The Wi-Fi Alliance defined two certification programs, called WPA and WPA2, which are based on the IEEE 802.11i standard.
Which three statements are true about these certifications? (Choose three.)
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A. B. C. D. E.BCD.
The correct answers are B, D, and E.
A. WPA is based on the ratified IEEE 802.11i standard. - This statement is false. Although WPA is based on the IEEE 802.11i standard, it is not the ratified version. WPA was created as an interim security solution before the ratification of 802.11i.
B. WPA2 is based on the ratified IEEE 802.11i standard. - This statement is true. WPA2 is based on the ratified IEEE 802.11i standard and provides stronger security than its predecessor WPA.
C. WPA enhanced WEP with the introduction of TKIP. - This statement is true. WPA enhanced the security of WEP by introducing TKIP (Temporal Key Integrity Protocol), which provides per-packet key mixing, a message integrity check, and a re-keying mechanism.
D. WPA2 requires the support of AES-CCMP. - This statement is true. WPA2 requires the support of AES-CCMP (Advanced Encryption Standard-Counter Mode with Cipher Block Chaining Message Authentication Code Protocol), which is a more secure encryption protocol than TKIP.
E. WPA2 supports only 802.1x/EAP authentication. - This statement is false. Although WPA2 supports 802.1x/EAP authentication, it also supports pre-shared key (PSK) authentication, which is a simpler method of authentication that uses a shared secret key.
In summary, WPA and WPA2 are security certifications created by the Wi-Fi Alliance based on the IEEE 802.11i standard. WPA enhanced the security of WEP with the introduction of TKIP, while WPA2 requires the support of AES-CCMP for stronger encryption. Both WPA and WPA2 support 802.1x/EAP authentication, but WPA2 also supports PSK authentication.