Which of the following is a WLAN security measure?

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Multiple Choice

Which of the following is a WLAN security measure?

The key idea here is identifying a direct access-control measure at the wireless access point. MAC filtering works by maintaining a list of approved device MAC addresses. When a device tries to connect, the AP checks its hardware address and only allows connection if the address is on the allowed list. This provides a basic barrier against unauthorized devices and is a straightforward way to tighten WLAN access on small networks. Keep in mind its limits: MAC addresses can be spoofed, and managing the list can become cumbersome in larger deployments. For stronger security, pair MAC filtering with robust encryption and authentication (like WPA2/WPA3). The other options touch security concepts but aren’t as direct a WLAN access-control measure: network authentication is broader and can refer to credential-based verification in various contexts; client isolation protects against lateral movement between clients but doesn’t by itself prevent unauthorized devices from joining; disabling SSID broadcast hides the network name but is ineffective against most attackers and is not a reliable security measure on its own.

The key idea here is identifying a direct access-control measure at the wireless access point. MAC filtering works by maintaining a list of approved device MAC addresses. When a device tries to connect, the AP checks its hardware address and only allows connection if the address is on the allowed list. This provides a basic barrier against unauthorized devices and is a straightforward way to tighten WLAN access on small networks.

Keep in mind its limits: MAC addresses can be spoofed, and managing the list can become cumbersome in larger deployments. For stronger security, pair MAC filtering with robust encryption and authentication (like WPA2/WPA3).

The other options touch security concepts but aren’t as direct a WLAN access-control measure: network authentication is broader and can refer to credential-based verification in various contexts; client isolation protects against lateral movement between clients but doesn’t by itself prevent unauthorized devices from joining; disabling SSID broadcast hides the network name but is ineffective against most attackers and is not a reliable security measure on its own.

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