Question

What is the primary difference between a MAC address and an IP address?

A A MAC address changes frequently while an IP address is permanent
B A MAC address is a logical address used for routing across networks, while an IP address is a physical address assigned to a network interface
C A MAC address operates at Layer 3 while an IP address operates at Layer 2
D A MAC address is a physical address assigned to a network interface, while an IP address is a logical address used for routing across networks
E IP addresses are only ever used within local area networks whereas MAC address can be used only for wide area networks
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