[2023] Use Valid New Free 1Z0-083 Exam Dumps & Answers [Q87-Q110]

[2023] Use Valid New Free 1Z0-083 Exam Dumps & Answers [Q87-Q110]

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[2023] Use Valid New Free 1Z0-083 Exam Dumps & Answers

1Z0-083 Braindumps PDF, Oracle 1Z0-083 Exam Cram

Oracle 1Z1-083 exam is a certification-oriented exam designed for IT professionals who aim to enhance their skillset in Oracle database administration. It tests a candidate’s advanced knowledge in various topics related to Oracle database administration. Oracle Database Administration II certification is globally recognized and widely accepted as a validation of an IT professional’s expertise. Candidates must complete the Oracle Database Administration I exam and have basic knowledge of Oracle database technology to take the 1Z1-083 exam.

QUESTION 87
Which two are true about Oracle instance recovery? (Choose three.)

Recovery begins from the beginning of the CURRENT redo log group.

Recovery begins from the last checkpoint position that was calculated by the Database Writer before instance failure.

Recovery begins from the start of any ACTIVE redo log group or the start of the CURRENT log group if no other group is ACTIVE.

Recovery reads redo until the end of the redo thread. SMON rolls back any dead transactions, and then the datanase is opened.

Recovery begins from the last checkpoint position that was recorded in the control file by the checkpoint process (CKPT).

Recovery reads redo until the end of the redo thread, and then opens the database. SMON then rolls back any dead transactions.

QUESTION 88
Which two are true about Oracle Database Configuration Assistant (DBCA) templates? (Choose two.)

The General Purpose of Transaction Processing templates are most suitable when concurrency and recoverability are key criteria.

Oracle DBCA templates can store only logical structure and not database files.

New templates can only be created by modifying an existing user-created template.

The Data Warehouse template is most suitable when transaction response time is the key criterion.

Oracle DBCA templates can be used to create new databases and duplicate existing databases.

Explanation/Reference: https://docs.oracle.com/database/121/ADMQS/GUID-2B8A3B5E-D319-4377-8B22-
8BB67DCC9885.htm#ADMQS0235

QUESTION 89
Which two are true about the execution of operating system scripts starting from Oracle Database 19c?
(Choose two.)

orainstRoot.sh can be executed automatically by the Database installer by using sudo or root credentials.

root.sh can be executed automatically by the Database Installer only if it is provided with root credentials.

The sudo password can be specified in a response file.

root.sh can be executed automatically by the Database installer only by using sudo credentials.

The sudo password must be specified in a response file.

The root password cannot be specified in a response file.

QUESTION 90
Which two are true about Oracle instance recovery? (Choose three.)

Recovery begins from the beginning of the CURRENT redo log group.

Recovery begins from the last checkpoint position that wascalculated by the Database Writer before instance failure.

Recovery begins from the start of any ACTIVE redo log group or the start of the CURRENT log group if no other group is ACTIVE.

Recovery reads redo until the end of the redo thread. SMON rollsback any dead transactions, and then the datanase is opened.

Recovery begins from the last checkpoint position that was recorded in the control file by the checkpoint process (CKPT).

Recovery reads redo until the end of the redo thread, and then opens the database. SMON then rolls back any dead transactions.

QUESTION 91
Which two are true about RMAN duplexed backup sets? (Choose two.)

They can be written only to disk.

They must be written to media.

They can be created by using the RMAN CONFIGURE command to specify duplexing before taking a backup.

They can be created only by using the COPIES option of a BACKUP command.

They can be written to media.

QUESTION 92
Which three are located by using environment variables?

the Optimal Flexible Architecture (OFA) compliant path to store Oracle software and configuration files.

the location of Oracle Net Services configuration files

the list of a disk group names to be mounted by an Oracle Automatic Storage Management (ASM) instance at startup

default directories for temporary files used by temporary tablespaces

the temporary disk space used by Oracle Installer during installation

the maximum number of database files that can be opened by a database instance

QUESTION 93
Examine this configuration:
* CDB1 is a container database.
* PDB1 and PDB2 are pluggable databases in CDB1.
You execute these commands successfully:

Which two are true? (Choose two.)

PDB1 and PDB2 are in MOUNT state.

Redo logs are opened.

PDB1 and PDB2 are in READ ONLY state.

CDB$ROOT is in MOUNT state.

PDB$SEED is in READ ONLY state.

QUESTION 94
Which four are true about a Recovery Manager (RMAN) duplication without a TARGET connection? (Choose four.)

