220-801 · Question #607
220-801 Question #607: Real Exam Question with Answer & Explanation
The correct answer is B: MAC filtering. MAC (Media Access Control) filtering restricts network access based on a device's MAC address - the unique hardware identifier burned into each NIC. The administrator creates a whitelist of allowed MAC addresses on the router/access point, blocking all others. Encryption (WPA/WPA
Question
Options
- AEncryption
- BMAC filtering
- CSSID broadcast
- DDHCP
Explanation
MAC (Media Access Control) filtering restricts network access based on a device's MAC address - the unique hardware identifier burned into each NIC. The administrator creates a whitelist of allowed MAC addresses on the router/access point, blocking all others. Encryption (WPA/WPA2) secures data in transit but does not restrict access by hardware ID. SSID broadcast controls network visibility, not access. DHCP assigns IP addresses dynamically and does not restrict by hardware ID. MAC filtering is the only option that directly uses the NIC's hardware identification.
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