Question 1

In Oracle Database security,a Role can have many system privileges.

Accepted Answer

A role can have multiple system privileges assigned to it, which can then be granted to users or other roles.

Question 2

The NextVal method provides the next value in a sequence.

Accepted Answer

The NextVal method is used in SQL to provide the next value in a sequence.

Question 3

The Oracle Enterprise Manager Database Express 12c is a Web-based Oracle Database administration utility.

Accepted Answer

The statement is correct. Oracle Enterprise Manager Database Express 12c is a Web-based tool used for administering Oracle Databases.

Question 4

The Oracle Database GUI tool used for application development is the Oracle SQL Developer.

Accepted Answer

Oracle SQL Developer is a GUI tool used by developers to build, test, and debug their SQL and PL/SQL code.

Question 5

Among its many functions,SQL*Plus is also a programming language.

Accepted Answer

SQL*Plus is a command-line tool for accessing Oracle Database; it is not a programming language but rather a utility for executing SQL and PL/SQL commands, and for performing various database administration tasks.

Question 6

The CurrVal method provides the current value in a sequence.

Accepted Answer

The CurrVal method is used in SQL to retrieve the current value of a sequence.

Question 7

The default file extension for text files created for SQL Developer is .sql.

Accepted Answer

The default file extension for text files created for SQL Developer is indeed .sql. This is because SQL Developer is primarily used for writing SQL queries and commands, which are conventionally saved with the .sql extension.

Question 8

Instead of creating a new database instance in Oracle Database,it is preferable to create a new tablespace.

Accepted Answer

Creating a new tablespace is a more efficient and practical approach than creating a new database instance. It allows for better organization of data, easier management of storage allocation, flexibility in backup and recovery strategies, and scalability for future growth. Creating a new database instance is a more drastic measure and is typically reserved for specific scenarios, such as creating a dedicated test environment or separating certain applications from others for security reasons.

Question 9

Oracle Database supports the ON UPDATE CASCADE constraint.

Accepted Answer

Oracle Database does not support the ON UPDATE CASCADE constraint directly; it requires implementing workarounds, such as using triggers, to achieve similar functionality.

Question 10

An Oracle Database tablespace is a logical subdivision of an Oracle database instance that is used to group related tables,views,and other similar objects.

Accepted Answer

This is true, a tablespace is indeed a logical subdivision used for organizing related database objects within an Oracle database instance.

Question 11

Each Oracle Database tablespace has one or more datafiles associated with it.

Accepted Answer

Each tablespace can have one or more datafiles associated with it to store data.

Question 12

When creating a new database in Oracle Database,two new account passwords are automatically created in the database.

Accepted Answer

When creating a new database in Oracle, the database does not automatically create two new account passwords. Instead, the database administrator must specify or create user accounts and their passwords as part of the database creation or configuration process.

Question 13

The Oracle Database Configuration Assistant is the easiest Oracle Database tool to use when you are creating an Oracle database.

Accepted Answer

The Oracle Database Configuration Assistant is designed to simplify the process of creating an Oracle database by providing a graphical user interface that guides users step-by-step through the process. It is considered the easiest tool to use for this purpose.

Question 14

With Oracle Database,using a sequence does not guarantee valid surrogate key values.

Accepted Answer

While using a sequence can provide unique identifier values for a surrogate key, the values generated may not necessarily be valid for the business use case or requirements. It is still important to ensure that the sequence and table design are properly configured to generate and store valid surrogate keys.

Question 15

In Oracle Database security,a System Privilege is the right to execute general tasks such as performing some action on the database data.

Accepted Answer

System Privileges are given to a user to perform general tasks in the database such as creating, altering, or dropping database objects, managing users, or executing some system-level commands. Examples of System Privileges include CREATE TABLE, DROP USER, and ALTER SYSTEM, among others.

Question 16

Sequences are most often used to provide values for surrogate keys.

Accepted Answer

Sequences are commonly used to generate unique values for surrogate keys in databases. Surrogate keys are used to uniquely identify each record in a table and are typically implemented as an auto-incrementing integer. Sequences allow for the generation of unique and sequential numbers, making them well-suited for use as surrogate keys.

Question 17

The Oracle Database FORMAT_DATE function can be used to make sure that Oracle Database interprets date data correctly.

Accepted Answer

Oracle Database does not have a function named FORMAT_DATE; instead, it uses functions like TO_DATE for converting strings to date values and TO_CHAR for formatting dates as strings.

Question 18

When using Oracle Database,a sequence is an object that generates a sequential series of unique numbers.

Accepted Answer

Sequences in Oracle Database are objects used to generate a sequential series of unique numbers.

Question 19

Oracle Database provides only one method for creating an Oracle Database database.

Accepted Answer

Oracle Database provides multiple methods for creating an Oracle database, including using the Oracle Universal Installer, Database Configuration Assistant, or manually through SQL commands.

Question 20

With Oracle Database,data must be entered at the Oracle Database command prompt.

Accepted Answer

Data can be entered through various methods such as SQL Developer, SQL*Plus, Oracle Applications, and other third-party tools. It is not necessary to use only the Oracle Database command prompt for data entry.

Quiz 11: Managing Databases With Oracle Database