The MAC address of your NIC is 0A123C4B67DE Which of the fol

The MAC address of your NIC is 0A:12:3C:4B:67:DE. Which of the following represents the organizationally unique identifier?

A. 0A:12:3C

B. 4B:67:DE

C. 12:3C:4B

D. 3C:4B:67

Solution

A is correct. The OUI is the first half of a MAC address.

B, C, and D are incorrect. B is incorrect because the last six hex digits are the NIC’s unique ID assigned by the manufacturer. C and D are incorrect for the OUI.