Computer Science for IGCSE & O level - Data Transmission (Section 5 - No. 31)
What is a 'MAC address' used for?
To identify a device on a network at the data link layer.
To identify a website on the internet.
To encrypt data.
To route traffic between networks.
Explanation
A MAC address is a unique identifier assigned to a network interface card (NIC) used to identify devices on a local network.