GSEC · Question #178
Which of the following authentication methods are used by Wired Equivalent Privacy (WEP)? Each correct answer represents a complete solution. Choose two.
The correct answer is C. Open system authentication D. Shared key authentication. WEP supports two authentication methods - open system and shared key - neither of which provides strong security by modern standards.
Question
Which of the following authentication methods are used by Wired Equivalent Privacy (WEP)? Each correct answer represents a complete solution. Choose two.
Options
- AAnonymous authentication
- BMutual authentication
- COpen system authentication
- DShared key authentication
How the community answered
(40 responses)- A15% (6)
- B8% (3)
- C78% (31)
Why each option
WEP supports two authentication methods - open system and shared key - neither of which provides strong security by modern standards.
Anonymous authentication is not a defined WEP authentication mode in the IEEE 802.11 standard.
Mutual authentication, where both client and server verify each other, is not supported by WEP and is a feature of stronger protocols like WPA2-Enterprise using EAP.
Open system authentication in WEP requires no credentials; any client can associate with the access point, making it the least secure option but a valid WEP mode.
Shared key authentication requires the client to prove knowledge of the WEP key via a challenge-response exchange, though this method is actually weaker than open system because it exposes the keystream to attackers.
Concept tested: WEP authentication modes in 802.11
Source: https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-xp/bb878021(v=technet.10)
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