Which statement about wireless bridges is consistent with common network behavior?

• A. They must always operate in pairs
• B. They can operate alone
• C. They cannot connect to Ethernet devices
• D. They require an external power injector

Answer: (A)

Wireless bridges connect a wired Ethernet segment to a wireless network, functioning at Layer 2. Because the wireless side can link to an access point or another bridge, a single bridge device can enable a wired device to access the Wi‑Fi network without needing a partner bridge at the same site. Pairs are only necessary when you’re bridging two entire LANs across wireless, not for every everyday use. So operating alone is a common, valid behavior of wireless bridges.

They do connect to Ethernet devices, which is the whole point of a bridge. And power needs vary by model—some use a wall adapter, others can be powered over PoE—so a separate power injector isn’t universally required.