1Z0-082 Exam Questions Get Updated [2025] with Correct Answers [Q34-Q57]

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1Z0-082 Exam Questions Get Updated [2025] with Correct Answers

Practice 1Z0-082 Questions With Certification guide Q&A from Training Expert TestSimulate

Q34. Which three statements are true about time zones, date data types, and timestamp data types in an Oracle database? (Choose three.)

The CURRENT_TIMESTAMP function returns data without time zone information

A TIMESTAMP WITH LOCAL TIMEZONE data type column is stored in the database using the time zone of the session that inserted the row

A TIMESTAMP data type column contains information about year, month, and day

The DBTIMEZONE function can return an offset from Universal Coordinated Time (UTC)

The SESSIONTIMEZONE function can return an offset from Universal Coordinated Time (UTC)

Q35. 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

Q36. Which two are true about RETENTION GUARANTEE? (Choose two.)

It is a tablespace attribute.

It prevents FLASHBACK DATABASE operation failure.

It prevents out-of-space errors.

It prevents “Snapshot too old” errors.

It is a static parameter.

Q37. 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.

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 with NUMBER and DATE 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 substitution variables?

A substitution variable prefixed with & always prompts only once for a value in a session.

A substitution variable prefixed with to prompts only once for a value in a session unless it is set to undefined in the session

A substitution variable can be used only in a select statement.

A substitution variable used to prompt for a column name must be enclosed in single quotation marks.

A substitution variable can be used with any clause in a select statement.

A substitution variable used to prompt for a column name must be enclosed in double quotation marks.

Q40. Which three statements are true about the Automatic Diagnostic Repository (ADR)?

It Is held Inside an Oracle database schema.

The ADR base is specified In the diagnostic_dest database parameter.

It is only used for Oracle Database diagnostic information.

It is a file-based repository held outside any database.

It can be used for problem diagnosis of a database when that database’s instance is down.

Q41. The CUSTOMERS table has a CUST_CREDIT_LIMIT column of data type NUMBER.
Which two queries execute successfully? (Choose two.)

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

SELECT NVL2(cust_credit_linit * .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;

Q42. 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

Q43. Examine these SQL statements which execute successfully:

Which two statements are true after execution?

The primary key constraint will be enabled and deferred.

The foreign key constraint will be enabled and deferred.

The foreign key constraint will be disabled.

The foreign key constraint will be enabled and immediate.

The primary key constraint will be enabled and immediate.

Q44. You must create a tablespace of non-standard block size in a new file system and plan to use this command:

The standard block size is 8k but other non-standard block sizes will also be used. Which two are requirements for this command to succeed?

d3_32k_cache_size should be set to a value greater than db_cache_size.

db_32k_cache_size must be set to a value that can be accommodated in the SGA.

db_32r_cache_si2e must be less than db_ca=he_size.

db_cache_s:ze must be set to a size that is smaller than db_32k_cache_size.

The /u02 file system must have at least lOOg space for the datafile.

The operating system must use a 32k block size.

Q45. You execute this command:
CREATE SMALLFILE TABLESPACE sales
DATAFILE ‘/u01/app/oracle/sales01.dbf
SIZE 5G
SEGMENT SPACE MANAGEMENT AUTO;
Which two actions must you take to ensure UNDOTBS01 is used as the default UNDO tablespace? (Choose two.)

It must be smaller than the smallest BIGFILE tablespace

Free space is managed using freelists

Any data files added to the tablespace must have a size of 5 gigabytes

It uses the database default blocksize

It is a locally managed tablespace

Q46. Which three statements are true about Oracle synonyms? (Choose three.)

A synonym cannot be created for a PL/SQL package

A synonym can be available to all users

A SEQUENCE can have a synonym

A synonym created by one user can refer to an object belonging to another user

Any user can drop a PUBLIC synonym

Q47. Which three functions are performed by dispatchers in a shared server configuration? (Choose three.)

writing inbound request to the common request queue from all shared server connections

checking for outbound shared server responses on the common outbound response queue

receiving inbound requests from processes using shared server connections

sending each connection input request to the appropriate shared server input queue

broadcasting shared server session responses back to requesters on all connections

sending shared server session responses back to requesters on the appropriate connection

Q48. Which two statements are true about the Oracle Data Dictionary?

