GPEN · Question #256
Which of the following wireless security standards supported by Windows Vista provides the highest level of security?
The correct answer is A. WPA2. Among the wireless security standards available in Windows Vista, WPA2 provides the highest level of protection because it mandates AES-CCMP encryption, which is significantly stronger than the algorithms used by WPA or WEP.
Question
Which of the following wireless security standards supported by Windows Vista provides the highest level of security?
Options
- AWPA2
- BWPA-PSK
- CWEP
- DWPA-EAP
How the community answered
(52 responses)- A77% (40)
- B13% (7)
- C6% (3)
- D4% (2)
Why each option
Among the wireless security standards available in Windows Vista, WPA2 provides the highest level of protection because it mandates AES-CCMP encryption, which is significantly stronger than the algorithms used by WPA or WEP.
WPA2 (IEEE 802.11i) uses AES-CCMP (Advanced Encryption Standard in Counter Mode with CBC-MAC Protocol), which is a FIPS-approved cipher providing stronger confidentiality and integrity guarantees than the TKIP used by WPA or the RC4 cipher used by WEP.
WPA-PSK uses a pre-shared key with TKIP encryption, which is weaker than WPA2's mandatory AES-CCMP and is vulnerable to brute-force and dictionary attacks against the passphrase.
WEP (Wired Equivalent Privacy) uses RC4 with static keys and known cryptographic flaws that allow attackers to crack the key in minutes, making it the weakest option listed.
WPA-EAP improves authentication over WPA-PSK by using 802.1X/EAP, but it still relies on TKIP by default, making its encryption layer weaker than WPA2's AES-CCMP.
Concept tested: WPA2 AES encryption superiority over WPA and WEP
Source: https://learn.microsoft.com/en-us/windows/security/operating-system-security/network-security/wifi-security
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