Discussion
Identify the correct sequence for implementing sensors in IOT :
Answer: B
The key gives sensing, data acquisition, conversion and communication.
An IoT sensor node starts by sensing the physical quantity. Data acquisition then collects the sensor output and conditions it, the signal is converted into digital form (analog to digital conversion), and the digital data is finally sent to the network by the communication module. Any order that puts communication before the data exists in digital form, as in option D, cannot work, and a chain that starts with data acquisition, as in option A, has nothing to acquire yet.
The difference between B and C is only whether acquisition comes before conversion. Descriptions of the IoT sensing chain differ on this, and I could not find a source that settles it, so B stands on the University's key and on the reading that acquisition (collecting and conditioning the signal) precedes digitisation.
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