AVIXA Recognized AV Technologist Test

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Which of the following is the hardware address of a device connected to a network?

IP
Subnet mask
MAC
Gateway

The correct answer is: MAC

The hardware address of a device connected to a network is the MAC (Media Access Control) address. This unique identifier is assigned to network interfaces for communications at the data link layer of a networking model. Every network interface card (NIC) has a MAC address that usually consists of six groups of two hexadecimal digits. It is essential for enabling devices on a local network to identify and communicate with each other directly. In contrast, an IP (Internet Protocol) address is used for identifying devices on a broader network, such as the Internet, and it can change based on the network to which a device is connected. The subnet mask helps in defining the range of IP addresses within a network and does not serve as an address for the device itself. A gateway acts as a node that routes traffic from one network to another but does not function as a hardware address for a specific device. Therefore, the recognition of the MAC address as the hardware address is critical in the context of networking.