N10-005 Question #673: Real Exam Question with Answer & Explanation

The correct answer is C: MAC address filtering. MAC address filtering allows the access point to maintain a whitelist of permitted device hardware (MAC) addresses, blocking any device not on the list. It requires no configuration changes on the client devices themselves - the restriction is entirely configured on the AP side.

Question

A technician needs to restrict access to a SOHO wireless network to specific devices. Which of the following would MOST likely be used with minimal client configuration?

Options

APort filtering
BWEP
CMAC address filtering
DPoE

Explanation

MAC address filtering allows the access point to maintain a whitelist of permitted device hardware (MAC) addresses, blocking any device not on the list. It requires no configuration changes on the client devices themselves - the restriction is entirely configured on the AP side. Port filtering (A) controls access based on TCP/UDP port numbers and doesn't identify specific devices. WEP (B) is an encryption protocol that requires each client to be configured with the WEP key, adding client-side configuration. PoE (D) is Power over Ethernet, a method of delivering electrical power through network cables - it has nothing to do with access restriction.

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