The NOREDO clause must be used if the backups of the database being duplicated were taken when the database was in NOARCHIVELOG mode.

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

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

The NOREDO clause can be used if the backups of the database being duplicated were taken when the database was in ARCHIVELOG mode.

RMAN SBT-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 recovery catalog and the TARGET database is closed.

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

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

Reference:
http://oradb-srv.wlv.ac.uk/ora12c/RCMRF/rcmsynta020.htm

QUESTION 95
In a recent Automatic Workload Repository (AWR) report for your database, you notice a high number of buffer busy waits. The database consists of locally managed tablespaces with free list managed segments. On further investigation, you f ind that buffer busy waits is caused by contention on data blocks. Which option would you consider first to decrease the wait event immediately?

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

QUESTION 96
A container database (CDB) contains two pluggable databases PDB1 and PDB2.
The LOCAL_UNDO_ENABLED database property is set to FALSE in the CDB. Data file 24 of PDB2 was deleted and you need to restore and recover it.
The only RMAN backup that exists was created with the BACKUP DATABASE command while connected to CDB$ROOT.
Which three are true? (Choose three.)

Data file 24 can be recovered only while connected to PDB2.

Data file 24 can be restored and recovered while connected to CDB$ROOT.

Data file 24 can be restored only while connected toCDB$ROOT.

Data file 24 can be restored only while connected to PDB2.

Data file 24 can be recovered while connected to PDB2.

Data file 24 can be recovered while connected to CDB$ROOT.

QUESTION 97
Which two are true about Oracle Flashback features? (Choose two.)

FLASHBACK QUERY can retrieve REDO records from ONLINE and ARCHIVED REDO LOG files.

FLASHBACK VERSION QUERY can retrieve REDO records from ONLINE and ARCHIVED REDO LOG files.

FLASHBACK TABLE can undrop a column.

FLASHBACK DROP can undrop an index when undropping a table.

After a database is restored from flashback logs using the FLASHBACK DATABASE command, it is sometimes rolled forward using redo logs.

QUESTION 98
Which two are true about data movement between a non-CDB and a PDB using Data Pump?

Tablespaces are automatically created as needed while importing full exports in either a non-CDB or a PDB.

Oracle attempts to convert conventional database users to local users when moving schemas from a non-CDB to a PDB.

Moving data from a non-CDB to a PDB is only possible by using conventional export and import.

Oracle attempts to convert common users to conventional users when moving schemas from a PDB to a non-CDB.

Moving data from a PDB to a non-CDB is only possible by using transportable tablespace export and import.

A new PDB is automatically created when importing a non-CDB into a CDB.

QUESTION 99
Oracle Managed Files (OMF) is enabled in a CDB and this command is successfully executed:

Which three are true? (Choose three.)

Application PDBs that are subsequently created in the APP1application container will be cloned from APP1$SEED.

An application seed PDB is created for APP1.

An application root PDB is created for APP1.

A default service is created for the application root APP1.

Application PDBs that are subsequently created in the APP1 application container will be cloned from PDB$SEED.

APP1can never be unplugged.

QUESTION 100
Choose two. Which two are true about RMAN backups when using a media manager?

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.

QUESTION 101
You must transport the UNIVERSITY tablespace from one database to another.
The UNIVERSITY tablespace is currently open read/write.
The source and destination platforms have different endian formats. Examine this list of actions:
1.Make the UNIVERSITY tablespace read-only on the source system.
2.Export the UNIVERSITY tablespace metadata using EXPDP.
3.Convert the UNIVERSITY tablespace data fies to the destination platform format using RMAN on the source system.
4.Copy the UNIVERSITY tablespace data files to the destination system.
5.Copy the Data Pump dump set to the destination system.
6.Convert the UNIVERSITY tablespace data files to the destination platform format using RMAN on the destination system.
7.Import the UNIVERSITY tablespace metadata using IMPDP.
8.Make the UNIVERSITY tablespace read/write on the destination system.
Which is the minimum number of actions required, in the correct order, to transport the UNIVERSITY tablespace?

1, 2, 4, 5, 7, 8

1, 2, 4, 6, 7, 8

1, 2, 3, 4, 5, 7, 8

1, 2, 3, 4, 5, 6, 7, 8

2, 4, 5, 6, 7

QUESTION 102
Choose the best answer. Examine this configuration:
1. CDB1 is a container database.
2. There are several pluggable databases (PDBs) in CDB1.
5. Each PDB has several tables with referential integrity constraints.
6. FLASHBACK DATABASE is ON.
7. UNDO RETENTION GUARANTEE is enabled.
Multiple undesired multitable changes were made in all the PDBs.
Which method can be used to undo the changes using a single command?

restore and recover database

flashback transaction

flashback database

flashback table and transaction

flashback table

QUESTION 103
Choose three. Which three are true about a whole database backup?

