Which challenge comes under securing the information?

• A. Security
• B. Signaling
• C. Presence detection
• D. Power consumption

Answer: (A)

Securing information means guarding data from unauthorized access and tampering, preserving confidentiality, integrity, and availability. In IoT, this involves encryption of data in transit and at rest, strong authentication, access control, secure key management, and secure software updates so data and devices aren’t compromised. This is why the challenge described is security. The other topics address different concerns: signaling deals with how devices exchange messages and coordinate actions; presence detection is about determining whether a device is on the network; power consumption concerns how much energy devices use.