What is the bit length and format of the ARP broadcast destination?

Study for the GCIA Fundamentals of Traffic Analysis Test. Prepare with flashcards and multiple-choice questions, each offering hints and in-depth explanations. Ace your exam with confidence!

Multiple Choice

What is the bit length and format of the ARP broadcast destination?

Explanation:
ARP broadcasts on Ethernet go to the MAC broadcast address, which is 6 bytes long (48 bits). The destination is FF:FF:FF:FF:FF:FF, targeting all devices on the local network segment. So the ARP broadcast destination is 48-bit / 6-byte. Note that the IP address ARP resolves is IPv4 (32 bits), but that IP length is separate from the link-layer destination; ARP operates at the link layer to map IPv4 addresses to MAC addresses.

ARP broadcasts on Ethernet go to the MAC broadcast address, which is 6 bytes long (48 bits). The destination is FF:FF:FF:FF:FF:FF, targeting all devices on the local network segment. So the ARP broadcast destination is 48-bit / 6-byte. Note that the IP address ARP resolves is IPv4 (32 bits), but that IP length is separate from the link-layer destination; ARP operates at the link layer to map IPv4 addresses to MAC addresses.

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