What technology does CDPD utilize for mobile network connections?

The correct answer is Cellular Digital Packet Data, or CDPD, which is specifically designed for mobile network connections. This technology provides a means for transmitting data over cellular networks, allowing users to access the Internet and send/receive data packets while on the move. CDPD operates by utilizing existing cellular infrastructure, enabling mobile devices to connect to packet-switched networks. This capability supports various applications such as mobile email and real-time data access, making it suitable for effective mobile communication.

In contrast, the other choices represent different types of connectivity that either do not pertain to mobile networking, like wired Ethernet connections and satellite internet, or are not focused specifically on the packet data aspect of connectivity that CDPD is designed for. Wi-Fi enabled devices are designed for local area networking rather than the broad reach of mobile cellular networks, highlighting that only the Cellular Digital Packet Data option aligns precisely with the technology that enables mobile network connections.