In the context of normalization, what is a primary key?

A key used for accessing the database management system.

A unique identifier for a table's records, used to establish relationships.

A key used to encrypt sensitive data in the database.

A key used to authorize user access to the database.

Which of the following statements best describes the concept of normalization in a relational database?

Normalization is the process of combining tables to reduce data redundancy.

Normalization is the process of breaking down tables to eliminate data redundancy and anomalies.

Normalization is the process of creating indexes to improve query performance.

Normalization is the process of securing a database by implementing access control.

In a relational database, what is the purpose of a foreign key?

A foreign key ensures data redundancy.

A foreign key is used to access data from remote servers.

A foreign key establishes a link between tables, referencing the primary key of another table.

A foreign key is used to encrypt sensitive data in the database.

What is the primary purpose of a database management system (DBMS)?

To provide a graphical user interface for end users.

To generate reports and perform analytics on data.

To define, manipulate, retrieve, and manage data in a structured manner.

To create backup copies of data on a regular basis.

What is the primary goal of normalizing a database?

To maximize data redundancy for better performance.

To create complex queries for reporting purposes.

To eliminate data anomalies and ensure data integrity.

To optimize database storage space.

What is the purpose of creating views in a database?

Views are used to store sensitive data securely.

Views help in optimizing query performance.

Views provide a way to define access permissions for users.

Views present a customized and simplified representation of data from multiple tables.

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