What is always required to establish a high quality 2.4 GHz RF link at a distance of 3 miles (5 kilometers)?

• A.A Fresnel Zone that is at least 60% clear of obstructions
• B.Accurate Earth Bulge calculations
• C.Minimum output power level of 2 W
• D.Grid antennas at each endpoint
• E.A minimum antenna gain of 11 dBi at both endpoints

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Three access points are used within a facility. One access point is on channel 11 and the other two are on
channel 1. The two access points using channel 1 are on either side of the access point using channel 11
and sufficiently apart so that they do not interfere with each other when they transmit frames. Assuming no
other APs are in the vicinity, is CCI still a possibility in this network and why?

• A.Yes, because channel 11 loops around and causes CCI with channel 1.
• B.No, because CCI only occurs in the 5 GHz frequency band.
• C.Yes, because the client devices connected to one of the channel 1 APs will transmit frames that reach
  the other channel 1 AP as well as clients connected to the other channel 1 AP.
• D.No, because the APs are far enough apart that no CCI will occur.

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What security solution is deprecated in the 802.11 standard and should never be used in any modern
WLAN deployment?

• A.AES
• B.Open System Authentication
• C.Shared Key Authentication
• D.CCMP

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Which one of the following 802.11 PHYs is more likely to be used in an industrial deployment but not likely to be used in standard office deployments?

• A.SIG
• B.VHT
• C.HT
• D.OFDM

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In addition to coverage analysis result, what should be included in a post-deployment site survey report to ensure WLAN users experience acceptable performance?

• A.Application Layer protocol availability analysis results
• B.Layer 4 protocol availability analysis results
• C.Capacity analysis results
• D.WAN interface analysis results

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