[Feb-2023 Newly Released] CWNA-108 Dumps for CWNA Certification Certified
Updated Verified CWNA-108 dumps Q&As - 100% Pass
NEW QUESTION 90
The requirement for a WLAN you are installing state that It must support unidirectional delays of less than 150 ms and the signal strength at all receivers can be no lower than -67 dBm.
What application is likely used that demands these requirements?
- A. RTLS
- B. FTP
- C. VoIP
- D. E-mail
Answer: A
NEW QUESTION 91
You are implementing a VHT-capable AP. Which one of the following channels is available in the
802.11-2016 standard, which was not available before the ratification of 802.11ac?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
NEW QUESTION 92
What primary metric of scanning can stations use to select the best AP for connectivity to the desired BSS?
- A. PING latency when testing against an Internet server.
- B. Signal strength of AP beacons received.
- C. Throughput speed in Mbps.
- D. FCS errors in frames transmitted to and from the AP.
Answer: B
NEW QUESTION 93
You are troubleshooting an issue reported by several wireless users. The problem is contained to one cell (several users connected to the same AP). You manage the WLAN and no other network devices. After analysis it appears to be a switch problem. What action should be taken?
- A. Create a plan of action and implement it
- B. Escalate the problem to the network administration team
- C. Escalate the problem to the wireless vendor support staff
- D. Document the results and close the case
Answer: B
NEW QUESTION 94
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. Laptop-based spectrum analyzers
- B. AP-based spectrum analysis
- C. Overlay WLAN monitoring solution
- D. Laptop-based protocol analyzers
Answer: C
NEW QUESTION 95
In addition to coverage analysis results, what should be included in a post-deployment site survey report to ensure WLAN users experience acceptable performance?
- A. WAN interface analysis results
- B. Capacity analysis results
- C. Application Layer protocol availability analysis results
- D. Layer 4 protocol availability analysis results
Answer: B
Explanation:
Explanation/Reference:
NEW QUESTION 96
What is always required to establish a high quality 2.4 GHz RF link at a distance of 3 miles (5 kilometers)?
- A. Grid antennas at each endpoint
- B. A minimum antenna gain of 11 dBi at both endpoints
- C. Minimum output power level of 2 watts
- D. A Fresnel Zone that is at least 60% clear of obstructions
Answer: D
NEW QUESTION 97
A non-802.11 device is suspected of causing interference on the WLAN. You are not certain of the location or type of device. What is the best solution for locating this non-802.11 device?
- A. Laptop-based spectrum analyzer with an omni-directional antenna
- B. Laptop-based spectrum analyzer with an omni-directional antenna
- C. Laptop-based spectrum analyzer with a directional antenna
- D. Access point spectrum analyzer
Answer: C
NEW QUESTION 98
What statement is true concerning the use of Orthogonal Frequency Division Multiplexing (OFDM) modulation method in IEEE 802.11 WLANs?
- A. OFDM implements BPSK modulation to allow for data rates up to 7 Gbps.
- B. OFDM was used by Frequency Hopping Spread Spectrum (FHSS) PHY devices.
- C. OFDM was first introduced in 802.11a and is used by the ERP, HT and VHT PHYs as well.
- D. OFDM modulation is used only in 5 GHz 802.11 transmissions.
Answer: C
Explanation:
https://en.wikipedia.org/wiki/IEEE_802.11
NEW QUESTION 99
A dual-band 802-1 lac AP must be powered by PoE. As a class 4 device, what power level should be received at the AP?
- A. 15.4 W
- B. 30 W
- C. 25. 5W
- D. 12.95 W
Answer: A
NEW QUESTION 100
What statement is true concerning the use of Orthogonal Frequency Division Multiplexing (OFDM) modulation method in IEEE 802.11 WLANs?
- A. OFDM implements BPSK modulation to allow for data rates up to 7 Gbps.
- B. OFDM was used by Frequency Hopping Spread Spectrum (FHSS) PHY devices.
- C. OFDM was first introduced in 802.11a and is used by the ERP, HT and VHT PHYs as well.
- D. OFDM modulation is used only in 5 GHz 802.11 transmissions.
Answer: C
Explanation:
Explanation
NEW QUESTION 101
The center frequency of channel 1 in the 2.4 GHz band is 2.412 GHz (2412 MHz).
What is the center frequency of channel 4?
- A. 2.427 GHz
- B. 2.417 GHz
- C. 2.422 GHz
- D. 2.413 GHz
Answer: A
NEW QUESTION 102
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 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
Answer: D
NEW QUESTION 103
When performing a validation survey for a Multiple Channel Architecture (MCA) system in a multi- tenant building with five floors, what aspect should you, as the surveyor, keep in mind?
- A. The RF interference caused by passing airplanes supporting on-board Wi-Fi should be a prime consideration
- B. The omni-directional antennas of the access points should be oriented parallel to the floor to maximize the coverage pattern across as many floors as possible
- C. The channel reuse pattern should be three dimensional with the RF cell extending coverage of each access point to other floors
- D. The Fresnel Zone is completely blocked between floors so each floor is considered a separate site survey
Answer: C
NEW QUESTION 104
What are two channel modes specified by the 802.11n (High Throughput) PHY? (Choose 2)
- A. 20/40 MHz
- B. 80 MHz
- C. 20 MHz
- D. 22 MHz
- E. 160 MHz
- F. 40/80 MHz
Answer: A,C
NEW QUESTION 105
In an infrastructure Basic Service Set (BSS), how does the passive scanning process occur?
- A. Client stations broadcast Probe Request frames on the single channel for which they are programmed. Nearby access points respond on that channel with Probe Response frames. Client stations record information found in the Probe Response frames for use in the association process.
- B. Access points broadcast Beacons on all channels of each radio within the regulatory domain.
Nearby client stations record information found in the Beacons for use in the association process. - C. Client stations broadcast Probe Request frames on all supported channels in the regulatory domain. Nearby access points respond with Probe Response frames. Client stations record information in the Probe Response frames for use in the association process.
- D. Access points broadcast Beacons on a single channel for which they are programmed. Nearby client stations listen for Beacon frames and record information found in the Beacons for use in the association process.
Answer: D
NEW QUESTION 106
You are troubleshooting a problem with interference from a non-802.11 device. Given that the device is not a WLAN device, you cannot use a protocol analyzer and have chosen to use a spectrum analyzer. You want to view the signal from the interfering device over time to see the activity that is generating.
What common spectrum analyzer view should you use for this analysis?
- A. APs
- B. Waterfall/Spectrogram
- C. Clients
- D. Real-time FFT
Answer: B
NEW QUESTION 107
In a long-distance RF link, what statement about Fade Margin is true?
- A. The Fade Margin of a long-distance radio link should be equivalent to the receiver's antenna gain.
- B. The Fade Margin is a measurement of signal loss through free space, and is a function of frequency and distance.
- C. Fade Margin is an additional pad of signal strength designed into theRF system to compensate for unpredictable signal fading.
- D. A Fade Margin is unnecessary on a long-distance RF link if more than 80% of the first Fresnelzone is clear of obstructions.
Answer: C
NEW QUESTION 108
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