What is the name of the address that is used by a switch to identify specific devices?
A) MAC
B) IP
C) LLC
D) ARP
A
Explanation: The Media Access Control (MAC) address is used by switches (at Layer 2 ) to identify specific devices. This address is typically set by the hardware manufacturer. This address is used for LAN communications only and is not used across routed (routers) devices (that is, the MAC addresses change when traffic flows through a router). It is possible to figure out the manufacturer of a network interface card (NIC) on a network by performing an analysis of the MAC address it is using to communicate.
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