Which of the following are true about the format of Ethernet addresses? (Choose three answers.)

IT Questions BankCategory: CCNAWhich of the following are true about the format of Ethernet addresses? (Choose three answers.)

Which of the following are true about the format of Ethernet addresses? (Choose three answers.)

  • a. Each manufacturer puts a unique OUI code into the first 2 bytes of the address.
  • b. Each manufacturer puts a unique OUI code into the first 3 bytes of the address.
  • c. Each manufacturer puts a unique OUI code into the first half of the address.
  • d. The part of the address that holds this manufacturer’s code is called the MAC.
  • e. The part of the address that holds this manufacturer’s code is called the OUI.
  • f. The part of the address that holds this manufacturer’s code has no specific name.

Explanation: The pre-assigned universal MAC address, given to each Ethernet port when manufactured, breaks the address into two 3-byte halves. The first half is called the organizationally unique identifier (OUI), which the IEEE assigns to the company that builds the product as a unique hex number to be used only by that company.

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