一流的1Z1-082套裝擁有模擬真實考試環境與場境的軟件VCE版本＆有用的1Z1-082：Oracle Database Administration I

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Oracle 1Z1-082 Exam Syllabus Topics:

Section	Objectives
Database Storage Structures	- Control files and redo logs - Tablespaces and datafiles
Database Installation and Configuration	- Installing Oracle Database software - Creating and configuring a database
Monitoring and Performance Management	- Performance tuning basics - Database monitoring tools
Database Administration	- Managing database objects - Managing users and privileges
Oracle Database Architecture	- Database instance and memory structures - Physical database structure
Multitenant Architecture	- Managing pluggable databases - Container and pluggable databases (CDB/PDB)
Backup and Recovery Concepts	- Backup and restore operations - RMAN fundamentals

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專業的Oracle 1Z1-082套裝是行業領先材料＆值得信賴的1Z1-082：Oracle Database Administration I

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最新的 Oracle Database 19c 1Z1-082 免費考試真題 (Q72-Q77):

問題 #72
Examine this description of the books table containing 100 rows:

Now examine this sequence of statements Issued In a new session;

Examine this description of the books table containing 100 rows:
Which three statements are true?

A. The first rollback command restores the 100 rows that were in the table originally.
B. The second rollback command restores the 100 rows that were in the table originally.
C. The second rollback command restores the row that was inserted.
D. The second rollback command rolls back the rollback to savepoint a command.
E. The first RollBack command restores the row that was inserted.
F. The first rollback command leaves the inserted row locked.
G. The first rollback command leaves the table's 100 original rows locked.

答案：C,D,E

問題 #73
Which two are true about complete and incomplete recovery? (Choose two.)

A. Incomplete recovery is possible only when the database is open.
B. Uncommitted transactions will be rolled back after incomplete recovery completes.
C. Uncommitted transactions will be rolled back after complete recovery completes.
D. The database must have FLASHBACK enabled in order to perform incomplete recovery.
E. Only incremental backups can be used to roll forward the database while performing complete recovery.

答案：C,E

問題 #74
Which three statements are true about inner and outer joins? (Choose three.)

A. A full outer join returns matched and unmatched rows
B. Outer joins can be used when there are multiple join conditions on two tables
C. An inner join returns matched rows
D. Outer joins can only be used between two tables per query
E. A full outer join must use Oracle syntax
F. A left or right outer join returns only unmatched rows

答案：A,C,F

解題說明：
Explanation/Reference: https://www.studytonight.com/dbms/joining-in-sql.php

問題 #75
What is true about non-equijoin statement performance? (Choose two.)

A. The Oracle join syntax performs better than the SQL:1999 compliant ANSI join syntax
B. The BETWEEN condition always performs better than using the >= and <= conditions
C. The BETWEEN condition always performs less well than using the >= and <= conditions
D. The join syntax used makes no difference to performance
E. Table aliases can improve performance

答案：A,E

問題 #76
Which two statements are true about the DUAL table? (Choose two.)

A. It can be accessed only by the SYS user
B. It can display multiple rows but only a single column
C. It can be accessed by any user who has the SELECT privilege in any schema
D. It can be used to display only constants or pseudo columns
E. It consists of a single row and single column of VARCHAR2 data type
F. It can display multiple rows and columns

答案：A,E

解題說明：
https://en.wikipedia.org/wiki/DUAL_table

問題 #77
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