220-801 · Question #77
Which of the following wireless security standards uses AES, and is considered the MOST secure means of encryption?
The correct answer is A. Wireless Protected Access v2. WPA2 (Wi-Fi Protected Access 2) mandates the use of AES-based CCMP encryption and is the strongest wireless security standard listed.
Question
Options
- AWireless Protected Access v2
- BTemporal Key Integrity Protocol
- CWired Equivalent Privacy
- DWireless Protected Access
How the community answered
(46 responses)- A91% (42)
- B2% (1)
- C2% (1)
- D4% (2)
Why each option
WPA2 (Wi-Fi Protected Access 2) mandates the use of AES-based CCMP encryption and is the strongest wireless security standard listed.
WPA2 replaced WPA by requiring the use of AES with CCMP (Counter Mode with Cipher Block Chaining Message Authentication Code Protocol) rather than the weaker TKIP. This makes WPA2 the most secure standard among the options because AES is a NIST-approved block cipher resistant to known attacks.
TKIP (Temporal Key Integrity Protocol) is an encryption protocol used with WPA (not WPA2) as a stopgap improvement over WEP; it does not use AES as its primary cipher.
WEP (Wired Equivalent Privacy) uses the RC4 stream cipher with short, static keys and is considered cryptographically broken and insecure.
WPA (Wi-Fi Protected Access) uses TKIP by default, which is weaker than AES/CCMP; it does not mandate AES as WPA2 does.
Concept tested: WPA2 AES encryption as the most secure wireless standard
Source: https://learn.microsoft.com/en-us/windows/security/operating-system-security/network-security/wifi/wi-fi-security
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