Which factor is explicitly listed as a consideration when evaluating IoT wireless technologies in the material?

• A. Power
• B. Security
• C. Data transfer rate
• D. Overall efficiency

Answer: (B)

Security is highlighted because IoT wireless deployments face real threats to data and devices across wireless links. The material emphasizes protecting confidentiality, integrity, and authenticity, as well as safeguarding devices from tampering and unauthorized access. To achieve this, it points to measures like encryption of data in transit, strong authentication of devices and gateways, secure key management, and trusted update mechanisms. These protections are essential irrespective of how low the power use is, how high the data rate might be, or how efficient the system appears, because without security, the other factors can be undermined by attacks or misuse. While power, data transfer rate, and overall efficiency matter for practicality and performance, security is the explicit consideration the material calls out, making it the best fit.