MAC filtering uses a network card's address of which bit length?

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Prepare for the Computer Hacking Forensic Investigator v11 exam. Study with flashcards and multiple choice questions. Each question includes hints and explanations. Get exam-ready efficiently!

Multiple Choice

MAC filtering uses a network card's address of which bit length?

Explanation:
MAC filtering relies on the hardware address of a network interface, which on Ethernet and Wi‑Fi is a 48‑bit MAC address (six octets, typically shown as six hex pairs like 00:11:22:33:44:55). That 48‑bit length is what the filter uses to compare devices against an allowed list. While some contexts reference 64‑bit identifiers (EUI‑64) for other purposes, the standard MAC address used for filtering is 48 bits. 16, 24, or 32 bits don’t correspond to the typical hardware address length and wouldn’t uniquely identify devices on modern networks.

MAC filtering relies on the hardware address of a network interface, which on Ethernet and Wi‑Fi is a 48‑bit MAC address (six octets, typically shown as six hex pairs like 00:11:22:33:44:55). That 48‑bit length is what the filter uses to compare devices against an allowed list. While some contexts reference 64‑bit identifiers (EUI‑64) for other purposes, the standard MAC address used for filtering is 48 bits. 16, 24, or 32 bits don’t correspond to the typical hardware address length and wouldn’t uniquely identify devices on modern networks.

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