It is owned by the sys user.

Data dictionary base tables can be queried directly.

It is owned by the system user.

Data dictionary views are always created with queries that join two or more base tables.

All data dictionary view joins base tables to dynamic performance views.

Q49. Examine the description of the EMPLOYEES table:

Which query is valid?

SELECT dept_id, AVG(MAX(salary)) FROM employees GROUP BY dept_id;

SELECT dept_id, join_date, SUM(salary) FROM employees GROUP BY dept_id;

SELECT dept_id, join_date, SUM(salary) FROM employees GROUP BY dept_id, join_date;

SELECT dept_id, MAX(AVG(salary)) FROM employees GROUP BY dept_id;

Q50. 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

Q51. In the ORCL database, UNDOTBS1 is the active undo tablespace with these properties:
1. A size of 100 MB
2. AUTOEXTEND is off
3. UNDO_RETENTION is set to 15 minutes
4. It has RETENTION GUARANTEE
UNDOTBS1 fills with uncommitted undo 10 minutes after the database opens.
What will happen when the next update is attempted by any transaction?

It succeeds and the generated undo is stored in SYSTEM.

It fails and returns the error message “ORA-30036: unable to extend segment by 8 in undo tablespace ‘UNDOTBS1’ “.

It succeeds and the least recently written undo block of UNDOTBS1 is overwritten by the generated undo.

It succeeds and the generated undo is stored in SYSAUX.

It succeeds and the least recently read undo block of UNDOTBS1 is overwritten by the generated undo.

Q52. 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)

Q53. A user complains about poor database performance. You suspect that the user’s session is waiting for an event to complete.
You want to verify this.
Which two views may reveal for what the user’s session is currently waiting? (Choose two.)

V$SYSTEM_EVENT

V$SESSION_EVENT

V$SESSION_WAIT_CLASS

V$SESSION_WAIT

V$SESSION

Q54. You currently have an active transaction in your session and have been granted select access to vstransaction.

In which three situations will re-executing this query still return a row but with a different XID, indicating a new transaction has started?

after successfully executing a commit or rollback followed by a select statement

after successfully executing a create table as select statement followed by a select for update statement

after successfully executing a commit or rollback followed by a DML statement

after successfully executing a create table statement followed by a create index statement

after successfully executing a DML statement following a failed DML statement

after successfully executing a truncate statement followed by a DML statement

Q55. View the Exhibit and examine the structure of the PRODUCTS table.
Which two tasks require subqueries? (Choose two.)

Display the number of products whose PROD_LIST_PRICE is more than the average PROD_LIST_PRICE

Display suppliers whose PROD_LIST_PRICE is less than 1000

Display products whose PROD_MIN_PRICE is more than the average PROD_LIST_PRICE of all products, and whose status is orderable

Display the total number of products supplied by supplier 102 which have a product status of obsolete

Display the minimum PROD_LIST_PRICE for each product status

Q56. Examine this command:

Which two statements are true?

Compressed objects in SALES01.DBF will be uncompressed In SALES02.DBF after the move.

DML may be performed on tables with one or more extents in this data file during the execution of this command.

It overwrites any existing file with the name SALES02.DBF.dbf in /u02 by default.

The “to” clause containing the new file name must be specified even if Oracle Managed Files (OMF) is used.

Tables with one or more extents in this data file may be queried during the execution of this command.

Q57. You execute this query:
SELECT TO_CHAR(NEXT_DAY(LAST_DAY(SYSDATE), `MON’), `dd “Monday for”
fmMonth rrrr’)
What is the result?

It executes successfully but does not return any result

It returns the date for the first Monday of the next month

It generates an error

It returns the date for the last Monday of the current month

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