CyberCertPrepSecurity FundamentalsNetworking FundamentalsEASYFree question
What network device operates at Layer 2 of the OSI model and uses MAC addresses to forward frames?
- A.Switch
- B.Router
- C.Repeater
- D.Modem
Why A is correct
A switch operates at the Data Link Layer (Layer 2) and uses MAC (Media Access Control) addresses to forward frames to the correct port. Unlike a hub, which broadcasts to all ports, a switch intelligently sends data only to the intended recipient.
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