It can be created only by using RMAN.

It always includes all data files, the current control file, the server parameter file, and archived redo logs.

It can be consistent.

It is the only possible backup type for a database in NOARCHIVELOG mode.

It can consist of either backup sets or image copies. F) It can be inconsistent.

QUESTION 104
Which three are true in Oracle 19c and later releases? (Choose three.)

If the password file location changes, then the new location is used automatically by the Oracle Server.

Schema Only accounts can be granted administrator privileges.

All the Oracle-supplied accounts are Schema Only accounts.

Privilege Analysis is included in Oracle Enterprise Edition and no longer requires Database Vault.

Unified Auditing can be configured to audit only events that are issued indirectly by an audited user.

Unified Auditing can be configured to audit only events that are issued directly by an audited user.

Reference:
https://mandysandhu.com/2018/04/30/oracle-database-18c-schema-only-accounts/

QUESTION 105
Choose the best answer. You want to transport the UNIVERSITY tablespace from one database to another. The UNIVERSITY tablespace is currently open read/write. The source and destination platforms have the same endian Examine this list of steps:. 1. Make the UNIVERSITY tablespace read-only on the source 2. Export the UNIVERSITY tablespace metadata using EXPDP. 3. Create a cross-platform backup set from the UNIVERSITY source system, using an RMAN command that includes the DATAPUMP clause. 4. Copy the cross-platform backup sets to the destination system. 5. Copy the Data Pump dump set from the source to the destination system. 6. Restore the cross-platform backup set on the destination system using an RMAN command that includes the DATAPUMP clause. 7. Import the UNIVERSITY tablespace metadata using IMPDP. 8. Make the UNIVERSITY tablespace read/write on the destination system. Which are the minimum number of steps required, in the correct order, to transport the UNIVERSITY tablespace?

3,4,6

2,3,4,5,6,7

1,3,4,6,8

1,2,3,4,5,6,7,8

QUESTION 106
A container database (CDB) contains two pluggable databases PDB1 and PDB2.
The LOCAL_UNDO_ENABLED database property is set to FALSE in the CDB. Data file 24 of PDB2 was deleted and you need to restore and recover it.
The only RMAN backup that exists was created with the BACKUP DATABASE command while connected to CDB$ROOT.
Which three are true? (Choose three.)

Data file 24 can be recovered only while connected to PDB2.

Data file 24 can be restored and recovered while connected to CDB$ROOT.

Data file 24 can be restored only while connected to CDB$ROOT.

Data file 24 can be restored only while connected to PDB2.

Data file 24 can be recovered while connected to PDB2.

Data file 24 can be recovered while connected to CDB$ROOT.

QUESTION 107
Examine this configuration:

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

For which databases will fixup scripts be created?

CDB1, PDB$SEED, PDB1, and PDB2

CDB1 and PDB$SEED only

CDB1, PDB1, and PDB2 only

PDB$SEED, PDB1, and PDB2 only

CDB1, PDB$SEED, and PDB1 only

QUESTION 108
Which two are true about the Oracle database tuning methodology?

The database instance memory should always be tuned before tuning any file systems.

Tuning activities should stop once the user is satisfied with performance.

The Oracle Database time model should be used to find the database and instance areas most in need of tuning.

SQL statements should always be tuned before tuning any file systems.

Tuning activities should stop once agreed service levels for performance have been met.

The alert log should be used to find the database and instance areas most in need of tuning.

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.)

ADDM can recommend shrinking the buffer cache.

ADDM can recommend extending the buffer cache.

By default, MMON creates an AWR snapshot every 30 minutes.

ADDM performs its analysis only when a DBA requests it.

By default, AWR snapshots are automatically purged after eight days.

AWR snapshots must be deleted when no longer required by ADDM.

QUESTION 110
Choose three. Which three are true about cloning databases into an existing CDB with RMAN?

A non-CDB can be cloned into a PDB.

A user with SYSDBA or SYSBKUP must be logged in with RMAN to CDB$ROOT when cloning a PDB.

Only one PDB can be cloned at a time.

Two or more PDBs can be cloned with the same command.

A user with SYSDBA or SYSBKUP must be logged in with RMAN to the non-CDB being cloned when cloning a non-CDB.

The target and auxiliary instance passwords must be the same.

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