1Z0-083試験の準備方法｜更新する1Z0-083資格勉強試験｜効果的なOracle Database Administration II最新対策問題

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Oracle 1Z0-083 Exam Syllabus Topics:

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

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試験の準備方法-信頼的な1Z0-083資格勉強試験-ユニークな1Z0-083最新対策問題

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Oracle Database Administration II 認定 1Z0-083 試験問題 (Q115-Q120):

質問 # 115
Which three are true about Optimizer Statistics Advisor? (Choose three.)

A. It can recommend changes to improve the statistics gathering process.
B. It always analyzes all schemas in the database.
C. It runs automatically every night by default.
D. It is part of the DBMS_STATS package.
E. It is part of the DBMS_ADVISOR package.
F. It can be run only manually.

正解：A、B、D

質問 # 116
Examine this output:

Which two are true? (Choose two.)

A. PDB2 is guaranteed at least 25% of the available parallel execution processes if there is enough demand.
B. Any PDB not specified in the plan will be unable to execute statements in parallel.
C. Any PDB not specified in the plan will be able to use a maximum of 16.5% of the available system resources.
D. PDB1 is always limited to 40% of the available system resources regardless of demand.
E. PDB3 can use all available parallel execution processes at times.
F. PDB3 is guaranteed to receive at least 20% of the available system resources if there is enough demand.

正解：B、F

質問 # 117
Automatic Shared Memory Management is disabled for one of your database instances.
Some SQL statements perform poorly due to excessive hard parse activity, thereby degrading performance.
What would be your next step?

A. Run the Memory Advisor for the shared pool.
B. Run the Memory Advisor for the System Global Area.
C. Run the SQL Access Advisor.
D. Run the Memory Advisor for the Program Global Area.
E. Run the SQL Tunning Advisor.

正解：A

解説：
https://blogs.oracle.com/oraclemagazine/using-database-advisors
The shared pool advisor provides information about the estimated parse time in the shared pool for different pool sizes, the buffer cache advisor provides information about physical reads and time for the cache size, and the PGA advisor provides information about cache hit percentage against PGA target memory size.

質問 # 118
Which two are true about server-generated alerts? (Choose two.)

A. Stateless alerts are automatically cleared.
B. Stateless alerts can be cleared manually.
C. Stateless alerts can be purged manually from the alert history.
D. Stateful alerts must be created by a DBA after resolving the problem.
E. Stateful alerts are purged automatically from the alert history.

正解：B、D

解説：
Explanation/Reference: https://jameshuangsj.wordpress.com/2019/12/01/clears-stateless-alerts-in-oem-by-using-emcli/

質問 # 119
Which three are true? (Choose three.)

A. Unified auditing can be automatically synchronized to all application PDBs in an application container.
B. Application-common OLS policies can be created in an application root inside an install/patch BEGIN-END block.
C. Virtual Private Database (VPD) policies on objects in an application root are automatically synchronized with all application PDBs contained in the application container.
D. Application-common Transparent Security Data Protection (TSDP) policies can be created only within an application install/patch BEGIN-END block.
E. Application-common Oracle Label Security (OLS) policies cannot be created in an application root outside an install/patch BEGIN-END block.
F. Application-common TSDP policies are always container specific.
G. Fine-grained auditing (FGA) policies in an application root are automatically synchronized to all application PDBs contained in the application container.

正解：A、C、E

質問 # 120
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