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Oracle 1Z0-082 Exam Syllabus Topics:

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

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Oracle Database Administration I Sample Questions (Q65-Q70):

NEW QUESTION # 65
In one of your databases, user KING is:
1. Not a DBA user
2. An operating system (OS) user
Examine this command and its output:

What must you do so that KING is authenticated by the OS when connecting to the database instance?

A. Have the OS administrator add KING to the OSDBA group
B. Alter user KING to be IDENTIFIED EXTERNALLY
C. Grant DBA to KING
D. Set OS_AUTHENT_PREFIX to OPS$
E. Unset REMOTE_LOGIN_PASSWORDFILE

Answer: E

NEW QUESTION # 66
In one of your databases, user KING is:
1. Not a DBA user
2. An operating system (OS) user
Examine this command and its output:

What must you do so that KING is authenticated by the OS when connecting to the database instance?

A. Set OS_AUTHENT_PREFIX to OPS$
B. Have the OS administrator add KING to the OSDBA group
C. Alter user KING to be IDENTIFIED EXTERNALLY
D. Unset REMOTE_LOGIN_PASSWORDFILE
E. Grant DBA to KING

Answer: A

Explanation:
https://oracle-base.com/articles/misc/os-authentication

NEW QUESTION # 67
Which two statements are true about date/time functions in a session where NLS_DATE_FORMAT is set to DD-MON-YYYY HH24:MI:SS? (Choose two.)

A. SYSDATE can be used in expressions only if the default date format is DD-MON-RR
B. CURRENT_TIMESTAMP returns the same date as CURRENT_DATE
C. CURRENT_DATE returns the current date and time as per the session time zone
D. SYSDATE and CURRENT_DATE return the current date and time set for the operating system of the database server
E. CURRENT_TIMESTAMP returns the same date and time as SYSDATE with additional details of fractional seconds
F. SYSDATE can be queried only from the DUAL table

Answer: C,F

NEW QUESTION # 68
Which two statements are true about the rules of precedence for operators? (Choose two.)

A. Arithmetic operators with equal precedence are evaluated from left to right within an expression
B. The concatenation operator | | is always evaluated before addition and subtraction in an expression
C. The + binary operator has the highest precedence in an expression in a SQL statement
D. NULLS influence the precedence of operators in an expression
E. Multiple parentheses can be used to override the default precedence of operators in an expression

Answer: A,E

Explanation:
Reference:
https://docs.oracle.com/cd/B19306_01/server.102/b14200/operators001.htm
https://docs.oracle.com/cd/A87860_01/doc/server.817/a85397/operator.htm Precedence is the order in which Oracle evaluates different operators in the same expression. When evaluating an expression containing multiple operators, Oracle evaluates operators with higher precedence before evaluating those with lower precedence. Oracle evaluates operators with equal precedence from left to right within an expression.

NEW QUESTION # 69
Which two statements are true about the PMON background process? (Choose two.)

A. It frees resources held by abnormally terminated processes
B. It kills sessions that exceed idle time
C. It frees unused temporary segments
D. It registers database services with all local and remote listeners known to the database instance
E. It records checkpoint information in the control file

Answer: A,B

Explanation:
Reference:
https://docs.oracle.com/cd/B19306_01/server.102/b14220/process.htm
* Performs process recovery when a user process fails - Cleans up the database buffer cache - Frees resources that are used by the user process * Monitors sessions for idle session timeout

NEW QUESTION # 70
......

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