Exam A QUESTION 1
The IEEE 802.11n standard provides 40-MHz channels, improved MAC efficiency, and MIMO. Which three elements define the 802.11n implementation of MIMO? (Choose three.)
A. channel bonding
B. dynamic frequency selection
C. maximal ratio combining
D. packet aggregation
E. spatial multiplexing
F. transmit beam forming
Correct Answer: CEF QUESTION 2
Which two statements about WiMAX technology are true? (Choose two.)
A. WiMAX is defined by 802.11i.
B. Typically, fixed WiMAX networks have a higher-gain directional antenna installed near the client.
C. WiMAX is capable of working as a long-range system over several miles.
D. WiMAX works only for licensed frequencies.
Correct Answer: BC QUESTION 3
Which governing body analyzes the applications and environments in which wireless networks are used? EIRP
A. ETSI
B. FCC
C. IEEECisco 640-722 ExamCisco 640-722 Exam
D. WiFi Alliance
Correct Answer: D QUESTION 4
Which description best describesupfade in a multipath environment?
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