N10-005 Question #347: Real Exam Question with Answer & Explanation

The correct answer is B: MAC filtering. A MAC (Media Access Control) address is a hardware-level identifier burned into a network interface card-it is the device's physical address. MAC filtering on a wireless router allows administrators to create a whitelist of approved MAC addresses; only devices whose MAC address a

Question

Which of the following wireless router security measures provides access to a network by allowing only devices on an approved physical address list?

Options

APort filtering
BMAC filtering
CSSID masking
DPort forwarding

Explanation

A MAC (Media Access Control) address is a hardware-level identifier burned into a network interface card-it is the device's physical address. MAC filtering on a wireless router allows administrators to create a whitelist of approved MAC addresses; only devices whose MAC address appears on that list are permitted to associate with the network. Port filtering restricts traffic by port number, not device identity. SSID masking hides the network name but does not control who can connect. Port forwarding redirects inbound traffic to internal hosts and has nothing to do with device authentication.

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