28 September, 2023

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Free demo questions for Oracle 1z0-082 Exam Dumps Below:

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Total 90 questions Full Exam Access

Question 1

Which three statements are true about undo segments and the use of undo by transactions in an Oracle database instance? (Choose three.)

An undo segment may be used by multiple transactions simultaneously

Undo segments can wrap around to the first extent when a transaction fills the last extend of the undo segment

Undo segments have a minimum of three extents

Undo segments can extend when a transaction fills the last extent of the undo segment

A single transaction may use multiple undo segments simultaneously

Undo segments must be stored in a BIGFILE tablespace

Undo segments must be stored in a SMALLFILE tablespace

Question 2

Which two statements are true regarding Oracle database space management within blocks managed by Automatic Segment Space Management (ASSM)? (Choose two.)

PCTFREE defaults to 10% for all blocks in all segments for all compression methods

ASSM assigns blocks to one of four fullness categories based on what percentage of the block is allocated for rows

Update operations always attempt to find blocks with free space appropriate to the length of the row being updated

Insert operations always attempt to find blocks with free space appropriate to the length of the row being inserted

A block will always be eligible for inserts if the row is short enough to fit into the block

Question 3

Which two statements are true about the ORDER BY clause when used with a SQL statement containing a SET operator such as UNION? (Choose two.)

Column positions must be used in the ORDER BY clause

Only column names from the first SELECT statement in the compound query are recognized

The first column in the first SELECT of the compound query with the UNION operator is used by default to sort output in the absence of an ORDER BY clause

Each SELECT statement in the compound query must have its own ORDER BY clause

Each SELECT statement in the compound query can have its own ORDER BY clause

Question 4

Which two statements are true about space-saving features in an Oracle Database? (Choose two.)

Private Temporary Tables (PTTS) store metadata in memory only

An index created with the UNUSABLE attribute has no segment

If they exist for a session, Private Temporary Tables (PTTs) are always dropped at the next COMMIT OR ROLLBACK statement

An index that is altered to be UNUSABLE will retain its segment

A table that is truncated will always have its segment removed

Question 5

Which three instance situations are possible with the Oracle Database server without multi-tenant? (Choose three.)

two or more instances on separate servers all associated with one database

one instance on one server associated with one database

one instance on one server associated with two or more databases on the same server

one instance on one server not associated with any database

one instance on one server associated with two or more databases on separate servers

Question 6

Which three statements are true about advanced connection options supported by Oracle Net for connection to Oracle Database instances? (Choose three.)

Connect Time Failover requires the use of Transparent Application Failover (TAF)

Source Routing requires the use of a name server

Source Routing enables the use of Connection Manager (CMAN) which enables network traffic to be routed through a firewall

Load Balancing can balance the number of connections to dispatchers when using a Shared Server configuration

Load Balancing requires the use of a name server

Connect Time Failover requires the connect string to have two or more listener addresses configured

Question 7

Which two are true about a SQL statement using SET operators such as UNION? (Choose two.)

The data type group of each column returned by the second query must match the data type group of the corresponding column returned by the first query.

The number, but not names, of columns must be identical for all SELECT statements in the query.

The data type of each column returned by the second query must exactly match the data type of the corresponding column returned by the first query.

The names and number of columns must be identical for all SELECT statements in the query.

The data type of each column returned by the second query must be implicitly convertible to the data type of the corresponding column returned by the first query.

Question 8

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

Question 9

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

Question 10

Which three statements are true regarding indexes? (Choose three.)

A UNIQUE index can be altered to be non-unique

A SELECT statement can access one or more indices without accessing any tables

A table belonging to one user can have an index that belongs to a different user

An update to a table can result in updates to any or all of the table’s indexes

When a table is dropped and is moved to the RECYCLE BIN, all indexes built on that table are permanently dropped

An update to a table can result in no updates to any of the table’s indexes

Question 11

Examine the description of the PROMOTIONS table:
1Z0-082 dumps exhibit

You want to display the unique promotion costs in each promotion category. Which two queries can be used? (Choose two.)

