フリー問題

問題文

A logistics operator reviews a design in which trailers report location every five minutes over a cellular link that is billed per megabyte and shows gaps in tunnels. Which element of the Networks of Things model is the operator examining when it studies those gaps and that billing?

選択肢

1. The gaps and the billing are properties of the communication channel.
2. The gaps and the billing are properties of the decision trigger.
3. The gaps and the billing are properties of the cellular eUtility.
4. The gaps and the billing are properties of the location sensor.