Online Access Free CWNA-106 Practice Test

How is throughput capacity scaled in a single channel architecture (SCA) WLAN system?

• A.By using downlink data compression and uplink flow control at the AP.
• B.By adding non-overlapping channel layers through the addition of more APs.
• C.By increasing transmit power and placing APs that are on a single channel farther from one another.
• D.By adding more SSIDs to existing APs to spread users across different contention domains.

The OSI model is a 7-layer model forunderstanding the functions of a communication system. What OSI sublayers are specifically addressed by the IEEE 802.11-2012 standard? (Choose 2)

• A.PPDU
• B.PLCP
• C.IP
• D.Network
• E.MAC
• F.Transport

In a single channel architecture (SCA) WLAN system, 802.11n (HT) APs should not share an SSID with 802.11g (ERP) APs.
What is the reason for this recommendation?

• A.The additional beacon material in 802.11n beacons wouldconfuse 802.11b/g client stations.
• B.Beacons from 802.11n APs use 40 MHz channels, while beacons from 802.11g APs use
  20 MHz channels.
• C.Client stations would see two different sets of AP capabilities as they roam between APs with the same BSSID.
• D.The added range of 802.11n APs would cause additional co-channel interference.

In a long-distance RF link, whatstatement about Fade Margin is true?

• A.Fade Margin is an additional pad of signal strength designed into theRF system to compensate for unpredictable signal fading.
• B.The Fade Margin is a measurement of signal loss through free space, and is a function of frequency and distance.
• C.The Fade Margin of a long-distance radio link should be equivalent to the receiver's antenna gain.
• D.A Fade Margin is unnecessary on a long-distance RF link if more than 80% of the first
  Fresnelzone is clear of obstructions.

An 802.11 WLAN transmitter thatemits a 50 mW signal is connected to a cable with 3 dB of loss. The cable is connected to an antenna with 16 dBi of gain.
What is the EIRP power output?

• A.250 mW
• B.1000 mW
• C.500 mW
• D.2 mW