid user.

The Oracle Grid Infrastructure owner owns Oracle Restart and Oracle Automatic Storage Management binaries.

The Oracle Grid Infrastructure owner must have OSOPER, OSBACKUPDBA, and OSKMDBA as secondary groups.

The same OSDBA group must be used for Automatic Storage Management and the Oracle Database.

Q42. 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.)

performing checks to ensure minimum configuration requirements for Oracle Grid Infrastructure are met

creating the oracleOS user

creating the OSDBA (dba) group

creating thte oraInventory (oinstall) group

creating the grid OS user

configuring the OS for Oracle Automatic Storage Management shared storage access

Q43. Choose two. You plan to perform cross-platform PDB transport using XTTS. Which two are true?

Automatic conversion of endianess occurs.

The source and target platforms must have the same endianess.

The source PDB can be in MOUNT or OPEN state.

The source PDB must not be an application root.

The source PDB must be in MOUNT state.

A backup of the PDB must exist, taken using the BACKUP command with the To PLATFORM clause.

Q44. Which two are true about creating RMAN backups for an Oracle container database?

spfile backups can be created while connected to an application root PDB.

The backup database command will create a pluggable database (PDB) backup when RMAN is connected to a PDB.

Tablespaces from different PDBs with identical names must be backed up by connecting RMAN separately to each PDB to back up the tablespaces.

The backup pluggable database command can be used to back up cdb$root.

The backup database plus archivelog command will back up archive logs when RMAN is connected to a PDB.

Q45. Which two are true about diagnosing Oracle Database failure situations using Data Recovery Advisor?
(Choose two.)

Using the Data Recovery Advisor LIST FAILURE command always requires that the database for which failures are to be listed is in MOUNT state.

A failure can be closed only when it has been repaired.

Data Recovery Advisor can be used if a database is closed.

The Data Recovery Advisor CHANGE FAILURE command can be used only to change failure priorities.

Data Recovery Advisor can proactively check for failures.

Q46. Which two are true about creating pluggable databases (PDBs) using snapshots in Oracle 19c and later releases? (Choose two.)

A PDB snapshot is always a full copy of the source PDB.

A PDB snapshot is always a sparse copy of the source PDB.

A snapshot copy PDB depends on a storage snapshot which can only be stored on specific file systems.

A PDB snapshot depends on a storage snapshot which can be stored on any file system.

A PDB snapshot depends on a storage snapshot which can only be stored on specific file systems.

A snapshot copy PDB depends on a storage snapshot which can be stored on any file system.

A snapshot copy PDB can be created from a stand-alone clone PDB.

Q47. Which three are true In Oracle 19c and later releases?

Tablespaces always remain In read/write mode during transportable tablespace operations.

Simultaneous data pump jobs can be limited at the pluggable database (PDB) level.

Tablespaces never remain In read/write mode during transportable tablespace operations.

An ordinary data pump export of a table with encrypted columns will always encrypt the same columns when imported.

A transportable data pump import can leave a plugged-in tablespace in read-only mode.

A transportable data pump import can leave a plugged-in tablespace In read/write mode.

Q48. Which three are true about actions that can or cannot be performed by users with the SYSBACKUP privilege?
(Choose three.)

They can view data from any data dictionary view or dynamic performance view.

They cannot create restore points.

They cannot drop tablespaces.

They can create any table.

They can drop any tablespace.

They can view data from any user-defined tables.

Q49. Which four are true about RMAN backup sets? (Choose four.)

A backup piece can belong to only one backup set.

A data file can be split into multiple sections stored in different backup sets.

A data file canbe split into multiple sections stored in different backup pieces in the same backup set.

Blocks from multiple data files can be contained in one backup piece,

A backup set can contain only one backup piece.

A backup set must be written to media.

A backup set must be written to disk.

Blocks from multiple data files can be contained in one backup set,

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Get 100% Success with Latest Oracle Database 19c 1Z0-083 Exam Dumps Dec 08, 2023 [Q29-Q49]

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