Certified Ethical Hacker (CEH v12) — Question 77

George is a security professional working for iTech Solutions. He was tasked with securely transferring sensitive data of the organization between industrial systems. In this process, he used a short-range communication protocol based on the IEEE 203.15.4 standard. This protocol is used in devices that transfer data infrequently at a low rate in a restricted area, within a range of 10-100 m.
What is the short-range wireless communication technology George employed in the above scenario?

Answer options

• A. LPWAN
• B. MQTT
• C. NB-IoT
• D. Zigbee

Correct answer: D

Explanation

The correct answer is D, Zigbee, as it operates under the IEEE 802.15.4 standard and is designed for short-range, low-rate communication in restricted areas. The other options, such as LPWAN, MQTT, and NB-IoT, do not specifically align with the characteristics of Zigbee regarding range and data transfer frequency.