Which statement best describes a security benefit of fog computing in IoT architecture?

• A. It acts on IoT data closer to the source
• B. It creates unclear connections that are difficult to intercept
• C. It reduces the need for remote management
• D. It scrambles electronic signals and encrypts all data

Answer: (A)

Processing data close to where it’s generated improves security because sensitive information spends less time traveling across networks where it could be intercepted or tampered with. Fog computing puts compute, storage, and decision-making at the edge, so initial data filtering, anomaly detection, and access controls can happen locally. This reduces the amount of data sent upstream, lowers the chance of data exposure in transit, and allows faster protective actions when a threat is detected. That’s why the statement about acting on IoT data closer to the source best describes the security benefit. The other options aren’t as accurate: fog computing doesn’t inherently create “unclear” connections or reduce the need for remote management as a security feature, and encryption or scrambling of data isn’t automatic just because processing is moved to the edge. Security depends on proper implementation, but edge processing directly addresses exposure by keeping more data at or near the source.