最新Oracle 1Z1-082題庫資訊 & 1Z1-082認證考試解析

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Oracle 1Z1-082 Exam Syllabus Topics:

Section	Objectives
Topic 1: Database Administration	- Managing database objects - Managing users and privileges
Topic 2: Monitoring and Performance Management	- Database monitoring tools - Performance tuning basics
Topic 3: Database Installation and Configuration	- Creating and configuring a database - Installing Oracle Database software
Topic 4: Oracle Database Architecture	- Physical database structure - Database instance and memory structures
Topic 5: Multitenant Architecture	- Managing pluggable databases - Container and pluggable databases (CDB/PDB)
Topic 6: Database Storage Structures	- Control files and redo logs - Tablespaces and datafiles
Topic 7: Backup and Recovery Concepts	- RMAN fundamentals - Backup and restore operations

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最新的 Oracle Database 19c 1Z1-082 免費考試真題 (Q22-Q27):

問題 #22
Which two statements are true about trace files produced by the Oracle Database server? (Choose two.)

A. They can be written by background processes
B. Trace files are written to the Fast Recovery Area (FRA)
C. They can be written by server processes
D. Trace file names are based on the database name concatenated with a sequential number
E. All trace files contain error information that require contacting Oracle Support

答案：A,C

解題說明：
Reference:
https://gerardnico.com/db/oracle/trace_file
https://docs.oracle.com/html/E25494_01/monitoring001.htm
Each server and background process can write to an associated trace file. When an internal error is detected by a process, it dumps information about the error to its trace file. Some of the information written to a trace file is intended for the database administrator, and other information is for Oracle Support Services. Trace file information is also used to tune applications and instances.

問題 #23
Which four account management capabilities can be configured using Oracle profiles? (Choose four.)

A. the number of days for which an account is locked after the configured number of login attempts has been reached
B. the ability to prevent a password from ever being reused
C. the number of password changes required within a period of time before a password can be reused
D. the maximum number of sessions permitted for a user before the account is locked
E. the number of hours for which an account is locked after the configured number of login attempts has been reached
F. the number of days for which an account may be inactive before it is locked
G. the maximum amount of CPU time allowed for a user's sessions before their account is locked

答案：A,B,C,E

問題 #24
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 generates execution plans for SQL statements based on relevant schema objects, system and session parameters, and information found in the Data Dictionary.
C. It updates stale object statistics in the Data Dictionary.
D. It can optimize only SELECT statements.
E. It determines the optimal table join order and method.
F. It will only generate SQL Plan Directives specific to a given SQL statement.

答案：B,D,E

問題 #25
Which two are true about a SQL statement using SET operators such as UNION? (Choose two.)

A. The data type of each column returned by the second query must exactly match the data type of the corresponding column returned by the first query.
B. The names and number of columns must be identical for all SELECT statements in the query.
C. The data type of each column returned by the second query must be implicitly convertible to the data type of the corresponding column returned by the first query.
D. The data type group of each column returned by the second query must match the data type of the corresponding column returned by the first query.
E. The number, but not names, of columns must be identical for all SELECT statements in the query.

答案：A,C

問題 #26
Examine this SQL statement:
SELECT cust_id, cust_last_name "Last Name"
FROM customers
WHERE country_id = 10
UNION
SELECT cust_id CUST_NO, cust_last_name
FROM customers
WHERE country_id = 30
Identify three ORDER BY clauses, any one of which can complete the query successfully.
(Choose three.)

A. ORDER BY 2, cust_id
B. ORDER BY 2, 1
C. ORDER BY CUST_NO
D. ORDER BY "Last Name"
E. ORDER BY "CUST_NO"

答案：A,B,D

問題 #27
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