What types of services are categorized under Access Based Services?

Access Based Services primarily refer to the types of services that provide users with connectivity to network resources and are typically distinguished by their utility in facilitating communication. Among the choices provided, voice and video services fit within this category because they directly rely on network access to enable real-time communication and content delivery.

Voice services involve transmitting audio signals over the network, allowing users to communicate through telephone calls, and video services facilitate real-time or on-demand visual communication, such as video conferencing or streaming video content. Both are essential for enhancing user engagement and interaction in various applications, thus fitting the criteria of access-based services, which are designed to offer direct access to communication channels.

The other options contain services that either emphasize data transmission without a direct communication aspect or do not primarily provide access to a network's communication capabilities. For instance, while data and email are essential for information exchange, they are not primarily categorized under access-based services in the same direct manner as voice and video. Understanding the core functionality of access-based services helps in identifying their role within a network service portfolio.