312-49 · Question #50
312-49 Question #50: Real Exam Question with Answer & Explanation
The correct answer is D: 48-bit address. MAC (Media Access Control) filtering uses the 48-bit hardware address burned into each network interface card (NIC) to control network access. A MAC address is 48 bits long, typically represented as six pairs of hexadecimal digits (e.g., 00:1A:2B:3C:4D:5E). Network administrators
Question
MAC filtering is a security access control methodology, where a ___________ is assigned to each network card to determine access to the network
Options
- A16-bit address
- B24-bit address
- C32-bit address
- D48-bit address
Explanation
MAC (Media Access Control) filtering uses the 48-bit hardware address burned into each network interface card (NIC) to control network access. A MAC address is 48 bits long, typically represented as six pairs of hexadecimal digits (e.g., 00:1A:2B:3C:4D:5E). Network administrators configure an access control list of allowed MAC addresses on routers or access points; only devices whose MAC address matches the list are granted network access. The other options — 16-bit, 24-bit, and 32-bit — are incorrect address sizes for MAC addresses.
Topics
Community Discussion
No community discussion yet for this question.