Get 2026 Updated Free Oracle 1Z1-082 Exam Questions & Answer [Q41-Q59]

September 9, 2026 1Z1-082, Oracle 0 Comments

Get 2026 Updated Free Oracle 1Z1-082 Exam Questions & Answer [Q41-Q59]

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Get 2026 Updated Free Oracle 1Z1-082 Exam Questions and Answer

1Z1-082 Dumps PDF and Test Engine Exam Questions

Oracle 1Z0-082 exam, also known as the Oracle Database Administration I exam, is a certification exam aimed at IT professionals seeking to become certified Oracle Database Administrators. 1Z1-082 exam measures the candidate’s knowledge and skills in basic database concepts, installation and configuration of the Oracle database, management of database instances, storage structures and security, backup and recovery, and performance tuning. It is a foundation-level exam that lays the groundwork for more advanced Oracle Database Administration certifications.

Q41. Which two statements are true about the results of using the INTERSECT operator in compound queries? (Choose two.)

Column names in each SELECT in the compound query can be different

The number of columns in each SELECT in the compound query can be different

Reversing the order of the intersected tables can sometimes affect the output

INTERSECT returns rows common to both sides of the compound query

INTERSECT ignores NULLs

Q42. View the Exhibits and examine the structure of the COSTS and PROMOTIONS tables.
You want to display PROD_IDS whose promotion cost is less than the highest cost PROD_ID in a promotion time interval.
Examine this SQL statement:

Exhibit 1.

Exhibit 2.

What will be the result?

It gives an error because the ALL keyword is not valid

It gives an error because the GROUP BY clause is not valid

It executes successfully but does not give the required result

It executes successfully and gives the required result

Q43. In the spfile of a single instance database, LOCAL_LISTENER is set to LISTENER_1.
The TNSNAMES.ORA file in $ORACLE_HOME/network/admin in the database home contains:

Which statement is true?

Dynamic service registration cannot be used for this database instance

The LREG process registers services dynamically with the LISTENER_1 listener

LISTENER_1 must also be defined in the LISTENER.ORA file to enable dynamic service registration

There are two listeners named LISTENER and LISTENER_1 running simultaneously using port 1521 on the same host as the database instances

The definition for LISTENER_1 requires a CONNECT_DATA section to enable dynamic service registration

The listener forwards client requests to supported services. These services are dynamically registered with the listener. This dynamic registration feature is called service registration. The registration is performed by the Listener Registration (LREG) process. Dynamic service registration does not require any manual configuration in the listener.ora file.
Reference:
https://docs.oracle.com/database/121/NETAG/listenercfg.htm#NETAG292
https://docs.oracle.com/database/121/NETAG/listenercfg.htm#NETAG292

Q44. Which three statements are true about inner and outer joins? (Choose three.)

A full outer join returns matched and unmatched rows

An inner join returns matched rows

Outer joins can only be used between two tables per query

A full outer join must use Oracle syntax

Outer joins can be used when there are multiple join conditions on two tables

A left or right outer join returns only unmatched rows

Reference:
https://www.studytonight.com/dbms/joining-in-sql.php

Q45. Which three statements are true about the tools used to configure Oracle Net Services? (Choose three.)

Oracle Net Manager can be used to centrally configure listeners on any database server target

Enterprise Manager Cloud Control can be used to centrally configure net service names for any database server target

Enterprise Manager Cloud Control can be used to centrally configure listeners on any managed database server

The lsnrctl utility requires a listener.ora file to exist before it is started

The Oracle Net Configuration Assistant is only used when running the Oracle installer

Oracle Net Manager can be used to locally configure naming methods on a database server

Q46. 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

Q47. Which statement is true about aggregate functions?

Aggregate functions can be nested to any number of levels

The AVG function implicitly converts NULLS to zero

Aggregate functions can be used in any clause of a SELECT statement

The MAX and MIN functions can be used on columns with character data types

Q48. The stores table has a column START_DATE of data type DATE, containing the date the row was inserted. You only want to display details of rows where START_DATE is within the last 25 months.
Which where clause can be used?

WHERE MON’THS_BETWEEN (SYSDATE, start_date) <= 25

WHERE ADD_MONTHS<start_date, 25) <= SYSDATE

WHERE TO_XUMBER(start_date – SYSDATE) <= 25

WHERE MON’THS_BETWEEN (start_date, SYSDATE) <= 25

Q49. Table ORDER_ITEMScontains columns ORDER_ID, UNIT_PRICEand QUANTITY, of data type NUMBER.
Examine these SQL statements:
Statement 1:
SELECT MAX(unit_price * quantity) “Maximum Order”
FROM order_items;
Statement 2:
SELECT MAX(unit_price * quantity) “Maximum Order”
FROM order_items
GROUP BY order_id;
Which two statements are true?

Statement 1 returns only one row of output.

Statement 2 returns only one row of output.

Both statements will return NULL if either UNIT_PRICE or QUANTITY contains NULL.

Both the statements give the same output.

Statement 2 may return multiple rows of output.

