Ace Oracle 1Z1-082 Certification with Actual Questions Jul 06, 2023 Updated [Q79-Q103]

Ace Oracle 1Z1-082 Certification with Actual Questions Jul 06, 2023 Updated

2023 The Most Effective 1Z1-082 with 145 Questions Answers

The Oracle 1Z1-082 certification is a valuable credential for anyone seeking to advance their career in database administration. This certification validates the candidate’s expertise in managing and maintaining Oracle databases and proves their ability to handle complex database environments. It is a globally recognized certification that can open up new opportunities for professionals in the IT industry.

The Oracle 1Z0-082 exam, also known as the Oracle Database Administration I exam, is a certification exam aimed at IT professionals seeking to become certified Oracle Database Administrators. The exam measures the candidate's knowledge and skills in basic database concepts, installation and configuration of the Oracle database, management of database instances, storage structures and security, backup and recovery, and performance tuning. It is a foundation-level exam that lays the groundwork for more advanced Oracle Database Administration certifications.

The Oracle 1Z1-082 certification exam is a globally recognized certification that validates the candidate's skills and knowledge in Oracle database administration. The certification is designed for professionals who are responsible for managing and maintaining Oracle databases. The certification demonstrates the candidate's ability to perform tasks such as database installation, configuration, backup and recovery, and performance tuning. The certification also shows the candidate's ability to troubleshoot and resolve issues related to Oracle databases.

NEW QUESTION # 79
The orders table has a column ORDER_DATE of data type date.
The default display format for a date Is DD-MON-RR.
Which two where conditions demonstrate the correct usage of conversion functions?

A. WHERE order_date IN (TO_DATE ('Oct 21 2018', 'Mon DD YYYY'), TC_CHAR('Nov 21 2018', 'Mon DD YYYY'))
B. WHERE order date > TO DATE('JUL 10 2018', *MON DD YYYY')
C. WHERE order_date > TO_DATE<ADD_MONTHS(SYSDATE, c) , 'MON DD YYYY')
D. WHERE TO_CHAR(order_date, 'MON DD YYYY') = 'JAN 20 2019'
E. WHERE order_date > TO_CHAR(ADD_MONTHS(SYSDATE, 6), 'MON DD YYYY')

Answer: B,D

NEW QUESTION # 80
Your database instance is started with a PFILE.
Examine these parameters:

You want to increase the size of the buffer cache.
Free memory is available to increase the size of the buffer cache.
You execute the command:
SQL> ALTER SYSTEM SET DB_CACHE_SIZE=1024M;
What is the outcome?

A. It fails because the SCOPE clause is missing
B. The value is changed for the current instance and in the PFILE
C. The value is changed only in the PFILE and takes effect at the next instance startup
D. Change is applied to the current instance, but does not persist after instance restart

Answer: D

Explanation:
Reference:
https://docs.oracle.com/database/121/SQLRF/statements_2017.htm#SQLRF00902

NEW QUESTION # 81
Which three statements are true about the Oracle join and ANSI join syntax? (Choose three.)

A. The Oracle join syntax performs better than the SQL:1999 compliant ANSI join syntax
B. The Oracle join syntax supports natural joins
C. The Oracle join syntax supports creation of a Cartesian product of two tables
D. The SQL:1999 compliant ANSI join syntax supports natural joins
E. The SQL:1999 compliant ANSI join syntax supports creation of a Cartesian product of two tables
F. The Oracle join syntax performs less well than the SQL:1999 compliant ANSI join syntax
G. The Oracle join syntax only supports right outer joins

Answer: C,D,E

Explanation:
https://oracle-base.com/articles/9i/ansi-iso-sql-support

NEW QUESTION # 82
Which two are true about a SQL statement using SET operators such as UNION? (Choose two.)

A. The number, but not names, of columns must be identical for all SELECT statements in the query.
B. 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.
C. The names and number of columns must be identical for all SELECT statements in the query.
D. 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.
E. 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.

Answer: D,E

NEW QUESTION # 83
Which three statements are true about time zones, date data types, and timestamp data types in an Oracle database? (Choose three.)

