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Cisco Certified Network Associate (CCNA) · Cisco
Select 3 answers.
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MAC address is preassigned shouldn't be modified for most case and it is switch layer information, IP/network is Router layer information.
this is the most closest of answers you can get for the mac address definition. A. To communicate with other devices on a network, a network device must have a unique MAC address D. A MAC address contains two main components, the first of which identifies the manufacturer of the hardware and the second of which uniquely identifies the hardware E. An example of a MAC address is 0A:26:B8:D6:65:90
0A:26:B8:D6:65:90 a mac address first componet identifies the manufacture of the hardware 0A:26:B8 second componet is the uniquely idetifies the hardware :D6:65:90