CWSP Chapter One Questions and Answers
The IEEE 802.11 - 2007 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
E.
The 802.11-2007 standard defi nes what is known as a...
CWSP Chapter One Questions and
Answers
The IEEE 802.11 - 2007 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 E.
The 802.11-2007 standard defi nes what is known as a robust security network (RSN)
and robust security network associations (RSNAs). CCMP/AES encryption is the
mandated
encryption method, while TKIP/RC4 is an optional encryption method.
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 A, C.
The Wi-Fi Protected Access (WPA) certifi cation was a snapshot of the not-yet-released
802.11i amendment, supporting only the TKIP/RC4 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 specifi
cally
defi ned by WPA. Neither dynamic WEP nor CCMP/AES were defi ned for encryption.
CCMP/
AES dynamic encryption is mandatory under the WPA2 certifi cation.
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 B, D.
The 802.11-2007 standard defi nes CCMP/AES encryption as the default encryption
method, while TKIP/RC4 is the optional encryption method. This was originally defi ned
by
, the 802.11i amendment, which is now part of the 802.11-2007 standard. The Wi-Fi
Alliance
created the WPA2 security certifi cation, which mirrors the robust security defi ned by
the IEEE.
WPA2 supports both CCMP/AES and TKIP/RC4 dynamic encryption-key management.
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
F. 802.1X - answer D, F.
The required encryption method defined by an RSN wireless network is CounterMode
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 802.11-2007 standard
also requires the
use of an 802.1X/EAP authentication solution or the use of
preshared keys for robust security.
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 A, D.
802.11-2007 is the IEEE standard, and WEP (Wired Equivalent Privacy) is defi ned as
part of the IEEE 802.11-2007 standard. PSK is not a standard; it is an encoding
technique.
Wi-Fi Multimedia (WMM) is a Wi-Fi Alliance certifi cation program that enables Wi-Fi
networks to prioritize traffi c generated by different applications. WPA2 is a certifi cation
program that defi nes Wi-Fi security mechanisms.
Which sublayer of the OSI model ' s Data - Link layer is used for communication
between
802.11 radios?
A. LLC
B. WPA
C. MAC
D. FSK - answer C.
The IEEE 802.11-2007 standard defines communication mechanisms at only the
Physical layer and MAC sublayer of the Data-Link layer of the OSI model. The Logical
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