INTRODUCTION
PROTOCOL LAYERING
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Every MAC address is 100% unique
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All network devices have a MAC address
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Routers and switches don’t need MAC addresses
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MAC addresses can tell you where a device is on the Internet
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Detailed explanation-1: -Just like each house has it’s own postal address, every device connected on a network has a Media Access Control (MAC) address, that uniquely identifies it.
Detailed explanation-2: -A MAC address consists of 12 hexadecimal digits, usually grouped into six pairs separated by hyphens. MAC addresses are available from 00-00-00-00-00-00 through FF-FF-FF-FF-FF-FF. The first half of the number is typically used as a manufacturer ID, while the second half is a device identifier.
Detailed explanation-3: -MAC address is the physical address, which uniquely identifies each device on a given network. To make communication between two networked devices, we need two addresses: IP address and MAC address. It is assigned to the NIC (Network Interface card) of each device that can be connected to the internet.