Network Essential Version C (LE) Practice Test

Which statement about a MAC address is true?

It is a 64-bit address. It is assigned by DHCP. It is a virtual address used by software. It is a 48-bit hardware address assigned to a network interface.

Correct Answer:

It is a 48-bit hardware address assigned to a network interface.

Explanation:

MAC addresses are used to identify devices on the same local network at the data-link layer. They are 48 bits long, typically shown as six hexadecimal octets, and are assigned by the hardware manufacturer and burned into the network interface (or assigned to a virtual interface by software, but they remain a hardware-like address). DHCP does not set or assign MAC addresses; it assigns IP configuration. A 64-bit address is not the standard Ethernet MAC length, though some other contexts use 64-bit identifiers. A statement calling it a purely virtual address used by software isn’t accurate, since the MAC is the hardware (or virtualized hardware) identifier for the interface. Therefore, the true description is a 48-bit hardware address assigned to a network interface.

Access more questions from this quiz

Continue to Network Essential Version C (LE) Practice Test for more practice questions and the full quiz experience.

Access More Questions