최신 CWNA-107 무료덤프 - CWNP Certified Wireless Network Administrator

문제1

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. Inverse square law

B. Ohm's law

C. MU-MIMO

D. Fresnel zone thinning

정답: A

문제2

A WLAN transmitter that emits a 50 mW signal is connected to a cable with 3 dB loss.
If the cable is connected to an antenna with 9 dBi gain, what is the EIRP at the antenna element?

A. 23 dBm

B. 10 dBm

C. 13 dBm

D. 26 dBm

정답: A

문제3

You are onsite with a client to perform a post-deployment site survey. When verifying a multiple channel VoWiFi deployment using a VoWiFi handset, which aspect is most important?

A. Testing a constant conversation orhandset tone while roaming from area to area, or performing an active survey

B. Performing protocol analysis with a single wireless adapter that is scanning all channels in use

C. Configuring DSCP-to-802.11e QoS maps on the handset for each access category.

D. Verifying the VHT functionality to handle the call volume incurred by a single VoIP phone call.

정답: A

문제4

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

A. 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.

B. The noise caused elevators, microwave ovens, and video transmitters.

C. The extra energy radiated by access points and clint devices beyond that intended for the signal.

D. The energy radiated by flooring materials that causes interference in the 2.4 GHz and 5 GHz bands.

정답: A

문제5

What is a common feature of an 802.11 WLAN client utility? (Choose 2)

A. Link statistics display

B. AP Signal strength meter

C. VLAN configuration

D. Spectrum analyzer utility

E. Real-time retry monitor

정답: A,B

문제6

You are deploying a WLAN monitoring solution that utilizes distributed sensor devices. Where should sensors be deployed for best results? Choose the single best answer.

A. IN critical areas where WLAN performance must be high

B. Closer to the client devices

C. Closer to the APs

D. Every 20 feet and alongside each AP

정답: B

문제7

You are installing AP to be used by 23 laptops. All laptops will connect on the 5 GHz frequency band. A neighbor network uses channels 1 and 6. What channel should be used for this AP and why?

A. Channel 1, because it is best to use the channel with the lowest frequency

B. A 5 GHz channel, because channels 1 and 6 are 2.4 GHz channels they have no impact on the decision

C. Channel 6, because it is always best to use this channel

D. Channel 11, because channels 1 and 6 are in use nearby

정답: B

문제8

What is appended to the end of each 802.11 data frame after the payload?

A. FCS

B. Preamble

C. MAC header

D. PHY header

정답: A

문제9

A company has hired you to perform a pre-deployment site survey of their facility. During an interview, the network manager informs you that the new wireless network must use 5 GHz bands and OFDM, and VoWiFi handsets will be used extensively over the wireless network.
What items do you need to include in the RF site survey report? (Choose 2)

A. A heat map demonstrating signal quality in areas where VoWiFi is supported.

B. Codec types and sampling rates for each VoWiFi phone

C. Security parameters and configuration steps for VoWiFi handsets.

D. Test results from an active survey with a VoWiFi handset

E. Results of OFDM versus ERP performance in each BSA

정답: A,D

문제10

Return Loss is the decrease of forward energy in a system when some of the power is being reflected back toward the transmitter.
What will cause high return loss in an RF transmission system, including the radio, cables, connectors and antenna?

A. A Voltage Standing Wave Ratio (VSWR) of 1:1

B. An impedance mismatch between components in the RF system

C. High output power at the transmitter and use of a low-gain antenna

D. The use of cables longer than one meter in the RF system

정답: B

최신 CWNA-107 무료덤프 - CWNP Certified Wireless Network Administrator

우리와 연락하기

유용한 링크

최신 업데이트