A. The SESSIONTIMEZONE function can return an offset from Universal Coordinated Time (UTC)
B. The DBTIMEZONE function can return an offset from Universal Coordinated Time (UTC)
C. A TIMESTAMP data type column contains information about year, month, and day
D. The CURRENT_TIMESTAMP function returns data without time zone information
E. A TIMESTAMP WITH LOCAL TIMEZONE data type column is stored in the database using the time zone of the session that inserted the row

Answer: A,B,D

NEW QUESTION # 84
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. The lsnrctl utility requires a listener.ora file to exist before it is started
C. Enterprise Manager Cloud Control can be used to centrally configure listeners on any managed database server
D. Oracle Net Manager can be used to centrally configure listeners on any database server target
E. Enterprise Manager Cloud Control can be used to centrally configure net service names for any database server target
F. Oracle Net Manager can be used to locally configure naming methods on a database server

Answer: C,E,F

Explanation:
https://docs.oracle.com/en/database/oracle/oracle-database/19/netag/introducing-oracle-net-services.html#GUID-6B1F0584-887D-4D2A-B982-40ACF15DF985
* Oracle Enterprise Manager Cloud Control combines configuration functionality across multiple file systems, along with listener administrative control to provide an integrated environment for configuring and managing Oracle Net Services. * Oracle Net Manager provides configuration functionality for an Oracle home on a local client or server host.

NEW QUESTION # 85
Which two statements are true about undo and undo tablespaces?

A. An undo tablespace may be owned by only one instance.
B. undo segments are owned by SYSTEM.
C. undo segments are owned by SYSBACKUP.
D. An instance will crash if the active undo tablespace is lost.
E. There can be only one undo tablespace created in a database.

Answer: A,D

NEW QUESTION # 86
Which two statements are true about the Automatic Diagnostic Repository (ADR)? (Choose two.)

A. It supports diagnostics for Oracle Clusterware
B. It is held inside an Oracle database schema
C. The ADR base defaults to $ORACLE_HOME/dbs if the DIAGNOSTIC_DEST parameter and the ORACLE_BASE environment variable are not set
D. The ADR base defaults to $ORACLE_HOME/rdbms/admin if neither DIAGNOSTIC_DEST nor ORACLE_BASE is set
E. It supports diagnostics for Automatic Storage Management (ASM)

Answer: B,D

Explanation:
https://docs.oracle.com/cd/E11882_01/install.112/e27508/admin.htm

NEW QUESTION # 87
The EMPLOYEES table contains columns EMP_ID of data type NUMBER and HIRE_DATE of data type DATE.
You want to display the date of the first Monday after the completion of six months since hiring.
The NLS_TERRITORY parameter is set to AMERICA in the session and, therefore, Sunday is the first day on the wee.
Which query can be used?

A. SELECT emp_id, NEXT_DAY(ADD_MONTHS(hire_date, 6), 'MONDAY') FROM employees;
B. SELECT emp_id, NEXT_DAY(ADD_MONTHS(hire_date, 6), 1) FROM employees;
C. SELECT emp_id, NEXT_DAY(MONTHS_BETWEEN(hire_date, SYSDATE), 6) FROM employees;
D. SELECT emp_id, ADD_MONTHS(hire_date, 6), NEXT_DAY('MONDAY') FROM employees;

Answer: A

NEW QUESTION # 88
Which three statements are true about the DESCRIBE command? (Choose three.)

A. It can be used to display the structure of an existing view
B. It displays the NOT NULL constraint for any columns that have that constraint
C. It displays the PRIMARY KEY constraint for any column or columns that have that constraint
D. It can be used from SQL Developer
E. It displays all constraints that are defined for each column
F. It can be used only from SQL *Plus

Answer: A,B,F

NEW QUESTION # 89
Which two statements are true about the Automatic Diagnostic Repository (ADR)? (Choose two.)

A. The ADR base defaults to $ORACLE_HOME/dbs if the DIAGNOSTIC_DEST parameter and the ORACLE_BASE environment variable are not set
B. The ADR base defaults to $ORACLE_HOME/rdbms/admin ifneither DIAGNOSTIC_DEST nor ORACLE_BASE is set
C. It supports diagnostics for Automatic Storage Management (ASM)
D. It supports diagnostics for Oracle Clusterware
E. It is held inside an Oracle database schema

Answer: C,D

Explanation:
The database, Oracle Automatic Storage Management (Oracle ASM), the listener, Oracle Clusterware, and other Oracle products or components store all diagnostic data in the ADR. https://docs.oracle.com/database/121/ADMIN/diag.htm#ADMIN11260

NEW QUESTION # 90
Which two tasks can be performed in the NOMOUNT state? (Choose two.)

A. enabling online redo log archiving
B. creating a database
C. full database recovery
D. renaming data files
E. re-creating control files

Answer: B,E

NEW QUESTION # 91
Which three statements are true about single-row functions? (Choose three.)

A. They return a single result row per table
B. The data type returned can be different from the data type of the argument
C. They can be nested to any level
D. The argument can be a column name, variable, literal or an expression
E. They can accept only one argument
F. They can be used only in the WHERE clause of a SELECT statement

Answer: B,C,D

NEW QUESTION # 92
Which two statements are true about Enterprise Manager Database Express? (Choose two.)

