Relational Database Design Quiz

What components make up the Oracle server technologies?

• Oracle database, Oracle WebLogic Server, Oracle Enterprise Manager, and application development tools and languages.

• Oracle database and SQL*Plus only.

• Oracle WebLogic Server and Java only.

• Oracle Enterprise Manager and Cloud Control only.

What is the primary role of the Oracle database within the Oracle product set?

• To generate web user interfaces.

• To run application servers centrally.

• To serve as the repository for data and the engine that manages access to it.

• To provide comprehensive administration tools.

In the client-server processing model implemented by the Oracle server, what is the role of the client tier?

• To execute SQL commands directly against the database.

• To manage the data exclusively.

• To generate the user interface and much of the application logic, including SQL commands.

• To run all applications centrally on application servers.

Which analogy is often used to describe how computing resources are provided to end users in a cloud environment?

• A local area network connection.

• Delivery of domestic electricity, supplied on demand without knowing the source.

• A client-server split across different geographical locations.

• A single, dedicated server managing all IT operations.

What is SQL primarily used for in the context of application development?

• Developing complete user interfaces.

• Manipulating rows individually with procedural structures.

• Data access, but not for developing complete applications.

• Writing system-level code like C or Java.

What is critical to understanding SQL and involves modeling business data into a form suitable for storing in relational tables?

• Cloud Computing.

• Oracle WebLogic Server.

• Normalization.

• Object-oriented database design.

What problem does unnecessary duplication of data in a database design typically indicate, and what can it lead to?

• Efficient data storage, leading to improved performance.

• Poor design, leading to wasteful storage and potential integrity errors (anomalies).

• Optimal balance between storage and access, ensuring long-term cost savings.

• Flexibility in data manipulation, enabling faster retrieval.

What does First Normal Form (1NF) primarily address in relational database design?

• Ensuring all columns have unique values.

• Eliminating unnecessary repeating groups of data.

• Defining links between tables with foreign keys.

• Allowing a single car to be bought and sold multiple times.

How does the relational paradigm model data?

• As hierarchical structures with parent-child relationships.

• As two-dimensional tables consisting of rows and columns.

• As object-oriented structures with user-defined types.

• As single, unbounded text documents.

Which international bodies manage the SQL standard?

• Oracle Corporation and IBM.

• Microsoft and PostgreSQL Global Development Group.

• ISO and ANSI.

• McGraw-Hill Education and Oracle University.