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- CWSP-205
1.
The IEEE 802.11 - 2012 standard mandates encryption for robust security
network associations and the optional use of encryption.
- A.WEP, AES
- B.IPsec, AES
- C.MPPE, TKIP
- D.TKIP, WEP
- E.CCMP, TKIP
- Answer & Explanation
- Report
Answer : [E]
Explanation :
Explanation :
| The 802.11-2012 standard defines what is known as a robust security network (RSN) and robust security network associations (RSNAs). CCMP/AES encryption is the mandated encryption method, whereas TKIP/ARC4 is an optional encryption method. |
2.
What wireless security solutions are defined by Wi - Fi Protected Access? (Choose all
that apply.)
- A.Passphrase authentication
- B.LEAP
- C.TKIP/RC4
- D.Dynamic WEP
- E.CCMP/AES
- Answer & Explanation
- Report
Answer : [A, C]
Explanation :
Explanation :
| The Wi-Fi Protected Access (WPA) certification was a snapshot of the not-yet-released 802.11i amendment, supporting only the TKIP/ARC4 dynamic encryption-key generation. 802.1X/EAP authentication was required in the enterprise, and passphrase authentication was required in a SOHO or home environment. LEAP is Cisco-proprietary and is not specifically defined by WPA. Neither dynamic WEP nor CCMP/AES were defined for encryption. CCMP/AES dynamic encryption is mandatory under the WPA2 certification. |
3.
Which wireless security standards and certifications call for the use of CCMP/AES encryption?
(Choose all that apply.)
- A.WPA
- B.802.11 - 2007
- C.802.1X
- D.WPA2
- E.802.11 legacy
- Answer & Explanation
- Report
Answer : [B, D]
Explanation :
Explanation :
| The 802.11-2012 standard defines CCMP/AES encryption as the default encryption method, whereas TKIP/ARC4 is the optional encryption method. This was originally defined by the 802.11i amendment, which is now part of the 802.11-2012 standard. The Wi-Fi Alliance created the WPA2 security certification, which mirrors the robust security defined by the IEEE. WPA2 supports both CCMP/AES and TKIP/ARC4 dynamic encryption key management. |
4.
A robust security network (RSN) requires the use of which security mechanisms? (Choose
all that apply.)
- A.802.11x
- B.WEP
- C.IPSec
- D.CCMP/AES
- E.CKIP
- D.802.1X
- Answer & Explanation
- Report
Answer : [D, F]
Explanation :
Explanation :
| The required encryption method defined by an RSN wireless network is Counter Mode with Cipher Block Chaining Message Authentication Code Protocol (CCMP), which uses the Advanced Encryption Standard (AES) algorithm. An optional choice of encryption is the Temporal Key Integrity Protocol (TKIP). The 802.11-2012 standard also requires the use of an 802.1X/EAP authentication solution or the use of preshared keys for robust security. It should be noted that TKIP encryption cannot be used for 802.11n and 802.11ac data rates. |
5.
The Wi - Fi Alliance is responsible for which of the following certification programs?
(Choose all that apply.)
- A.WPA2
- B.WEP
- C.802.11 - 2007
- D.WMM
- E.PSK
- Answer & Explanation
- Report
Answer : [A, D]
Explanation :
Explanation :
| 802.11-2012 is the IEEE standard, and WEP (Wired Equivalent Privacy) is defined as part of the IEEE 802.11-2012 standard. PSK is not a standard; it is an authentication technique. Wi-Fi Multimedia (WMM) is a Wi-Fi Alliance certification program that enables Wi-Fi networks to prioritize traffic generated by different applications. WPA2 is a certification program that defines Wi-Fi security mechanisms. |
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