SELECT promo_cost, promo_category FROM promotions ORDER BY 1;

SELECT DISTINCT promo_cost || ’ in ‘ || DISTINCT promo_category FROM promotions ORDER BY 1;

SELECT DISTINCT promo_category || ‘ has ‘ || promo_cost AS COSTS FROM promotions ORDER BY 1;

SELECT promo_category, DISTINCT promo_cost FROM promotions ORDER BY 2;

SELECT DISTINCT promo_category, promo_cost FROM promotions ORDER BY 1;

Question 12

Which three statements are true about views in an Oracle database? (Choose three.)

Views can be updated without the need to re-grant privileges on the view

Tables in the defining query of a view must always exist in order to create the view

The WITH CHECK clause prevents certain rows from being displayed when querying the view

Data Manipulation Language (DML) can always be used on views

Inserting one or more rows using a view whose defining query contains a GROUP BY clause will cause an error

Deleting one or more rows using a view whose defining query contains a GROUP BY clause will cause an error

The WITH CHECK clause prevents certain rows from being updated or inserted

Question 13

Which two statements are true about the Automatic Diagnostic Repository (ADR)? (Choose two.)

The ADR base defaults to $ORACLE_HOME/rdbms/admin ifneither DIAGNOSTIC_DEST nor ORACLE_BASE is set

The ADR base defaults to $ORACLE_HOME/dbs if the DIAGNOSTIC_DEST parameter and the ORACLE_BASE environment variable are not set

It supports diagnostics for Automatic Storage Management (ASM)

It supports diagnostics for Oracle Clusterware

It is held inside an Oracle database schema

Question 14

Examine the description of the CUSTOMERS table:
1Z0-082 dumps exhibit

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_AMOUNTFROM customersWHEREcust_incoms_level IS NOT NULLAND due_amount IS NOT NULL;

SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNTFROM customersWHERE cust_income_level != NULLAND cust_credit_level !=NULL;

SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNTFROM customersWHERE cust_income_level <> NULLAND due_amount <> NULL;

SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNTFROM customersWHERE cust_income_level != NULLAND due_amount !=NULL;

SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNTFROM customersWHERE cust_income_level IS NOT NULLAND cust_credit_limit IS NOT NULL;

Question 15

Which three statements are true about the DESCRIBE command? (Choose three.)

It displays the PRIMARY KEY constraint for any column or columns that have that constraint

It can be used from SQL Developer

It displays the NOT NULL constraint for any columns that have that constraint

It can be used to display the structure of an existing view

It displays all constraints that are defined for each column

It can be used only from SQL *Plus

Question 16

Which four statements are true regarding primary and foreign key constraints and the effect they can have on table data? (Choose four.)

A table can have only one primary key but multiple foreign keys

A table can have only one primary key and foreign key

The foreign key columns and parent table primary key columns must have the same names

It is possible for child rows that have a foreign key to remain in the child table at the time the parent row is deleted

It is possible for child rows that have a foreign key to be deleted automatically from the child table at the time the parent row is deleted

Only the primary key can be defined at the column and table level

Primary key and foreign key constraints can be defined at both the column and table level

Question 17

Which two statements are true regarding the UNION and UNION ALL operators? (Choose two.)

Duplicates are eliminated automatically by the UNION ALL operator

The number of columns selected in each SELECT statement must be identical

The names of columns selected in each SELECT statement must be identical

The output is sorted by the UNION ALL operator

NULLS are not ignored during duplicate checking

Question 18

Examine this command and some partial output:
1Z0-082 dumps exhibit

Why does the DB01.abc.com service show unknown status?

The service DB01.abc.com is dynamically registered

The LOCAL_LISTENER database parameter is not set to a service name that refers to LISTENER_1

The service DB01.abc.com is statically registered

The listener is not listening on the default port 1521

The SID_LIST_LISTENER section is not contained in the LISTENER.ORA file

Question 19

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)

Question 20

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

Question 21

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:
1Z0-082 dumps exhibit

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

Question 22

Examine these commands:
1Z0-082 dumps exhibit

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

Question 23

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

Question 24

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:
1Z0-082 dumps exhibit

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

Question 25

Which three statements are true about the Oracle Data Dictionary? (Choose three.)

Data dictionary views are created by joins of dictionary base tables and DBA-defined tables

The data dictionary is created and maintained by the database administrator

Views with the same name but different prefixes, such as CDB, DBA, ALL and USER, reference the same base tables from the data dictionary

Base tables can be queried directly

It is owned by the SYSTEM user

Usernames of all users including database administrators are stored in the data dictionary

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Total 90 questions Full Exam Access