220-1002 · Question #42
220-1002 Question #42: Real Exam Question with Answer & Explanation
The correct answer is B: MAC filtering. MAC filtering (B) lets the technician whitelist only employee device MAC addresses on the access point, blocking all unregistered devices like customer phones or laptops. Reducing signal strength (E) physically limits the WiFi range so it no longer reaches customer-facing areas (
Question
Options
- ADefault SSID
- BMAC filtering
- CNAT
- DQoS
- ESignal strength
- FEncryption
Explanation
MAC filtering (B) lets the technician whitelist only employee device MAC addresses on the access point, blocking all unregistered devices like customer phones or laptops. Reducing signal strength (E) physically limits the WiFi range so it no longer reaches customer-facing areas (e.g., storefront or waiting room) while still covering employee work areas. Changing the default SSID (A) only renames the network and does not restrict access. NAT (C) handles private-to-public IP address translation and has no bearing on which devices can associate. QoS (D) prioritizes traffic types but does not block connections. Adding encryption (F) would require a shared password, which customers could easily obtain, and it would also change the network from open to secured-affecting all users, not just customers.
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