Which term refers to the structured storage of data that can be accessed by online applications?

The term that refers to the structured storage of data that can be accessed by online applications is a database. Databases are designed to efficiently store, retrieve, and manage data in a structured format, making it easier for applications to interact with the stored information. They use tables and schemas to organize data systematically, allowing for fast queries and data manipulation.

Online applications rely on databases to access the necessary data they need to function, whether it be for user information, transactional data, or application-specific data. This structured approach is essential for maintaining data integrity and ensuring that applications can perform effectively and securely.

Other terms listed do not pertain to the structured storage of data for online applications. Data mining refers to the process of analyzing large datasets to uncover patterns and insights but does not indicate storage. A demilitarized zone usually relates to a network architecture that offers an additional layer of security between an internal network and an external one. Degaussing involves the process of demagnetizing storage devices to erase data but is not related to ongoing access or storage of structured data.