Oracle 1Z0-083日本語参考 & 1Z0-083日本語版

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Oracle 1Z0-083 Exam Overview:

Certification Vendor:	Oracle
Exam Name:	Oracle Database Administration II
Exam Number:	1Z0-083
Exam Duration:	120 minutes
Available Languages:	English
Real Exam Qty:	68
Passing Score:	57%
Exam Price:	USD 245
Certificate Validity Period:	Version-specific
Exam Format:	Multiple Choice, Multiple Select
Related Certifications:	Oracle Database Administration Certified Associate Oracle Database Administration 2019 Certified Professional
Sample Questions:	Oracle 1Z0-083 Sample Questions
Exam Way:	Pearson VUE testing center or Oracle online proctored exam.
Pre Condition:	Oracle Database Administration Certified Associate credential is recommended before pursuing the Professional certification.
Official Syllabus URL:	https://education.oracle.com/oracle-database-administration-ii/pexam_1Z0-083

>> Oracle 1Z0-083日本語参考 <<

1Z0-083日本語版 & 1Z0-083資格取得

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試験を受けるためには、候補者は基本的なデータベース管理の概念と実践についての堅固な理解、およびOracle Databaseテクノロジーでの作業経験が必要です。また、Oracle Database Administration I試験（1Z0-082）を修了しているか、同等の知識と経験を持っている必要があります。試験は80問の多肢選択問題から成り、制限時間は120分です。

Oracle Database Administration II 認定 1Z0-083 試験問題 (Q229-Q234):

質問 # 229
Which two are true about monitoring waits for sessions and services?

A. v$service_event displays wait counts for every wait event whether waited on or not, for each service.
B. v$session_event displays all waits for all past and existing sessions if the wait has occurred at least once for a session.
C. v$session_wait_class displays waits broken down by wait class only for waiting sessions.
D. v$session_wait and v$session both contain details of the event on which a non-waiting session last waited.
E. v$session_wait and v$session both contain details of the event on which a waiting session is currently waiting.

正解：A、B

質問 # 230
Which three actions are performed by the Oracle Preinstallation RPM, oracle-database- server-xxxx-preinstall, for Oracle Grid Infrastructure, where xxxx is the Oracle version and release? (Choose three.)

A. creating the OSDBA (dba) group
B. creating the oracle OS user
C. creating the grid OS user
D. creating thte oraInventory (oinstall) group
E. performing checks to ensure minimum configuration requirements for Oracle Grid Infrastructure are met
F. configuring the OS for Oracle Automatic Storage Management shared storage access

正解：A、B、D

解説：
When installed, the Oracle Preinstallation RPM does the following:
Automatically downloads and installs any additional RPM packages needed for installing Oracle Grid Infrastructure and Oracle Database, and resolves any dependencies Creates an oracle user, and creates the oraInventory (oinstall) and OSDBA (dba) groups for that user As needed, sets sysctl.conf settings, system startup parameters, and driver parameters to values based on recommendations from the Oracle Preinstallation RPM program Sets hard and soft resource limits Sets other recommended parameters, depending on your kernel version Sets numa=off in the kernel for Linux x86_64 machines.
https://docs.oracle.com/cd/E11882_01/install.112/e41961/prelinux.htm#CWLIN172

質問 # 231
After implementing full Oracle Data Redaction, you change the default value for the NUMBER data type as follows: SQL> select number_value from REDACTION_VALUES_FOR_TYPE_FULL; NUMBER_VALUE ------------0 SQL> exec DBMS_REDACT.UPDATE_FULL_REDACTION_VALUES(-1); SQL> select number_value from REDACTION_VALUES_FOR_TYPE_FULL; NUMBER_VALUE -------------1 After changing the value, you notice that FULL redaction continues to redact numeric data with zero.What must you do to activate the new default value for numeric full redaction?

A. Re-createredactionpoliciesthatuseFULLdataredaction.
B. Restart the database instance. Correct
C. Flushthesharedpool.
D. Re-connect the sessions that access objects with redaction policies defined on them.
E. Re-enableredactionpoliciesthatuseFULLdataredaction.

正解：B

質問 # 232
Which three are true about the Oracle Optimizer? (Choose three.)

A. It can re-optimize execution plans after previous executions detect suboptimal plans.
B. It can only use SQL Plan Directives tied to the SQL statement for which a plan is being generated.
C. It updates stale object statistics in the Data Dictionary.
D. It obeys all hints.
E. It considers the filters in WHERE clauses when generating execution plans for SQL statements.
F. It considers object statistics when generating execution plans for SQL statements.

正解：B、C、F

質問 # 233
Examine these queries and their output:

An online RMAN backup of the CDB was taken an hour before Restore Point R1was created.
You want to recover PDB1 to Restore Point R1.
How do you achieve this?

A. Execute FLASHBACK PLUGGABLE DATABASE PDB1 TO RESTORE POINT R1 by using SQL while connected to PDB1.
B. Execute FLASHBACK PLUGGABLE DATABASE PDB1 TO RESTORE POINT R1 by using RMAN while connected to CDB$ROOT.
C. Execute FLASHBACK PLUGGABLE DATABASE PDB1 TO RESTORE POINT R1 by using SQL while connected to CDB$ROOT.
D. Execute FLASHBACK PLUGGABLE DATABASE PDB1 TO RESTORE POINT R1 by using RMAN while connected to PDB1.
E. This cannot be done due to the lack of a clean restore point.

正解：B

解説：
In 19c, you can actually flashback a PDB from a restore point even if it's not clean:
When using restore points, you can perform a flashback database operation either to a CDB restore point, PDB restore point, PDB clean restore point, or PDB guaranteed restore point.
https://docs.oracle.com/en/database/oracle/oracle-database/19/bradv/rman-performing- flashback-dbpitr.html#GUID-C1215E86-9A7B-4EC9-9777-2A18BD627394

質問 # 234
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