[Q25-Q43] Pass Your 1Z0-082 Exam Easily With 100% Exam Passing Guarantee [2026]

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Pass Your 1Z0-082 Exam Easily With 100% Exam Passing Guarantee [2026]

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Oracle 1Z0-082 exam covers a wide range of topics related to database administration, such as database architecture, data management, security, performance tuning, and backup and recovery. Passing 1Z0-082 exam demonstrates an individual’s ability to perform essential tasks related to database administration and management.

Q25. 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?

Set OS_AUTHEN_PREFIX to OPS$

Have the OS administrator add KING to the OSDBA group

Grant DBA to KING

Unset REMOTE_LOGIN_PASSWORDFILE

Alter user KING to be IDENTIFIED EXTERNALLY

Q26. Which three statements are true about data block storage in an Oracle Database?

A block header contains a row directory pointing to all rows in the block.

An index block can contain row data.

Row data is stored starting at the end of the block.

A data block header is of a fixed length.

A table block must always contain row data.

Q27. Examine this command and some partial output:

Why does the DB01.abc.com service show unknown status?

The service DB01.abc.com is dynamically registered

The LOCAL_LISTENER database parameter is not set to a service name that refers to LISTENER_1

The service DB01.abc.com is statically registered

The listener is not listening on the default port 1521

The SID_LIST_LISTENER section is not contained in the LISTENER.ORA file

Q28. Which two statements are true about the configuration and use of UNDO_RETENTION with GURANTEED ? (Choose two.) RETENTION

UNDO_RETENTION specifies for how long Oracle attempts to keep expired and unexpired UNDO.

UNDO_RETENTION specifies how long all types of UNDO are retained.

Unexpired UNDO is always retained.

Active UNDO is always retained.

UNDO_RETENTION specifies for how long Oracle attempts to keep unexpired UNDO.

Q29. Which two statements are true about the WHERE and HAVING clauses in a SELECT statement?
(Choose two.)

Aggregating functions and columns used in HAVING clauses must be specified in the SELECT list of a query

WHERE and HAVING clauses can be used in the same statement only if applied to different table columns

The HAVING clause can be used with aggregating functions in subqueries

The WHERE clause can be used to exclude rows before dividing them into groups

The WHERE clause can be used to exclude rows after dividing them into groups

Q30. Which two are true about shrinking a segment online? (Choose two.)

It is not possible to shrink either indexes or Index Organized Tables (IOTs)

It always eliminates all migrated rows if any exist in the table

To shrink a table it must have a PRIMARY KEY constraint

To shrink a table it must have a UNIQUE KEY constraint

To shrink a table it must have row movement enabled

It must be in a tablespace that uses Automatic Segment Space Management (ASSM)

Q31. Which two statements are true about views used for viewing tablespace and datafile information?
(Choose two.)

Tablespace free space can be viewed in V$TABLESPACE

V$TABLESPACE displays information that is contained in the controlfile about tablespaces

V$TABLESPACE displays information about tablespaces contained in the data dictionary

Tablespace free space can be viewed in DBA_TABLESPACES

A datafile can be renamed when the database is in MOUNT state and the new file name is displayed when querying DBA_DATA_FILES after the database is opened

Q32. Which two statements are true about the PMON background process? (Choose two.)

It registers database services with all local and remote listeners known to the database instance

It frees resources held by abnormally terminated processes

It records checkpoint information in the control file

It frees unused temporary segments

It kills sessions that exceed idle time

Q33. Which two statements are true about trace files produced by the Oracle Database server? (Choose two.)

They can be written by server processes

Trace files are written to the Fast Recovery Area (FRA)

They can be written by background processes

All trace files contain error information that require contacting Oracle Support

Trace file names are based on the database name concatenated with a sequential number

Q34. Examine this command:
CREATE UNDO TABLESPACE undotbs01
DATAFILE ‘undotbs_01.dbf’
SIZE 100M
AUTOEXTEND ON;
Which two actions must you take to ensure UNDOTBS01 is used as the default UNDO tablespace? (Choose two.)

Add the SEGMENT SPACE MANAGEMENT AUTO clause

Set UNDO_TABLESPACE to UNDOTBS01

Add the NOLOGGING clause

Make certain that the database operates in automatic undo management mode

Add the ONLINE clause

Q35. Which three statements are true about connection strings and service names used to connect to an Oracle database instance?

A single database instance can support connections for multiple service names.

A service name is created by a listener.

A single connection string can refer to multiple database instances.

A connection string including a service name must be defined in the cnsnames.ora file.

A connection string must include the SID of a database Instance.

Different connection strings in the same tnsnames.ora file can contain the same service name, host and port parameters.

Q36. 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.)

ORDER BY “Last Name”

ORDER BY 2, 1

ORDER BY 2, cust_id

ORDER BY CUST_NO

ORDER BY “CUST_NO”

Q37. A database is configured to use automatic undo management with temporary undo enabled.
An UPDATE is executed on a temporary table.
Where is the UNDO stored?

in the undo tablespace

in the SYSAUX tablespace

in the SGA

in the PGA

in the temporary tablespace

Q38. Which two statements are true about single row functions? (Choose two.)

MOD : returns the quotient of a division operation

FLOOR : returns the smallest integer greater than or equal to a specified number

TRUNC : can be used to combine any number of values

CONCAT : can be used to combine any number of values

CEIL : can be used for positive and negative numbers

Q39. Which two statements are true about the DUAL table? (Choose two.)

It can be accessed only by the SYS user

It consists of a single row and single column of VARCHAR2 data type

It can display multiple rows but only a single column

It can be used to display only constants or pseudo columns

It can be accessed by any user who has the SELECT privilege in any schema

It can display multiple rows and columns

Q40. Which two are true about shrinking a segment online? (Choose two.)

It is not possible to shrink either indexes or Index Organized Tables (IOTs)

It always eliminates all migrated rows if any exist in the table

To shrink a table it must have a PRIMARY KEY constraint

To shrink a table it must have a UNIQUE KEY constraint

To shrink a table it must have row movement enabled

It must be in a tablespace that uses Automatic Segment Space Management (ASSM)

Q41. Which three statements are true about using SQL*Plus?

It has its own commands that are separate from any SQL statements.

It must be downloaded from the Oracle Technology Network (OTN).

It can run scripts entered at the SQL prompt.

It can run Recovery Manager (RMAN) commands.

It has both command-line and graphical user interfaces (GUI).

It can run scripts passed to it by a shell script.

Q42. Your database instance was shut down normally and then started in NOMOUNT state. You then execute this command:
ALTER DATABASE MOUNT;
Which two actions are performed? (Choose two.)

The online redo logs are opened

The online data files are opened

The alert log records the execution details

The Oracle background processes are started

The initialization parameter file is read

The control file is read

Q43. Which three are types of segments in an Oracle Database? (Choose three.)

undo

index

stored procedures

sequences

tables