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Oracle Database 1Z0-082 practice test questions free (2021 updated)

QUESTION 1
Which three statements are true about the tools used to configure Oracle Net Services? (Choose three.)
A. The Oracle Net Configuration Assistant is only used when running the Oracle installer
B. Oracle Net Manager can be used to centrally configure listeners on any database server target
C. The lsnrctl utility requires a listener.ora file to exist before it is started
D. Oracle Net Manager can be used to locally configure naming methods on a database server
E. Enterprise Manager Cloud Control can be used to centrally configure listeners on any managed database server
F. Enterprise Manager Cloud Control can be used to centrally configure net service names for any database server
target
Correct Answer: BDE


QUESTION 2
Which statement is true about the INTERSECT operator used in compound queries?
A. Multiple INTERSECT operators are not possible in the same SQL statement
B. It processes NULLs in the selected columns
C. INTERSECT is of lower precedence than UNION or UNION ALL
D. It ignores NULLs
Correct Answer: B


QUESTION 3
You execute this command:

1Z0-082 exam questions-q3

Sufficient storage is available in filesystem /u01.
Which two statements are true about the BIG_TBS tablespace? (Choose two.)
A. AUTOEXTEND is possible for the datafile
B. It must be bigger than the largest SMALLFILE tablespace
C. Additional data files may not be added
D. It will be a dictionary-managed tablespace by default
E. It will always have a 32K blocksize
Correct Answer: AB


QUESTION 4
Which three statements are true about external tables in Oracle 18c and later releases? (Choose three.)
A. External table files can be used for other external tables in a different database
B. The ORACLE_LOADER access driver can be used to unload data from a database into an external table
C. The ORACLE_DATAPUMP access driver can be used to unload data from a database into an external table
D. They cannot be partitioned
E. The ORACLE_DATAPUMP access driver can be used to load data into a database from an external table
F. They support UPDATEs but not INSERTs and DELETEs
Correct Answer: ABF

QUESTION 5
Examine this description of the TRANSACTIONS table:

1Z0-082 exam questions-q5

Which two SQL statements execute successfully? (Choose two.)
A. SELECT customer_id AS “CUSTOMER-ID”, transaction_date AS DATE, amount + 100 “DUES” FROM transactions;
B. SELECT customer_id AS “CUSTOMER-ID”, transaction_date AS “DATE”, amount + 100 DUES FROM transactions;
C. SELECT customer_id AS CUSTOMER-ID, transaction_date AS TRANS_DATE, amount + 100 “DUES AMOUNT”
FROM transactions;
D. SELECT customer_id CUSTID, transaction_date TRANS_DATE, amount + 100 DUES FROM transactions;
E. SELECT customer_id AS `CUSTOMER-ID\\’, transaction_date AS DATE, amount + 100 `DUES AMOUNT\\’ FROM
transactions;
Correct Answer: BD

QUESTION 6
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.)
A. The online redo logs are opened
B. The online data files are opened
C. The alert log records the execution details
D. The Oracle background processes are started
E. The initialization parameter file is read
F. The control file is read
Correct Answer: DF


QUESTION 7
Which two statements are true about the WHERE and HAVING clauses in a SELECT statement? (Choose two.)
A. Aggregating functions and columns used in HAVING clauses must be specified in the SELECT list of a query
B. WHERE and HAVING clauses can be used in the same statement only if applied to different table columns
C. The HAVING clause can be used with aggregating functions in subqueries
D. The WHERE clause can be used to exclude rows before dividing them into groups
E. The WHERE clause can be used to exclude rows after dividing them into groups
Correct Answer: CD

QUESTION 8
In which three situations do a new transaction always start? (Choose three.)
A. when issuing a SELECT FOR UPDATE statement after a CREATE TABLE AS SELECT statement was issued in the
same session
B. when issuing a TRUNCATE statement after a SELECT 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 the first Data Manipulation Language (DML) statement after a COMMIT OR ROLLBACK statement was
issued in the same session
E. when issuing a CREATE INDEX statement after a CREATE TABLE statement completed successfully in the same
session
F. when issuing a DML statement after a DML statement failed in the same session
Correct Answer: ADF

QUESTION 9
Examine the description of the EMPLOYEES table:

1Z0-082 exam questions-q9

Which query is valid?
A. SELECT dept_id, AVG(MAX(salary)) FROM employees GROUP BY dept_id;
B. SELECT dept_id, join_date, SUM(salary) FROM employees GROUP BY dept_id;
C. SELECT dept_id, join_date, SUM(salary) FROM employees GROUP BY dept_id, join_date;
D. SELECT dept_id, MAX(AVG(salary)) FROM employees GROUP BY dept_id;
Correct Answer: B

QUESTION 10
View the Exhibit and examine the structure of the PRODUCTS table. Which two tasks require subqueries? (Choose
two.)

1Z0-082 exam questions-q10

A. Display the number of products whose PROD_LIST_PRICE is more than the average PROD_LIST_PRICE
B. Display suppliers whose PROD_LIST_PRICE is less than 1000
C. Display products whose PROD_MIN_PRICE is more than the average PROD_LIST_PRICE of all products, and
whose status is orderable
D. Display the total number of products supplied by supplier 102 which have a product status of obsolete
E. Display the minimum PROD_LIST_PRICE for each product status
Correct Answer: AC

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