Ethernet uses ………… physical address that is imprinted on the Network Interface…
2022
Ethernet uses ………… physical address that is imprinted on the Network Interface Card (NIC).
- A.
48-bits
- B.
48-bytes
- C.
4-bytes
- D.
128-bits
Attempted by 114 students.
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Correct answer: A
An Ethernet physical address (MAC address) consists of 48 bits (or 6 bytes).
Structure: It is usually represented in hexadecimal format, such as
00:1A:2B:3C:4D:5E.Components: The first 24 bits represent the Organizationally Unique Identifier (OUI), which identifies the manufacturer. The remaining 24 bits are assigned by the manufacturer to uniquely identify the specific hardware.
Permanence: Unlike an IP address, which is assigned logically by a network, the MAC address is "burned-in" or imprinted on the NIC at the time of manufacturing.