Real Oracle 1Z0-082 Exam Dumps with Correct 145 Questions and Answers [Q21-Q45]

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Real Oracle 1Z0-082 Exam Dumps with Correct 145 Questions and Answers

Valid 1Z0-082 Test Answers & Oracle 1Z0-082 Exam PDF

Q21. Which two types of files are opened by a database instance in the NOMOUNT state?

control files

the alert log

the initialization parameter file

data files

online redo logs

Q22. Which two statements are true about views used for viewing tablespace and datafile information? (Choose two.)

Tablespace free space can be viewed in VSTABLESPACE

VSTABLESPACE displays information that is contained in the controlfile about tablespaces

VSTABLESPACE 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

Q23. 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.

Q24. 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

Q25. 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.)

Employee 100 will have SALARY set to the same value as the SALARY of employee 200

Employee 200 will have JOB_ID set to the same value as the JOB_ID of employee 100

Employee 200 will have SALARY set to the same value as the SALARY of employee 100

Employee 100 will have JOB_ID set to the same value as the JOB_ID of employee 200

Employees 100 and 200 will have the same JOB_ID as before the update command

Employees 100 and 200 will have the same SALARY as before the update command

Q26. Which three activities are recorded in the database alert log? (Choose three.)

Data Definition Language (DDL) statements

non-default database parameters

block corruption errors

deadlock errors

session logins and logouts

Q27. Examine these commands:

Which two statements are true about the sqlldr execution? (Choose two.)

It overwrites data in EMP with data in EMP.DAT

It uses the database buffer cache to load data

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

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

It appends data from EMP.DAT to EMP

Q28. 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

Q29. 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

Q30. 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?

SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNT
FROM customers
WHERE cust_income_level IS NOT NULL
AND due_amount IS NOT NULL;

SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNT
FROM customers
WHERE cust_income_level != NULL
AND cust_credit_level !=NULL;

SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNT
FROM customers
WHERE cust_income_level <> NULL
AND due_amount <> NULL;

SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNT
FROM customers
WHERE cust_income_level != NULL
AND due_amount != NULL;

SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNT
FROM customers
WHERE cust_income_level IS NOT NULL
AND cust_credit_limit IS NOT NULL;

Q31. 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

Q32. Which statement is true about the INTERSECT operator used in compound queries?

Multiple INTERSECT operators are not possible in the same SQL statement

It processes NULLs in the selected columns

INTERSECT is of lower precedence than UNION or UNION ALL

It ignores NULLs

Q33. You need to calculate the number of days from 1st January 2019 until today.
Dates are stored in the default format of DD-MON-RR.
Which two queries give the required output? (Choose two.)

SELECT TO_CHAR(SYSDATE, `DD-MON-YYYY’) ?’01-JAN-2019′ FROM DUAL;

SELECT ROUND(SYSDATE ?’01-JAN-2019′) FROM DUAL;

SELECT ROUND(SYSDATE ?TO_DATE(`01/JANUARY/2019′)) FROM DUAL;

SELECT TO_DATE(SYSDATE, `DD/MONTH/YYYY’) ?`01/JANUARY/2019′ FROM DUAL;

SELECT SYSDATE ?TO_DATE(’01-JANUARY-2019′) FROM DUAL;

Q34. Which three failures do not require intervention for recovery? (Choose three.)

user process failure

media failure

statement failure

network interface card (NIC) failure

transaction failure

Q35. Examine this description of the TRANSACTIONS table:

Which two SQL statements execute successfully? (Choose two.)

SELECT customer_id AS “CUSTOMER-ID”, transaction_date AS DATE, amount + 100 “DUES” FROM transactions;

SELECT customer_id AS “CUSTOMER-ID”, transaction_date AS “DATE”, amount + 100 DUES FROM transactions;

SELECT customer_id AS CUSTOMER-ID, transaction_date AS TRANS_DATE, amount + 100 “DUES AMOUNT” FROM transactions;

SELECT customer_id CUSTID, transaction_date TRANS_DATE, amount + 100 DUES FROM transactions;

SELECT customer_id AS ‘CUSTOMER-ID’, transaction_date AS DATE, amount + 100 ‘DUES AMOUNT’ FROM transactions;

Q36. 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

Q37. 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

Q38. The SCOTT/TIGER user exists in two databases, BOSTON_DB and DALLAS_DB, in two different locations.
Each database has a tnsnames.ora file defining DALLAS_DB as a service name.
Examine this command:
CREATE DATABASE LINK dblink1 CONNECT TO scott IDENTIFIED BY tiger USING ‘dallas_db’; How do you execute the command so that only SCOTT in BOSTON_DB can access the SCOTT schema in DALLAS_DB?

as SCOTT in DALLAS_DB

as SCOTT in BOSTON_DB

as SCOTT in BOSTON_DB and SYS in DALLAS_DB

as SYS in both the databases

as SCOTT in both the databases

Q39. 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?

COLUMN STORE COMPRESS FOR QUERY LOW

ROW STORE COMPRESS BASIC

COLUMN STORE COMPRESS FOR ARCHIVE LOW

COLUMN STORE COMPRESS FOR ARCHIVE HIGH

ROW STORE COMPRESS ADVANCED

Q40. Which two tasks can be performed in the NOMOUNT state? (Choose two.)

re-creating control files

full database recovery

enabling online redo log archiving

renaming data files

creating a database

Q41. 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

Q42. 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

Q43. The ORCL database has RESUMABLE__TIMEOUT = 7200 and DEFERRED_SEGMENT_CREATION = FALSE User U1 has a 1 MB quota in tablespace DATA.
U1 executes this command:
SQL> CREATE TABLE t1 AS
(SELECT object_name, sharing, created
FROM dba_objects);
U1 complains that the command is taking too long to execute.
In the alert log, the database administrator (DBA) finds this:
2017/3/6 14:45:17
statement in resumable session ‘User U1(136), Session 1, Instance 1’ was suspended due to ORA-01536: space quota exceeded for tablespace ‘DATA’ Which are three actions any one of which the DBA could take to resume the session? (Choose three.)

Add a data file to DATA

Drop other U1 objects in DATA

Increase U1’s quota sufficiently in DATA

Set DEFERRED_SEGMENT_CREATION to TRUE

Grant UNLIMITED TABLESPACE to U1

Set AUTOEXTEND ON for data files in DATA

Q44. Which three statements are true about table data storage in an Oracle Database? (Choose three.)

Data block headers contain their own Data Block Address (DBA)

A table row piece can be chained across several database blocks

Multiple row pieces from the same row may be stored in different database blocks

Multiple row pieces from the same row may be stored in the same block

Data block free space is always contiguous in the middle of the block