Câu 106: 312-50V13: Certified Ethical Hacker v13

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?

1. A. LPWAN
2. B. MQTT
3. C. NB-IoT
4. D. Zigbee — đáp án hiện tại