Which of the following best describes internal applications?

The description of internal applications as restricted to use by employees only highlights the primary characteristic that distinguishes them from other types of applications. Internal applications are typically designed to support the operational needs of an organization, providing tools that assist employees in performing their tasks efficiently and effectively. These applications often include functionalities such as resource management, internal communication, and collaboration features, tailored specifically for personnel within the organization.

This restriction ensures that sensitive company data and resources are safeguarded from external access, allowing for a controlled environment where employees can work securely. As a result, internal applications are integral to enhancing productivity, streamlining processes, and supporting the strategic goals of the company.

In contrast, options that describe accessibility by the public or availability to customers do not align with the nature of internal applications, as these features typically apply to external applications designed for a broader audience. Similarly, while internal applications may involve data collection, that is not their primary defining feature, which is focused on usage restrictions for employee access.