N10-005 · Question #802
A technician is implementing a wireless network at a small business. The business already has a certificate authority and RADIUS server that they would like the technician to integrate with the…
The correct answer is D. 802.11g with WPA-Enterprise. The requirement to use a RADIUS server with a CA calls for WPA-Enterprise (802.1X authentication), and the legacy 802.11b TKIP printers require backward-compatible 802.11g. Only option D satisfies both constraints simultaneously.
Question
A technician is implementing a wireless network at a small business. The business already has a certificate authority and RADIUS server that they would like the technician to integrate with the wireless network. Additionally, the business would like to utilize their legacy 802.11b TKIP printers. Which of the following configurations should the technician use?
Options
- A802.11a with WPA2-Enterprise
- B802.11n with WPA-PSK
- C802.11n with WPA2-PSK
- D802.11g with WPA-Enterprise
How the community answered
(17 responses)- A6% (1)
- B18% (3)
- C6% (1)
- D71% (12)
Why each option
The requirement to use a RADIUS server with a CA calls for WPA-Enterprise (802.1X authentication), and the legacy 802.11b TKIP printers require backward-compatible 802.11g. Only option D satisfies both constraints simultaneously.
802.11a operates on the 5 GHz band and is not backward compatible with 802.11b devices, so the legacy TKIP printers would be unable to connect.
WPA-PSK uses a pre-shared key for authentication rather than a RADIUS server and certificate authority, failing to meet the enterprise authentication requirement.
WPA2-PSK also uses a pre-shared key instead of RADIUS/CA integration, and WPA2's mandatory CCMP/AES conflicts with legacy TKIP-only devices.
WPA-Enterprise uses 802.1X/EAP authentication, which integrates directly with a RADIUS server and certificate authority for per-user credential validation. 802.11g operates on the 2.4 GHz band and is backward compatible with 802.11b devices, allowing the legacy TKIP printers to associate with the same access point.
Concept tested: WPA-Enterprise with RADIUS and legacy 802.11b compatibility
Source: https://www.cisco.com/c/en/us/support/docs/wireless-mobility/wireless-lan-wlan/67134-wpa-auth.html
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