Echte und neueste 1Z0-083 Fragen und Antworten der Oracle 1Z0-083 Zertifizierungsprüfung

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Oracle 1Z0-083 Exam Syllabus Topics:

Section	Objectives
Managing CDBs and PDBs	- PDB Lifecycle Operations 1. Refreshable PDBs 2. Relocate PDBs 3. Snapshot copy PDBs - Multitenant Administration 1. Manage application containers 2. Open and close PDBs 3. Resource management
Database Upgrades and Patching	- Upgrade Operations 1. Database upgrade planning 2. Post-upgrade validation 3. Upgrade execution - Patch Management 1. Apply Release Updates 2. Rollback procedures 3. Manage Oracle patches
Backup and Recovery	- Restore and Recovery 1. Recover CDBs and PDBs 2. Perform complete recovery 3. Perform incomplete recovery - Flashback Technologies 1. Flashback Database 2. Flashback Table 3. Flashback Drop - RMAN Configuration 1. Backup databases and archived logs 2. Configure RMAN settings 3. Manage backup retention policies
Database Duplication and Migration	- Transport and Migration 1. Data Pump operations 2. Transportable tablespaces - Database Duplication 1. Duplicate databases using RMAN 2. Active database duplication
Creating CDBs and Regular PDBs	- Create and manage PDBs 1. Clone pluggable databases 2. Plug and unplug PDBs 3. Create PDBs from seed databases - Configure and create a CDB 1. Manage CDB architecture 2. Create container databases 3. Configure initialization parameters
Performance Monitoring and Tuning	- Performance Monitoring 1. Automatic Database Diagnostic Monitor 2. Performance Hub 3. Automatic Workload Repository - SQL Tuning 1. SQL Tuning Advisor 2. SQL execution plans 3. SQL performance analysis - Memory and Resource Optimization 1. Wait event analysis 2. Resource Manager 3. Memory management
Security in Multitenant Databases	- Auditing and Security 1. Unified auditing 2. Security policies - User and Privilege Management 1. Common users and local users 2. Roles and privileges

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Oracle Database Administration II 1Z0-083 Prüfungsfragen mit Lösungen (Q31-Q36):

31. Frage
Your container database, CDB1, has an application container, HR_ROOT, with an application PDB, HR_PDB1.
You have the required privilege to clone HR_PDB1to 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_PDB1 clone created in CDB2 will be in mount state when cloning ends.

Antwort: C,E

Begründung:
After you create the application PDB, it is in mounted mode, and its status is NEW.
https://docs.oracle.com/en/database/oracle/oracle-database/21/multi/creating-application- pdb.html#GUID-88E61123-F651-47D7-9977-B589268EBD29

32. Frage
Which two are true about RMAN backups when using a media manager? (Choose two.)

A. A media manager is required to create RMAN proxy copies.
B. A media manager is required to create RMAN image copies.
C. A media manager always writes RMAN requested backups to tape.
D. By default, a request for a proxy copy may result in a backup set being created.
E. The media manager layer (MML) routines provided by Oracle support any vendors' media management products.

Antwort: A,D

Begründung:
https://docs.oracle.com/cd/E11882_01/backup.112/e10643/rcmsynta007.htm#RCMRF107 A is incorrect - zdlra backups are sbt backups but not written to tape always E is incorrect - Not all are supported B If the media manager cannot proxy copy the file, then RMAN backs up the file as if the PROXY option had not been used From: https://docs.oracle.com/cd/E11882_01/backup.112/e10642/rcmcncpt.htm#BRADV89487

33. Frage
You are managing this configuration:
1. CDB1is a container database.
2. PDB1and PDB2are two pluggable databases in CDB1.
3. USER1.EMPis a table in PDB1and USER2.DEPTis a table in PDB2.
CDB1user SYSexecutes these commands after connecting successfully to PDB2:

Which two are true? (Choose two.)

A. The insert on USER2.DEPT is a recursive autonomous transaction by the child session and is committed.
B. The inserts on USER1.EMP were rolled back when the session connected to PDB2.
C. The insert on USER2.DEPT fails because of the active transaction in the parent container.
D. The inserts on USER1.EMP remain uncommitted when the session connected to PDB2.
E. The inserts on USER1.EMP were committed when the session inserted a row into USER2.DEPT.
F. The insert on USER2.DEPT is uncommitted.
G. The inserts on USER1.EMP were committed when the session connected to PDB2.

Antwort: C,D

Begründung:
other session to check any transaction
Version 19.5.0.0.0
SQL>
SQL> alter session set container=ELC20MIG;
Session altered.
SQL> select * from user1.emp;
no rows selected

34. Frage
RMAN has just been connected to a target database and the recovery catalog database.
In which two cases would an automatic partial resynchronization occur between this target database's control file and the RMAN recovery catalog?

A. When a new data file is added to a tablespace in a registered target database.
B. When any control file metadata for archive log backups or image copies is now older than CONTROL_FILE_RECORD_KEEP_TIME.
C. When the target is first registered.
D. When a backup of the current SPFILE is created.
E. When any control file metadata for data file backups or image copies is now older than CONTROL_FILE_RECORD_KEEP_TIME.

Antwort: A,C

Begründung:
In a full resynchronization, RMAN updates all changed records, including those for the database schema. RMAN performs a full resynchronization after structural changes to database (adding or dropping database files, creating new incarnation, and so on) or after changes to the RMAN persistent configuration.
When a database is registered with a recovery catalog for the first time a full catalog synchronization is performed
https://docs.oracle.com/en/database/oracle/oracle-database/19/bradv/managing-recovery- catalog.html#GUID-6B077FE7-8E10-4603-8FDB-CAE3357E85C9

35. Frage
Which two are true about data movement between a non-CDB and a PDB using Data Pump?

A. Oracle attempts to convert conventional database users to local users when moving schemas from a non-CDB to a PDB.
B. Moving data from a PDB to a non-CDB is only possible by using transportable tablespace export and import.
C. Oracle attempts to convert common users to conventional users when moving schemas from a PDB to a non-CDB.
D. A new PDB is automatically created when importing a non-CDB into a CDB.
E. Tablespaces are automatically created as needed while importing full exports in either a non-CDB or a PDB.
F. Moving data from a non-CDB to a PDB is only possible by using conventional export and import.

Antwort: D,E

36. Frage
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