Oracle Database Management: Intermediate-Level Quiz

Oracle Database Management Quiz

Welcome to the "Oracle Database Management" quiz! This quiz tests your knowledge of key practices like performance tuning, backup and recovery, and security management. Whether preparing for a database role or enhancing your skills, let's dive in!

1 / 20

Which of the following SQL phrase is not supported by Oracle?

DROP SEQUENCE [SequenceName]

CREATE SEQUENCE [SequenceName]

ON UPDATE CASCADE

ON DELETE CASCADE

2 / 20

MySQL belongs to which category of database management systems?

Network DBMS

Hierarchical DBMS

Object-oriented DBMS

Relational DBMS

3 / 20

Which of the following is not true of SQL views?

Using the Oracle Database Configuration Assistant

Using the SQL CREATE DATABASE command

Using the Oracle-supplied database creation procedures

None of the above is correct

4 / 20

An Oracle System Change Number (SCN):

is a value that is incremented whenever a dirty read occurs.

is a value that keeps track of explicit locks

is incremented whenever a deadlock occurs

is a value that is incremented whenever database changes are made

5 / 20

What Oracle backup and recover file contains user and system data?

Offline ReDo file

Control file

OnLine ReDo file

Datafile

6 / 20

Which processes is an instance made of Oracle?

Memory processes

Data processes

Oracle background processes

All of the Mentioned

7 / 20

What is the purpose of the Oracle Database?

It manages the memory and process structures used by the database

It provides access to the data stored in the database

It stores and manages the data used by the application

All of the above

8 / 20

The default extension for an Oracle SQL*Plus file is:

.sql

.txt

.ora

.pls

9 / 20

Which of the following is the oldest database model?

Network

Deductive

Relational

Physical

10 / 20

What is the purpose of the Oracle Data Dictionary?

It stores information about the users of the database

It stores information about the backup and recovery of the database

It stores information about the performance of the database

It stores information about the structure of the database

11 / 20

Which of the following is not true about modifying table columns?

You can add a column at any time as long as it is a NULL column

You cannot increase or decrease the number of decimal places

You can drop a column at any time

You can increase the number of characters in character columns or the number of digits in numeric columns

12 / 20

What is the purpose of the Oracle Instance?

It manages the memory and process structures used by the database

It stores information about the backup and recovery of the database

It provides access to the data stored in the database

It stores information about the users of the database

13 / 20

Which of the following database was designed first for enterprise gridcomputing?

SQL

Google database

Oracle database

MongoDB

14 / 20

An Oracle Data Indicator is a database management system that offers a structured data structure for monitoring IT resources within companies and managing security and versioning objects of data models. True or False?

True

False

15 / 20

How many layers does the Oracle database have?

16 / 20

Which of the following is not true about modifying table columns?

You can increase the number of characters in character columns or the number of digits in numeric columns

You cannot increase or decrease the number of decimal places

You can drop a column at any time

You can add a column at any time as long as it is a NULL column

17 / 20

After a table has been created, its structure can be modified using the SQL command;

CHANGE TABLE [TableName]

ALTER TABLE [TableName]

UPDATE TABLE [TableName]

MODIFY TABLE [TableName]

18 / 20

Oracle allows the ORDER BY clause in view definitions. True or False?

True

False

19 / 20

To obtain the structure of an Oracle table, the command to use is:

DESC TABLE [TableName]

STRUCTURE [TableName]

DESCRIBE [TableName]

DESCRIBE STRUCTURE [TableName]

20 / 20

SQL*Plus will finish the statement and execute it when the user types in this:

A semicolon ( ; ) followed by [Enter]

A left slash ( ) followed by [Enter]

A colon ( : ) followed by [Enter]

A period ( . ) followed by [Enter]

Your score is

The average score is 0%

Oracle database management covers the core concepts and tasks of maintaining, configuring, and optimizing an Oracle database.

This includes user management, storage configuration, performance tuning, backups, and security settings.

This quiz is essential for database administrators and developers to ensure the database operates efficiently and securely.

All the best!