220-801 · Question #459
Network cards have a unique hex number assigned to every unit. This number is known as which of the following?
The correct answer is D. MAC address. A MAC (Media Access Control) address is a 48-bit (6-byte) hardware identifier burned into every network interface card (NIC) at the factory. It is expressed as 12 hexadecimal characters (e.g., 00:1A:2B:3C:4D:5E) and is designed to be globally unique. An IP address (A) is a…
Question
Network cards have a unique hex number assigned to every unit. This number is known as which of the following?
Options
- AIP address
- BLUN
- CNetwork ID
- DMAC address
How the community answered
(38 responses)- B3% (1)
- C5% (2)
- D92% (35)
Explanation
A MAC (Media Access Control) address is a 48-bit (6-byte) hardware identifier burned into every network interface card (NIC) at the factory. It is expressed as 12 hexadecimal characters (e.g., 00:1A:2B:3C:4D:5E) and is designed to be globally unique. An IP address (A) is a logical, software-assigned address that can change. A LUN (B) is a Logical Unit Number used in storage networks, not for NIC identification. A Network ID (C) refers to the network portion of an IP address, not a hardware identifier.
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