CompTIA Network+

Answer: C - Switches can be considered “Layer 2” networking devices.

Key Takeaway: While there are more than one types of switches, and some can be considered different layered switches, the traditional “switch” is going to look at the MAC address of the data before forwarding it to the destination node, and is considered a “layer 2” (Data Link) device. A Hub and a Repeater are both considered “Layer 1” (Physical) devices because they do not look at the data at all before performing their operations. A router is considered a “Layer 3”(Network) device in its traditional sense because it looks at the IP address of the data packet before routing it to its destination.