In a smart home, a device that communicates directly with other devices without a central server demonstrates which communication model?

In a smart home, a device that communicates directly with other devices without a central server demonstrates which communication model?

• A. Client-server
• B. Peer-to-peer
• C. Device-to-device
• D. Cloud-based

Answer: (C)

Direct interaction between devices without a central server is best described as device-to-device communication. In a smart home, this means devices talk to each other locally—over short-range protocols like Bluetooth, Zigbee, or Matter—without routing commands through a hub or cloud. This setup reduces latency and dependence on a remote server, which is why it’s categorized as device-to-device. While peer-to-peer can also describe direct device interactions, the emphasis here is on the established device-to-device model where each device communicates with others itself rather than relying on an intermediary that mediates all traffic. The other options imply routes through a central destination: client-server relies on a central server, and cloud-based depends on cloud infrastructure to relay data.

Direct interaction between devices without a central server is best described as device-to-device communication. In a smart home, this means devices talk to each other locally—over short-range protocols like Bluetooth, Zigbee, or Matter—without routing commands through a hub or cloud. This setup reduces latency and dependence on a remote server, which is why it’s categorized as device-to-device.

While peer-to-peer can also describe direct device interactions, the emphasis here is on the established device-to-device model where each device communicates with others itself rather than relying on an intermediary that mediates all traffic. The other options imply routes through a central destination: client-server relies on a central server, and cloud-based depends on cloud infrastructure to relay data.