单项选择题

Which device is used in wireless networks to send transmissions to a target area?（）

A. Optical fiber
B. Access point
C. Omni-directional antenna
D. Directional antenna

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单项选择题
If A customers needed to load-balance across multiple data center. which Cisco productwould the customer consider?（）

A. ACE Global Site Selector
B. Site Balancer
C. ISR Wide Area Acceleration Server
D. Nexus Site Balancer
E. ASR Virtual Balanced Network
单项选择题
Is an open standard promotes interoperability among the wireless client adapters and dial-inservers from different vendors.（）

A. WEP
B. HTTP
C. SSID
D. EAP
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