Which portion of the MAC address indicates the manufacturer of the Network Interface Card (NIC)?

  • The entire MAC address.
  • The first six hexadecimal characters (24 bits) of the MAC address.
  • The last six hexadecimal characters (24 bits) of the MAC address.
  • The middle six hexadecimal characters (24 bits) of the MAC address.
The first six hexadecimal characters of the MAC address are known as the Organizationally Unique Identifier (OUI) and are assigned to NIC manufacturers. These characters help identify the manufacturer of the NIC.
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