Multi-hop communication helps WSN nodes:
Correct Answer: D. Forward data over longer distances through intermediate nodes
MCQ Collection
Internet of Things (IoT) MCQs
Internet of Things MCQs for students, university exams, smart devices, sensors, networks, and technology-related preparation.
The application layer is mainly concerned with:
Correct Answer: D. Services and data exchange used by applications
Which part of an IoT node measures physical variables?
Correct Answer: D. Sensing unit
Which device is often placed between constrained IoT nodes and the cloud?
Correct Answer: D. IoT gateway
The main reason energy efficiency is important in WSNs is that many nodes:
Correct Answer: A. Operate on limited battery power
Congestion in a network occurs when:
Correct Answer: A. Traffic load exceeds available network capacity
What is the main role of the MAC layer?
Correct Answer: A. Control access to the shared communication medium
Which wireless technology is commonly available in homes and offices?
Correct Answer: A. Wi-Fi
Which part of an IoT node sends or receives data?
Correct Answer: A. Communication unit
Which is a role of middleware in IoT?
Correct Answer: A. Support integration, data management, and communication between components
Which topology allows nodes to relay data through other nodes?
Correct Answer: B. Mesh topology
Reliability in IoT communication refers to:
Correct Answer: B. Successful and consistent delivery of data