1Z0-083合格対策、1Z0-083関連日本語内容

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Oracle 1Z0-083 Exam Syllabus Topics:

Section	Objectives
Topic 1: Database Architecture and Administration	- Oracle Database architecture components - Multitenant container database (CDB/PDB) concepts
Topic 2: Database Backup and Recovery	- RMAN configuration and backup strategies - Database recovery techniques
Topic 3: Security Management	- User management and privileges - Database auditing and encryption
Topic 4: Performance Management	- Automatic Workload Repository (AWR) and diagnostics - SQL performance tuning
Topic 5: Storage and Space Management	- Segment management - Tablespaces and datafiles

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1Z0-083関連日本語内容 & 1Z0-083日本語版対応参考書

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Oracle Database Administration II 認定 1Z0-083 試験問題 (Q77-Q82):

質問 # 77
You create a table with the PERIOD FOR clause to enable the use of the Temporal Validity feature of Oracle Database 12c. Examine the table definition: create table employees (empno number, salary number, deptid number, name varchar2(100), period for employee_time); Which three statements are true concerning the use of the Valid Time Temporal feature for the EMPLOYEES table?

A. Thesamestatementmayfilteronbothtransactiontimeandvalidtemporaltimebyusingthe AS OF TIMESTAMP and PERIOD FOR clauses.
B. The valid time columns are visible by default when the table is described.
C. The valid time columns employee_time_start and employee_time_end are automatically created.
D. The valid time columns are not populated by the Oracle Server automatically.
E. Setting the session valid time using DBMS_FLASHBACK_ARCHIVE.ENABLE_AT_VALID_TIME sets the visibility for data manipulation language (DML), data definition language (DDL), and queries performed by the session.

正解：A、C、D

質問 # 78
Examine this configuration:
1. CDB1is a container database.
2. PDB1 and PDB2are pluggable databases in CDB1.
3. PDB1 and PDB2are OPENin READ WRITEmode.
You execute these commands successfully:

Which two are true? (Choose two.)

A. Uncommitted transactions in PDB1have been rolled back.
B. Uncommitted transactions in CDB1and PDB1have been rolled back.
C. CDB1is shut down.
D. PDB1is closed.
E. CDB1is in MOUNT state

正解：D、E

質問 # 79
Which two are true about server-generated alerts? (Choose two.)

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

正解：C、D

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

質問 # 80
Which three are true about RMAN persistent configuration settings, administration, and their effects? (Choose three.)

A. Backups written to the fast recovery area (FRA) that are oboslete based on the redundancy retention policy can be deleted automatically to free space.
B. A target database's persistent RMAN configuration settings are always synchronized automatically with the RMAN catalog.
C. Backup older than the recovery window retention policy are always deleted automatically if the backup location has insufficient space.
D. The RMAN SHOW ALL command displays only settings with nondefault values.
E. A target database's persistent RMAN configuration settings are always stored in the target's control file
F. The V$RMAN_CONFIGURATION view displays only settings with valuesthat have been modified. G)A DBA must specify either a redundancy retention policy or a recovery window retention policy.

正解：A、E、F

質問 # 81
Which two are true about RMAN encryption? (Choose two.)

A. RMAN encryption keys are stored in a database keystore.
B. Dual-mode encrypted backups can be restored only if both the password and the keystore used for encryption are available.
C. Password encryption can be persistently configured using the CONFIGURE ENCRYPTIONcommand.
D. The SET ENCRYPTIONcommand overrides encryption settings specified by the CONFIGURE ENCRYPTIONcommand.
E. RMAN can encrypt the Oracle Database password file.

正解：B、D

解説：
Explanation/Reference: https://docs.oracle.com/database/121/BRADV/rcmconfa.htm#BRADV89476

質問 # 82
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