CWNA-109無料問題集「CWNP Wireless Network Administrator (CWNA)」

質問 1

You are reporting on the RF environment in your facility. The manager asks you to describe the noise floor noted in 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 extra energy radiated by access points and client devices beyond that intended for the signal.

（D）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.

正解：D 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 2

Which IEEE 802.11 physical layer (PHY) specification includes support for and compatibility with both ERP and HR/DSSS?

（A）HT (802.11n)

（B）DSSS (802.11-Prime)

（C）OFDM (802.11a)

（D）VHT (802.11ac)

正解：A 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 3

What statement about the beamwidth of an RF antenna is true?

（A）The beamwidth patterns on an antenna polar chart indicate the point at which the RF signal stops propagating.

（B）Horizontal and vertical beamwidth are calculated at the points where the main lobe decreases power by
3 dB.

（C）When antenna gain is lower, the beamwidth is also lower in both the horizontal and vertical dimensions.

（D）Vertical beamwidth is displayed (in degrees) on the antenna's Azimuth chart.

正解：B 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 4

Your manager asked you to locate a solution that allows for centralized monitoring of WLAN performance over time. He wants a single pane of glass for administration and monitoring of the solution. What do you recommend?

（A）AP-based spectrum analysis

（B）Overlay WLAN monitoring solution

（C）Laptop-based spectrum analyzers

（D）Laptop-based protocol analyzers

正解：B 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 5

A natural disaster has occurred in a remote area that is approximately 57 miles from the response team headquarters. The response team must implement a local wireless network using 802.11 WLAN access points.
What is the best method, of those listed, for implementation of a network back-haul for communications across the Internet in this scenario?

（A）Temporary wired DSL

（B）Cellular/LTE/5G

（C）802.11 bridging to the response team headquarters

（D）Turn up the output power of the WLAN at the response team headquarters

正解：B 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 6

You are implementing a VHT-capable AP. Which one of the following channels is available in the
802.11-2016 standard that was not available before the ratification of 802.11 ac?

（A）161

（B）144

（C）153

（D）56

正解：B 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 7

When a STA has authenticated to an AP (AP-1), but still maintains a connection with another AP (AP-2), what is the state of the STA on AP-1?

（A）Authenticated and Associated

（B）Unauthenticated and Unassociated

（C）Transitional

（D）Authenticated and Unassociated

正解：D 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 8

What factors will have the most significant impact on the amount of wireless bandwidth available to each station within a BSS? (Choose 2)

（A）The layer 3 protocol used by each station to transmit data over the wireless link

（B）The power management settings in the access point's beacons

（C）The number of clientstations associated to the BSS

（D）The presence of co-located (10m away) access points on non-overlapping channels

正解：C 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 9

You are deploying a WLAN with the access points configured for 10 mW of output power on the 2.4 GHz radios and 20 mW of output power on the 5GHz radios. Some semi-directional antennas are also in use. What kind of deployment is described?

（A）SOHO

（B）High density

（C）Residential

（D）Standard office

正解：A 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 10

In which plane of the three networking planes is an access point configured by a WLAN controller?

（A）Security

（B）Control

（C）Data

（D）Management

正解：D 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

CWNA-109 無料問題集「CWNP Wireless Network Administrator (CWNA)」

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