GSLC · Question #489
Which of the following wireless security standards supported by Windows Vista provides the highest level of security?
The correct answer is C. WPA2. WPA2 provides the highest wireless security by implementing the full IEEE 802.11i standard with AES-CCMP encryption, surpassing all other listed options.
Question
Which of the following wireless security standards supported by Windows Vista provides the highest level of security?
Options
- AWPA-PSK
- BWPA-EAP
- CWPA2
- DWEP
How the community answered
(40 responses)- A3% (1)
- B5% (2)
- C90% (36)
- D3% (1)
Why each option
WPA2 provides the highest wireless security by implementing the full IEEE 802.11i standard with AES-CCMP encryption, surpassing all other listed options.
WPA-PSK uses TKIP which, while an improvement over WEP, relies on RC4 with known exploitable weaknesses such as the TKIP MIC attack, making it less secure than WPA2's AES-CCMP.
WPA-EAP improves authentication with EAP-based identity verification but still uses TKIP rather than the AES-CCMP encryption mandated by WPA2, placing it below WPA2 in overall security.
WPA2 implements the complete IEEE 802.11i standard and mandates AES-CCMP encryption, which is significantly stronger than the RC4 stream cipher used in WEP or the TKIP interim protocol used in WPA. It supports both personal (PSK) and enterprise (EAP) authentication modes, and its AES-based encryption has no known practical protocol-level vulnerabilities, making it the strongest option listed.
WEP uses a static RC4 key with a weak 24-bit initialization vector that can be cracked in minutes using tools like Aircrack-ng, making it the least secure option listed.
Concept tested: Comparing wireless security protocol encryption strength
Source: https://learn.microsoft.com/en-us/windows/security/operating-system-security/network-security/wifi-security
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