COMPUTER SCIENCE AND ENGINEERING
COMPUTER NETWORKING
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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One can be changed and the other can’t
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They are both the same
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They’re addresses
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None of the above
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Detailed explanation-1: -The primary use of a MAC address is to ensure the physical address of a given device/ computer. The IP address, on the other hand, defines a computer’s logical address. The MAC address primarily operates on the data link layer. The IP address primarily operates on the network layer.
Detailed explanation-2: -First, MAC addresses never change and are only used in the local network, while IPs identify network devices globally and can change depending on your location. Also, while MAC addresses are assigned by the hardware manufacturer, IP addresses are assigned by the network admin or ISP (internet service provider).
Detailed explanation-3: -The physical address–which is also called a media access control, or MAC, address–identifies a device to other devices on the same local network. The internet address–or IP address–identifies the device globally. A network packet needs both addresses to get to its destination.
Detailed explanation-4: -The MAC address that is hard-coded on a network interface controller (NIC) cannot be changed. However, many drivers allow the MAC address to be changed. Additionally, there are tools which can make an operating system believe that the NIC has the MAC address of a user’s choosing.