2023 Updated Verified Pass 1Z1-082 Exam - Real Questions and Answers
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The Oracle 1Z0-082 certification exam covers a range of topics, including Oracle architecture, database creation, schema management, data dictionary views, user management, backup and recovery, performance tuning, and database security. The exam is designed to test the candidate’s knowledge of the Oracle database management system and its functionality. The exam is a prerequisite for the Oracle Database Administration II certification exam.
Oracle 1Z1-082 certification is an industry-recognized credential that demonstrates the proficiency of the database administrators in managing Oracle databases. This certification is highly valued by employers globally and can increase the chances of getting a higher salary and better job opportunities.
The Oracle 1Z0-082 exam is a certification exam that is designed for database administrators who want to demonstrate their skills in managing Oracle databases. This exam is the first step towards becoming an Oracle Certified Associate (OCA) in database administration. Passing this exam demonstrates that the candidate has the fundamental skills and knowledge required to administer an Oracle database.
NEW QUESTION # 40
Table EMPLOYEES contains columns including EMPLOYEE_ID, JOB_ID and SALARY.
Only the EMPLOYEE_ID column is indexed.
Rows exist for employees 100 and 200.
Examine this statement:
Which two statements are true? (Choose two.)
- A. Employee 200 will have SALARY set to the same value as the SALARY of employee 100
- B. Employee 100 will have SALARY set to the same value as the SALARY of employee 200
- C. Employees 100 and 200 will have the same SALARY as before the update command
- D. Employee 100 will have JOB_ID set to the same value as the JOB_ID of employee 200
- E. Employee 200 will have JOB_ID set to the same value as the JOB_ID of employee 100
- F. Employees 100 and 200 will have the same JOB_ID as before the update command
Answer: B,D
NEW QUESTION # 41
You want to use table compression suitable for OLTP that will:
Compress rows for all DML statements on that table
Minimize the overheads associated with compression
Which compression option is best suited for this?
- A. COLUMN STORE COMPRESS FOR ARCHIVE HIGH
- B. ROW STORE COMPRESS ADVANCED
- C. COLUMN STORE COMPRESS FOR QUERY LOW
- D. COLUMN STORE COMPRESS FOR ARCHIVE LOW
- E. ROW STORE COMPRESS BASIC
Answer: B
Explanation:
Reference:
https://www.oracle.com/technetwork/database/options/compression/advanced-compression-wp-12c-1896128.pdf
NEW QUESTION # 42
Which two statements are true about UNDO and REDO? (Choose two.)
- A. The generation of UNDO generates REDO
- B. The generation of REDO generates UNDO
- C. DML modifies Oracle database objects and only generates REDO
- D. DML modifies Oracle database objects and only generates UNDO
Answer: A,B
NEW QUESTION # 43
Which two queries execute successfully?
- A. SELECT COALESCE(100, NULL, 200) FROM DUAL;
- B. SELECT NULLIF(100,100) FROM DUAL;
- C. SELECT NULLIF(NULL, 100) FROM DUAL;
- D. SELECT 2TOLLIF(100, 'A') FROM DUAL;
- E. SELECT COALESCE (100, 'AM FROM DUAL;
Answer: A
NEW QUESTION # 44
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.)
- A. The first ROLLBACK command restores the 101 rows that were deleted, leaving the inserted row still to be committed
- B. The second ROLLBACK command replays the delete
- C. The first ROLLBACK command restores the 101 rows that were deleted and commits the inserted row
- D. The second ROLLBACK command does nothing
- E. The second ROLLBACK command undoes the insert
Answer: A,E
NEW QUESTION # 45
In the SALES database, DEFERRED_SEGMENT_CREATION is TRUE.
Examine this command:
SQL> CREATE TABLE T1(c1 INT PRIMARY KEY, c2 CLOB);
Which segment or segments, if any, are created as a result of executing the command?
- A. T1 and an index segment created for the primary key only
- B. T1, an index segment for the primary key, a LOB segment, and a lobindex segment
- C. T1 only
- D. no segments are created
- E. T1, an index segment for the primary key, and a LOB segment only
Answer: C
Explanation:
Explanation/Reference:
NEW QUESTION # 46
Which three statements are true about dropping and unused columns in an Oracle database? (Choose three.)
