What technology is used to connect devices with no built Wi-Fi connectivity to the internet?

• A. Ethernet over Power
• B. Extranet
• C. Failover
• D. False Negative

Answer: (A)

Ethernet over Power, or Powerline networking, uses the building’s electrical wiring to carry network signals, letting devices without Wi‑Fi connect to the internet. You plug a Powerline adapter near your router and connect it with Ethernet; another adapter goes near the device to provide wired (or, with some adapters, wireless) access. This is handy when running Ethernet cables isn’t practical or Wi‑Fi coverage is weak. Real-world performance can vary based on wiring, electrical noise, and circuit layout, but it offers a practical bridge to connect non‑Wi‑Fi devices.

Extranet is about securely sharing internal resources with external parties over the internet, not about delivering connectivity through power lines. Failover refers to switching to a backup link if the primary connection fails, which is a redundancy concept rather than a method to connect non‑Wi‑Fi devices. A false negative is a testing term describing an incorrect negative result, not a networking technology.