A natural disaster has occurred in a remote area that is approximately 40 miles from the response team
headquarters. The response team must setup a local wireless network using 802.11 WLAN access points.
What is the best method, of those listed, for implementation of a network backhaul for communications
across the Internet in this scenario?

• A.Temporary wired cable
• B.802.11 bridging
• C.Temporary wired DSL
• D.Cellular/LTE

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In an 802.11n 2.4 GHz BSS, what prevents each station from using the full network data rate (e.g. 216.7 Mbps) for user data when multiple clients are actively exchanging data with the AP?

• A.Radio receiver hardware cannot process data is quickly as it can be transmitted
• B.All data frames must be acknowledged and the medium is shared
• C.APs do not have sufficient wired connection speeds to the LAN, even at 1 Gbps connections, with
  802.11n and earlier APs
• D.Half of the bandwidth is allocated to uplink traffic and half to downlink traffic

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You are reporting on the RF environment in your facility. The manager asks you do describe the noise
floor noted on the report. Which of the following is the best explanation?

• A.The energy radiated by flooring materials that causes interference in the 2.4 GHz and 5 GHz bands.
• B.The noise caused by elevators, microwave ovens, and video transmitters.
• C.The RF energy that exists in the environment from intentional and unintentional RF radiators that forms
  the baseline above which the Intentional signal of your WLAN must exist.
• D.The extra energy radiated by access points and client devices beyond that intended for the signal.

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As an RF wave propagates through space, the wave front experiences natural expansion that reduces its signal strength in an area. What term describes the rate at which this expansion happens?

• A.MU-MIMO
• B.Inverse square law
• C.Ohm's law
• D.Fresnel zone thinning

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What factors does not influence the distance at which an RF signal can be effectively received?

• A.Receiving station's output power
• B.Free Space Path Loss
• C.Receiving station's radio sensitivity
• D.Transmitting station's output power

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