LQI is commonly used to estimate:
Correct Answer: D. Link quality in wireless communication
MCQ Collection
Semester Exam MCQs
Semester Exam preparation MCQs for university and college students. This section includes subject-wise practice questions, answers, and explanations to help learners prepare for midterm exams, final exams, quizzes, and academic tests.
Which is a key limitation of Wi-Fi for small battery-powered sensors?
Correct Answer: D. Higher power consumption compared with some low-power options
Which metric is useful for evaluating routing quality?
Correct Answer: D. ETX
In IoT architecture, the perception layer is often responsible for:
Correct Answer: D. Sensing and identifying objects
Which of the following is NOT usually an IoT goal?
Correct Answer: A. Keeping all devices permanently disconnected
What does BLE stand for?
Correct Answer: A. Bluetooth Low Energy
ETX in routing metrics estimates:
Correct Answer: A. Expected number of transmissions needed for successful delivery
Which option best suits low-power IPv6 networking over IEEE 802.15.4?
Correct Answer: A. 6LoWPAN
Which communication technology is often used in smart meters and low-power wide coverage Wi-Fi IoT?
Correct Answer: A. IEEE 802.11ah
The network layer in IoT mainly handles:
Correct Answer: A. Data transmission and routing between devices and services
Which IoT feature helps improve decision making?
Correct Answer: B. Continuous data collection and analytics
Which technology is often used for low-power mesh networking in IoT?
Correct Answer: B. ZigBee