- A. An UNUSED column's space is reclaimed automatically when the row containing that column is next queried.
- B. An UNUSED column's space is reclaimed automatically when the block containing that column is next queried.
- C. A DROP COLUMN command can be rolled back
- D. Partition key columns cannot be dropped.
- E. A column that is set to UNUSED still counts towards the limit of 1000 columns per table
- F. A primary key column referenced by another column as a foreign key can be dropped if using the CASCADE option.
Answer: D,E,F
NEW QUESTION # 47
In which three situations does a new transaction always start? (Choose three.)
- A. when issuing a CREATE INDEX statement after a CREATE TABLE statement completed successfully in the same session
- B. when issuing the first Data Manipulation Language (DML) statement after a COMMIT OR ROLLBACK statement was issued in the same session
- C. when issuing a CREATE TABLE statement after a SELECT statement was issued in the same session
- D. when issuing a SELECT FOR UPDATE statement after a CREATE TABLE AS SELECT statement was issued in the same session
- E. when issuing a DML statement after a DML statement failed in the same session
- F. when issuing a TRUNCATE statement after a SELECT statement was issued in the same session
Answer: A,B,D
Explanation:
https://docs.oracle.com/en/database/oracle/oracle-database/19/cncpt/transactions.html#GUID-7690181F-8293-47B9-ADC1-905BD9C3AF57
NEW QUESTION # 48
Which two statements are true about single row functions? (Choose two.)
- A. CEIL : can be used for positive and negative numbers
- B. FLOOR : returns the smallest integer greater than or equal to a specified number
- C. TRUNC : can be used with NUMBER and DATE values
- D. MOD : returns the quotient of a division operation
- E. CONCAT : can be used to combine any number of values
Answer: C,D
Explanation:
https://docs.oracle.com/en/database/oracle/oracle-database/18/sqlrf/Single-Row- Functions.html#GUID-B93F789D-B486-49FF-B0CD-0C6181C5D85C
NEW QUESTION # 49
Examine the description of the CUSTOMERS table:
For customers whose income level has a value, you want to display the first name and due amount as 5% of their credit limit. Customers whose due amount is null should not be displayed.
Which query should be used?
- A. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNTFROM customersWHERE cust_income_level IS NOT NULLAND cust_credit_limit IS NOT NULL;
- B. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNTFROM customersWHERE cust_incoms_level IS NOT NULLAND due_amount IS NOT NULL;
- C. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNTFROM customersWHERE cust_income_level != NULLAND due_amount !=NULL;
- D. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNTFROM customersWHERE cust_income_level <> NULLAND due_amount <> NULL;
- E. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNTFROM customersWHERE cust_income_level != NULLAND cust_credit_level !=NULL;
Answer: A
NEW QUESTION # 50
Examine these commands:
Which two statements are true about the sqlldrexecution? (Choose two.)
- A. It appends data from EMP.DAT to EMP
- B. It generates a log that contains control file entries, which can be used with normal SQL*Loader operations
- C. It uses the database buffer cache to load data
- D. It generates a sql script that it uses to load data from EMP.DAT to EMP
- E. It overwrites data in EMP with data in EMP.DAT
Answer: C,D
NEW QUESTION # 51
Which three statements are true about GLOBAL TEMPORARY TABLES? (Choose three.)
- A. A GLOBAL TEMPORARY TABLE'S definition is available to multiple sessions.
- B. A DELETE command on a GLOBAL TEMPORARY TABLE cannot be rolled back.
- C. GLOBAL TEMPORARY TABLE rows inserted by a session are available to any other session whose user has been granted select on the table.
- D. Any GLOBAL TEMPORARY TABLE rows existing at session termination will be deleted.
- E. A TRUNCATE command issued in a session causes all rows in a GLOBAL TEMPORARY TABLE for the issuing session to be deleted.
- F. GLOBAL TEMPORARY TABLE space allocation occurs at session start.
Answer: B,C,F
NEW QUESTION # 52
Which two statements are true about single row functions? (Choose two.)