A. The same port number can be used for Database Express configurations for databases on different hosts
B. It can be used to perform database recovery
C. It is available only when the database is open
D. It can be used to switch a database into ARCHIVELOGMODE
E. The same port number can be used for multiple Database Express configurations for multiple databases on the same host

Answer: D,E

Explanation:
Explanation/Reference: https://docs.oracle.com/en/database/oracle/oracle-database/19/admqs/getting-started-with- database-administration.html#GUID-EB851101-07BE-4038-BB9D-06E01CC7F5D5

NEW QUESTION # 93
Which three are true about the Oracle Optimizer? (Choose three.)

A. It updates stale object statistics in the Data Dictionary.
B. It will only generate SQL Plan Directives specific to a given SQL statement.
C. It determines the optimal table join order and method.
D. It generates execution plans for SQL statements based on relevant schema objects, system and session parameters, and information found in the Data Dictionary.
E. It can optimize only SELECT statements.
F. It can re-optimize execution plans after previous executions detect suboptimal plans.

Answer: C,D,E

NEW QUESTION # 94
Which three statements are true about Deferred Segment Creation in Oracle databases?

A. Indexes inherit the deferred or immediate segment creation attribute from their parent table
B. It is supported for SYS-owned tables contained in locally managed tablespaces.
C. It Is supported for Index Organized Tables (IOTs) contained in locally managed tablespaces.
D. Sessions may dynamically switch back and forth from deferred to immediate segment creation.
E. It Is the default behavior for tables and indexes.

Answer: A,D,E

NEW QUESTION # 95
Which three statements are true about inner and outer joins? (Choose three.)

A. Outer joins can only be used between two tables per query
B. A left or right outer join returns only unmatched rows
C. A full outer join returns matched and unmatched rows
D. A full outer join must use Oracle syntax
E. Outer joins can be used when there are multiple join conditions on two tables
F. An inner join returns matched rows

Answer: B,C,F

NEW QUESTION # 96
Which two statements are true regarding a SAVEPOINT? (Choose two.)

A. Rolling back to a SAVEPOINT can undo a DELETE statement
B. A SAVEPOINT does not issue a COMMIT
C. Only one SAVEPOINT may be issued in a transaction
D. Rolling back to a SAVEPOINT can undo a TRUNCATE statement
E. Rolling back to a SAVEPOINT can undo a CREATE INDEX statement

Answer: A,B

NEW QUESTION # 97
Which two statements are true about the SET VERIFY ON command? (Choose two.)

A. It can be used only in SQL*Plus
B. It displays values for variables prefixed with &&
C. It displays values for variables used only in the WHERE clause of a query
D. It can be used in SQL Developer and SQL*Plus
E. It displays values for variables created by the DEFINE command

Answer: A,E

NEW QUESTION # 98
Which two statements are true about Enterprise Manager (EM) Express?

A. By default, EM express is available for a database after database creation using DBCA.
B. You can shut down a database instance using EM Express.
C. You cannot start up a database instance using EM Express.
D. EM Express uses a separate repository database to store target database metadata.
E. You can use a single instance of EM Express to manage multiple database running on the same server.

Answer: A,B

NEW QUESTION # 99
Which is true about security rules on a compute node?

A. A compute node port can be enabled only if it is associated with an existing security rule.
B. A security rule can restrict IP addresses that can connect to a database instance on a compute node.
C. The port used for HTTPS connections is enabled by default based on a predefined security rule.
D. A new database deployment on a compute node automatically enables a set of predefined security rules.
E. New security rules can be defined to use only the TCP protocol but multiple port numbers.

Answer: D

NEW QUESTION # 100
Which three statements are true about inner and outer joins? (Choose three.)

A. Outer joins can only be used between two tables per query
B. A left or right outer join returns only unmatched rows
C. A full outer join returns matched and unmatched rows
D. A full outer join must use Oracle syntax
E. Outer joins can be used when there are multiple join conditions on two tables
F. An inner join returns matched rows

Answer: B,C,F

Explanation:
Explanation/Reference: https://www.studytonight.com/dbms/joining-in-sql.php

NEW QUESTION # 101
Examine the description of the SALES1 table:

SALES2 is a table with the same description as SALES1.
Some sales data is duplicated in both tables.
You want to display the rows from the SALES1 table which are not present in the SALES2 table.
Which set operator generates the required output?

A. INTERSECT
B. MINUS
C. UNION ALL
D. UNION
E. SUBTRACT

Answer: B

NEW QUESTION # 102
Which two statements are true about Oracle synonyms?

A. A synonym has an object number.
B. A synonym can have a synonym.
C. All private synonym names must be unique in the database.
D. Any user can create a PUBLIC synonym.
E. A synonym can be created on an object in a package.

Answer: A,B

NEW QUESTION # 103
......

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Ace Oracle 1Z1-082 Certification with Actual Questions Jul 06, 2023 Updated [Q79-Q103]

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