Q50. Examine these commands:

Which two statements are true about the sqiidr execution?

It generates a sqi script that it uses to load data from EMP.DAT TO EMP.

It overwrites the data for Alan and adds data for Curl and Bob

It appends data from EMP.DAT TO EMP.

It overwrites all data in emp with data from emp.dat.

It generates a log that contains control file entries, which can be used with normal SQL’Loader operations.

Q51. Evaluate these commands which execute successfully:

Which two statements are true about the ORD_ITEMS table and the ORD_SEQ sequence? (Choose two.)

If sequence ORD_SEQ is dropped then the default value for column ORD_NO will be NULL for rows inserted into ORD_ITEMS

Any user inserting rows into table ORD_ITEMS must have been granted access to sequence ORD_SEQ

Column ORD_NO gets the next number from sequence ORD_SEQ whenever a row is inserted into ORD_ITEMS and no explicit value is given for ORD_NO

Sequence ORD_SEQ cycles back to 1 after every 5000 numbers and can cycle 20 times

Sequence ORD_SEQ is guaranteed not to generate duplicate numbers

Q52. Examine the description of the product_details table:

Which two statements are true?

PRODUCT _ic can be assigned the PRIMARY KEY constraint.

PRODUCT _price contains the value zero by default if no value is assigned to it.

PRODUCT _price can be used in an arithmetic expression even if it has no value stored in it.

EXPIRY_ DATE contains the sysdate by default if no date is assigned to it.

PRODUCT_NAKE cannot contain duplicate values.

EXPIRY_ DATE cannot be used in arithmetic expressions.

Q53. Which two statements are true about Enterprise Manager Database Express? (Choose two.)

It is available only when the database is open

It can be used to perform database recovery

The same port number can be used for Database Express configurations for databases on different hosts

It can be used to switch a database into ARCHIVELOGMODE

The same port number can be used for multiple Database Express configurations for multiple databases on the same host

Reference:
https://docs.oracle.com/en/database/oracle/oracle-database/19/admqs/getting-started-with-database-administration.html#GUID-EB851101-07BE-4038-BB9D-06E01CC7F5D5

Q54. You start your database instance in NOMOUNT state. Which two actions are performed?

The control files are opened.

The consistency of the database is checked.

All required background processes are started.

SYS can access the database.

Memory is allocated for the SG1

Q55. 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_AUTHENT_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

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

Q56. Which three statements are true about single-row functions? (Choose three.)

They can be used only in the WHERE clause of a SELECT statement

The argument can be a column name, variable, literal or an expression

The data type returned can be different from the data type of the argument

They can be nested to any level

They can accept only one argument

They return a single result row per table

https://www.folkstalk.com/2012/01/oracle-single-row-functions-examples.html

Q57. Examine the description of the BOOKS table:

The table has 100 rows.
Examine this sequence of statements issued in a new session:
INSERT INTO books VALUES (‘ADV112’, ‘Adventures of Tom Sawyer’, NULL, NULL); SAVEPOINT a; DELETE FROM books; ROLLBACK TO SAVEPOINT a; ROLLBACK; Which two statements are true? (Choose two.)

The second ROLLBACK command does nothing

The second ROLLBACK command replays the delete

The first ROLLBACK command restores the 101 rows that were deleted, leaving the inserted row still to be committed

The second ROLLBACK command undoes the insert

The first ROLLBACK command restores the 101 rows that were deleted and commits the inserted row

Q58. View the Exhibits and examine the structure of the COSTS and PROMOTIONS tables.
You want to display PROD_IDS whose promotion cost is less than the highest cost PROD_ID in a promotion time interval.
Examine this SQL statement:

Exhibit 1.

Exhibit 2.

What will be the result?

It gives an error because the ALL keyword is not valid

It gives an error because the GROUP BY clause is not valid

It executes successfully but does not give the required result

It executes successfully and gives the required result

Q59. The CUSTOMERS table has a CUST_CREDIT_LIMIT column of data type NUMBER.
Which two queries execute successfully? (Choose two.)

SELECT NVL(cust_credit_limit * .15, ‘Not Available’) FROM customers;

SELECT NVL2(cust_credit_limit * .15, ‘Not Available’) FROM customers;

SELECT NVL(TO_CHAR(cust_credit_limit * .15), ‘Not Available’) FROM customers;

SELECT TO_CHAR(NVL(cust_credit_limit * .15, ‘Not Available’)) FROM customers;

SELECT NVL2(cust_credit_limit, TO_CHAR(cust_credit_limit * .15), ‘Not Available’) FROM customers;

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To prepare for the Oracle 1Z0-082 exam, candidates can take advantage of Oracle University’s training programs, which cover all the topics included in the exam. Candidates can also use Oracle’s official study guides and practice exams to help them prepare for the exam. Passing 1Z1-082 exam requires a strong understanding of database administration concepts and hands-on experience in managing an Oracle database instance. Candidates who pass the Oracle 1Z0-082 exam will receive the Oracle Certified Associate (OCA) certification in Database Administration.

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