- A. CEIL : can be used for positive and negative numbers
- B. TRUNC : can be used with NUMBERand DATEvalues
- C. FLOOR : returns the smallest integer greater than or equal to a specified number
- D. MOD : returns the quotient of a division operation
- E. CONCAT : can be used to combine any number of values
Answer: B,D
Explanation:
Explanation/Reference: https://docs.oracle.com/en/database/oracle/oracle-database/18/sqlrf/Single-Row- Functions.html#GUID-B93F789D-B486-49FF-B0CD-0C6181C5D85C
NEW QUESTION # 53
In which three situations does a new transaction always start? (Choose three.)
- A. when issuing the first Data Manipulation Language (DML) statement after a COMMIT OR ROLLBACK statement was issued in the same session
- B. when issuing a CREATE INDEX statement after a CREATE TABLE statement completed successfully in the same session
- C. when issuing a DML statement after a DML statement failed in the same session
- D. when issuing a CREATE TABLE statement after a SELECT statement was issued in the same session
- E. when issuing a SELECT FOR UPDATE statement after a CREATE TABLE AS SELECT statement was issued in the same session
- F. when issuing a TRUNCATE statement after a SELECT statement was issued in the same session
Answer: A,C,E
NEW QUESTION # 54
Which two are true about shrinking a segment online? (Choose two.)
- A. To shrink a table it must have a PRIMARY KEY constraint
- B. It is not possible to shrink either indexes or Index Organized Tables (IOTs)
- C. It always eliminates all migrated rows if any exist in the table
- D. It must be in a tablespace that uses Automatic Segment Space Management (ASSM)
- E. To shrink a table it must have a UNIQUE KEY constraint
- F. To shrink a table it must have row movement enabled
Answer: A,F
NEW QUESTION # 55
Which two statements are true about the results of using the INTERSECT operator in compound queries? (Choose two.)
- A. The number of columns in each SELECT in the compound query can be different
- B. Reversing the order of the intersected tables can sometimes affect the output
- C. Column names in each SELECT in the compound query can be different
- D. INTERSECT ignores NULLs
- E. INTERSECT returns rows common to both sides of the compound query
Answer: C,D
NEW QUESTION # 56
Examine the description of the CUSTOMERS table:
You want to display details of all customers who reside in cities starting with the letter D followed by at least two characters.
Which query can be used?
- A. SELECT * FROM customers WHERE city = 'D_%';
- B. SELECT * FROM customers WHERE city LIKE 'D_';
- C. SELECT * FROM customers WHERE city LIKE 'D_%';
- D. SELECT * FROM customers WHERE city = '%D_';
Answer: C
NEW QUESTION # 57
Which two statements are true about single row functions? (Choose two.)
- A. FLOOR : returns the smallest integer greater than or equal to a specified number
- B. CEIL : can be used for positive and negative numbers
- C. TRUNC : can be used with NUMBER and DATE values
- D. CONCAT : can be used to combine any number of values
- E. MOD : returns the quotient of a division operation
Answer: B,C
NEW QUESTION # 58
Examine the description of the EMPLOYEES table:
Which query is valid?
- A. SELECT dept_id, join_date, SUM(salary) FROM employees GROUP BY dept_id, join_date;
- B. SELECT dept_id, join_date, SUM(salary) FROM employees GROUP BY dept_id;
- C. SELECT dept_id, AVG(MAX(salary)) FROM employees GROUP BY dept_id;
- D. SELECT dept_id, MAX(AVG(salary)) FROM employees GROUP BY dept_id;
Answer: B
NEW QUESTION # 59
Which three statements are true about views in an Oracle database? (Choose three.)
- A. Deleting one or more rows using a view whose defining query contains a GROUP BY clause will cause an error
- B. The WITH CHECK clause prevents certain rows from being displayed when querying the view
- C. Data Manipulation Language (DML) can always be used on views
- D. Inserting one or more rows using a view whose defining query contains a GROUP BY clause will cause an error
- E. The WITH CHECK clause prevents certain rows from being updated or inserted
- F. Views can be updated without the need to re-grant privileges on the view
- G. Tables in the defining query of a view must always exist in order to create the view
Answer: A,D,F
NEW QUESTION # 60
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