GSLC Question #41: Real Exam Question with Answer & Explanation

The correct answer is A. WPA with 802.1X authentication. WPA with 802.1X provides the strongest wireless security by requiring per-user authentication through an external RADIUS server, eliminating shared-key weaknesses.

Question

Which of the following wireless security features provides the best wireless security mechanism?

Options

AWPA with 802.1X authentication
BWPA with Pre Shared Key
CWEP
DWPA

Explanation

WPA with 802.1X provides the strongest wireless security by requiring per-user authentication through an external RADIUS server, eliminating shared-key weaknesses.

Common mistakes.

B. WPA-PSK relies on a single pre-shared key known by all users, making the entire network vulnerable if that key is compromised or brute-forced.
C. WEP uses the RC4 cipher with a flawed short static IV implementation that allows an attacker to recover the key in minutes using passive traffic capture.
D. WPA alone without 802.1X defaults to PSK mode in practice, which lacks per-user authentication and dynamic key derivation provided by the enterprise 802.1X model.

Concept tested. WPA Enterprise 802.1X wireless authentication strength

Reference. https://learn.microsoft.com/en-us/windows-server/networking/technologies/nps/nps-802-1x-design-guide

Community Discussion

No community discussion yet for this question.

Full GSLC Practice