700-821 Sensors Practice Questions
The free 700-821: Cisco IoT Essentials for System Engineers questions that deal with sensors, with answers and explanations. The full bank and the timed practice test cover every topic the exam asks about.
Question #1
You are implementing an IoT solution that needs to gather data from various sensors. Which protocol is most suitable?
Correct answer: B
Explanation
MQTT is a lightweight messaging protocol ideal for IoT applications that require low-bandwidth and low-power consumption.
Question #5
A manufacturing plant uses IoT sensors for predictive maintenance. What is the primary benefit of this implementation?
Correct answer: B
Explanation
Predictive maintenance helps in identifying potential failures in machinery before they occur, thus reducing operational costs associated with downtime and repairs.
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