CWNA-109 시험 - CWNP실제시험문제와 답 - 770문항

Question No : 1

Jane Barrett is installing a controller-based wireless network that uses both software and hardware to monitor and dynamically change the power and channel settings of the APs.
This technology is known as what? (Choose all that apply.)

A.Dynamic rate selection (DRS)
B.Radio resource management (RRM)
C.Adaptive radio configuration (ARC)
D.Self-organizing wireless LAN

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Question No : 2

Layer 2 retransmissions occur when frames become corrupted.
What are some of the causes of layer 2 retries? (Choose all that apply.)

A.High SNR
B.Low SNR
C.Co-channel interference
D.RF interference
E.Adjacent channel interference

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Question No : 3

Prior to association, what parameter can 802.11 client devices measure and use to select the optimal access point for association?

A.Signal strength of access point beacons received
B.Proximity to potential access points
C.Retry rate of probe request and response frames
D.Average round trip time to reach the Internet DNS server
E.Average round trip time to reach the IP router

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Question No : 4

If an 802.11 RF transmission reaches a receiving antenna simultaneously by direct and reflected paths, what effect will the reflected signal have on the signal that took the direct line-of-sight path?

A.The direct signal will only be received if the reflected signal is more than 180 degrees out of phase.
B.The direct signal cannot be received if the indirect signal is less than 90 degrees out-of-phase.
C.The signals will be distorted if the indirect signal arrives simultaneously at the receiver, but 90 degrees out-of-phase.
D.If the signals are in-phase, they will combine together, cancel one another out, and create a null.

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Question No : 5

In the 1970’s _______ had a wireless communication model for transmitting between islands.

A.China
B.Hawaii
C.Alaska
D.Russia

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Question No : 6

What documents might be needed prior to performing an indoor site survey for a new wireless LAN? (Choose all that apply.)

A.Blueprints
B.Network topography map
C.Network topology map
D.Coverage map
E.Frequency map

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Question No : 7

What are some popular 802.11 applications used in the healthcare industry? (Choose all that apply.)

A.VoWiFi
B.Bridging
C.RTLS
D.Patient monitoring

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Question No : 8

What phrase defines Equivalent Isotropically Radiated Power (EIRP)?

A.The power output from the radio into the RF cable
B.The power output from the radio after cable losses
C.The highest RF signal strength that is transmitted from a given antenna
D.Reflected power due to an impedance mismatch in the signal path
E.Power supplied from the transmission line to the antenna input

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Question No : 9

In WLAN security, which authentication methods always create Layer 2 dynamic encryption keys? (Choose 2)

A.HTTPS Captive Portal
B.WEP
C.WPA2-PSK
D.EAP-TLS
E.Shared Key
F.TKIP

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Question No : 10

Which two 802.11 topologies require the use of an AP?

A.IBSS
B.BSS
C.PBSS
D.ESS

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Question No : 11

What type of interference is caused by overlapping coverage cells with overlapping frequencies?

A.Intersymbol interference
B.Adjacent channel interference
C.All-band interference
D.Narrowband interference
E.Co-channel interference

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Question No : 12

When is an 802.11ac AP transmitting on 5 GHz required by the IEEE 802.11-2020 standard to respond to probe request frames from nearby client stations? (Choose all that apply.)

A.When the probe request frames contain a null SSID value
B.When the probe request client is also an 802.11ac radio
C.When the probe request is encrypted
D.When the probe request has the Power Management bit set to 1
E.When the probe request frames contain the correct SSID value

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Question No : 13

CSMA/CA and DCF define which mechanisms that attempt to ensure that only one 802.11 radio can transmit on the half-duplex RF medium? (Choose all that apply.)

A.Random backoff timer
B.NAV
C.CCMP
D.CCA
E.Interframe spacing

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Question No : 14

Which of the following 802.11 frames carry an MSDU payload that may eventually be transferred by the integration service into an 802.3 Ethernet frame?

A.802.11 management frames
B.802.11 control frames
C.802.11 data frames
D.802.11 action frames
E.802.11 association frames

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Question No : 15

dBi is a measure of what?

A.The output of the transmitter
B.The signal increase caused by the antenna
C.The signal increase of the intentional transmitter
D.The comparison between an isotropic radiator and the transceiver
E.The strength of the intentional radiator

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CWNP CWNA-109 시험