Pass the Oracle Database 19c 1z0-083 Questions and answers with ExamsMirror

PDB-level resource plans can limit uncommitted UNDO per consumer group.

A PDB-level resource plan can limit session PGA memory.

A CDB-level resource plan can limit PDB UNDO use.

A CDB-level resource plan can limit session CPU utilization.

A CDB-level resource plan is mandatory when using PDB-level resource plans.

A CDB-level resource plan can limit PDB CPU utilization

Decreasing PCTUSED

Decreasing PCTFREE

Increasing the number of DBWN process

Using Automatic Segment Space Management (ASSM)

Increasing db_buffer_cache based on t he V$DB_CACHE_ADVICE recommendation

It succeed

It fails because no parallel channels are allocated for the auxiliary databa

It fails because connection to the AUXILIARY instance must be as SYSD

Itsucceeds only if the target database is greater than 40

No catalogued backup of the TARGET is used to duplicate the databa

The UNDO TABLESPACE clause is always required when no connection exists to the recovery catalog and the TARGET database is closed.

RMAN disk-based backups of the database to be duplicated can be used by the auxiliary instance.

The UNDO TABLESPACE clause is always required when no connection exists to the TARGET instance.

The UNDO TABLESPACE clause is never required.

RMAN "pushes" the backups of the database to be duplicated over the network to the auxiliary instance.

It considers the filters in WHERE clauses when generating execution plans for SQL statements.

It obeys all hints.

It considers object statistics when generating execution plans for SQL statements.

It updates stale object statistics in the Data Dictionary.

It can only use SQL Plan Directives tied to the SQL statement for which a plan is being generated.

It can re-optimize execution plans after previous executions detect suboptimal plans.

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 can be 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.

A snapshot copy PDB can be a full copy of a source PDB.

A snapshot copy PDB does not depend on an existing storage snapshot of the source PDB.

A PDB snapshot depends on an existing storage snapshot of the source PDB.

A PDB snapshot can be a full copy of a source PDB.

A CDB can be duplicated using the Database Configuration Assistant (DBCA) in silent mode with no configuration required before starting the duplication.

A CDB can be duplicated using Recovery Manager (RMAN) with no configuration required before starting the duplication.

A PDB snapshot can be a sparse copy of a source PDB.

Single-byte character sets provide better performance than multibyte character sets.

Unicode enables information from any language to be stored using a single character set.

Unicode is the only supported character set for Oracle databases created using Database Configuration Assistant (DBCA).

Single-byte character sets always use 7-bit encoding schemes.

Multibyte character sets allow more efficient space utilization than single byte character sets.

Single-byte character sets always use 8-bit encoding schemes.

Any PDB not specified in the plan will be unable to execute statements in parallel.

PDB3 can use all available parallel execution processes at times.

PDB1 is always limited to 40% of the available system resources regardless of demand.

Any PDB notspecified in the plan will be able to use a maximum of 16.5% of the available system resources.

PDB3 is guaranteed to receive at least 20% of the available system resources if there is enough demand.

PDB2 is guaranteed at least 25% of the available parallel execution processes if there is enough demand.

A media manager always writes RMAN requested backups to tape.

A media manager is required to create RMAN image copies.

A media manager is required to create RMAN proxy copies.

The media manager layer (MML) routines provided by Oracle support any vendors' media management products.

By default, a request for a proxy copy may result in a backup set being created.