1Z0-083専門知識内容、1Z0-083サンプル問題集

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Oracle 1Z0-083 Exam Syllabus Topics:

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

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Oracle Database Administration II 認定 1Z0-083 試験問題 (Q220-Q225):

質問 # 220
A database is configured in ARCHIVELOG mode.
Full RMAN backups are taken and no backup to trace has been taken of the control file. A media failure has occurred.
In which two scenarios is complete recovery possible? (Choose two.)

正解：A、B


質問 # 221
Which two statements are true about encrypted backups performed by using RMAN?

正解：A、D


質問 # 222
Which two are true about duplicating pluggable databases (PDBs) with RMAN? (Choose two.)

正解：A、D


質問 # 223
Which three actions are performed by Database Upgrade Assistant (DBUA)? (Choose three.)

正解：A、B、D

解説：
https://docs.oracle.com/en/database/oracle/oracle-database/19/upgrd/upgrading-oracle- database-upgrade-assistant-dbua.html#GUID-8BDDF859-1638-45AC-824D-78FC8154847C
A). False. Only "...This option recompiles all INVALID PL/SQL modules after the upgrade is complete
B). True. "...The following is a list of examples of DBUA checks, and of actions that DBUA performs on the database: Empty database recycle bin..."
C). True. "... DBUA runs the Pre-Upgrade Information Tool as part of the prerequisite checks it performs before starting the upgrade..."
D). False. Only true for option Partial Backup "...Select among the following RMAN backup options:... Create a New Partial Offline RMAN Backup with User Tablespace. If you select this option, then user tablespaces are placed into read-only mode during the upgrade...."
E). False. These elements are not mentioned in the description of the DBUA process.
F). True. DBUA only continues if the check phase verifies that it can increase the size of tablespaces "... uses the following logic to modify or create new required tablespaces..."


質問 # 224
Which two are true about creating pluggable databases (PDBs) using snapshots in Oracle 19c and later releases? (Choose two.)

正解：B、E

解説：
G:
https://docs.oracle.com/en/database/oracle/oracle-database/18/multi/cloning-a-pdb.html#GUID- F26C8A55-2465-475A-905A-83BD2E68AE6E and then create a SNAPSHOT COPY PDB from the standalone PDB.
C:
Storage requirements depend on the setting of the CLONEDB initialization parameter:
CLONEDB=FALSE
The underlying file system for the source PDB files must support storage snapshots. Such file systems include Oracle Automatic Storage Management Cluster File System (Oracle ACFS) and Direct NFS Client storage. Oracle Exadata supports snapshot copy functionality on ASM configured with sparse ASM grid disks.
CLONEDB=TRUE
The underlying file system for the source PDB files can be any local file system, network file system (NFS), or clustered file system that has Direct NFS enabled and supports sparse files.
Most UNIX systems meet these requirements, including Oracle ACFS and ZFS. However, when CLONEDB=TRUE, the source PDB must remain in open read-only mode when clones exist.


質問 # 225
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