The omnidirectional antenna exhibits a degree of on the horizontal pattern.

• A.90
• B.180
• C.0
• D.360

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Capacity planning mainly estimates the number of APs needed to meet the traffic volume in terms of device performance, number of users, bandwidth requirements, and wireless environment.

• A.FALSE
• B.TRUE

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What are the QoS service models (Select 3 Answers).

• A.IntServ model
• B.DiffServ model
• C.FIFO model
• D.Best Effort model

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Which is the longest interval of 802.11 interframe?

• A.IFS
• B.DIFS
• C.PIFS
• D.SIFS

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According to the direction, WLAN antennas can be classified into () antennas and () antennas. (Multiple choice)

• A.Plate shape
• B.Omnidirectional
• C.Paraboloid
• D.Orientation

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