Which layer often uses routing protocols to deliver packets?
Correct Answer: D. Network layer
Practice Library
All MCQs
Browse exam-wise, subject-wise, and country-wise MCQs with explanations.
Which layer often uses protocols such as MQTT, CoAP, and HTTP?
Correct Answer: C. Application layer
Which node component usually converts analog sensor signals into digital values?
Correct Answer: B. Analog-to-digital converter
Which function is commonly handled by an IoT gateway?
Correct Answer: A. Protocol translation
Which kind of architecture sends most data to remote internet services?
Correct Answer: D. Cloud-centric architecture
Which kind of architecture places computation near devices?
Correct Answer: C. Edge architecture
Which term describes many different device types working in one IoT ecosystem?
Correct Answer: B. Heterogeneity
Which is a key design requirement for IoT nodes?
Correct Answer: A. Small size, low power, and reliable connectivity
Which architecture element is closest to the physical world?
Correct Answer: D. Sensor and actuator layer
Which architecture element often stores large amounts of IoT data?
Correct Answer: C. Cloud platform or database
What is the role of the application in an IoT system?
Correct Answer: B. Provide meaningful functions such as monitoring, alerts, or control
Which is a proper example of actuation in IoT?
Correct Answer: A. Opening a valve after soil moisture becomes low