NetworkingPregunta 36 de 100
Which device operates primarily at Layer 2 and forwards frames based on MAC addresses?
a.Hub
b.Modem
c.Router
d.Switch
Explicación
A switch learns MAC addresses and forwards frames only to the correct port at Layer 2. A hub blindly repeats to all ports, a router works at Layer 3, and a modem modulates signals for the ISP link.
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