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NEW QUESTION NO: 10
A. MSK
B. WEP key
C. Passphrase
D. PSK
Answer: C
Explanation/Reference:
Reference http://www.arubanetworks.com/techdocs/ArubaOS_64x_WebHelp/Content/ArubaFrameStyles/ VirtualAPs/SSID_Profiles.htm
NEW QUESTION NO: 11
What Linux shell command can be used to view the hardware and PHY capabilities of a wireless adapter in detail including channel widths, output power settings, channels supported, and more?
A. iwconfig
B. iw phy
C. netsh wlan show device
D. ifconfig
Answer: A
NEW QUESTION NO: 12
You manage a WLAN with 100 802.11ac access points. All access points are configured to use 80 MHz channels. In a particular BSS, only 40 MHz communications are seen. What is the likely cause of this behavior?
A. The short guard interval is also enabled.
B. All clients implement single spatial stream radios
C. The AP is improperly configured to use only 40 MHz of the 80 MHz allocated bandwidth
D. The clients are all 802.11n STAs or lower
Answer: C
NEW QUESTION NO: 13
What best describes WPA2 in relation to 802.11 wireless networks?
A. WPA2 is the standard that defines security for WLANs.
B. WPA2 is the second version of WPA and it enhances security through the use of TKIP instead of WEP.
C. WPA2 is a certification created by the Wi-Fi Alliance that validates devices correctly implement CCMP/ AES.
D. WPA2 is specified in the 802.11 standard as implementing CCMP/AES.
Answer: A
NEW QUESTION NO: 14
In a mesh BSS (MBSS), according to the 802.11-2016 standard, what device connects the mesh to an Ethernet network?
A. Mesh Gate
B. Mesh Switch
C. Mesh Router
D. Mesh Portal
Answer: A
Explanation/Reference:
Reference https://www.cwnp.com/uploads/802-11s_mesh_networking_v1-0.pdf
NEW QUESTION NO: 15
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 a network backhaul for communications across the Internet in this scenario?
A. Temporary wired DSL
B. Cellular/LTE
C. Temporary wired cable
D. 802.11 bridging
Answer: B
NEW QUESTION NO: 16
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. Overlay WLAN monitoring solution
C. AP-based spectrum analysis
D. Laptop-based protocol analyzers
Answer: C
NEW QUESTION NO: 17
Three access points are used within a facility. One access point is on channel 11 and the other two are on channel 1. The two access points using channel 1 are on either side of the access point using channel 11 and sufficiently apart so that they do not interfere with each other when they transmit frames. Assuming no other APs are in the vicinity, is CCI still a possibility in this network and why?
A. Yes, because the client devices connected to one of the channel 1 APs will transmit frames that reach the other channel 1 AP as well as clients connected to the other channel 1 AP.
B. Yes, because channel 11 loops around and causes CCI with channel 1.
C. No, because the APs are far enough apart that no CCI will occur.
D. No, because CCI only occurs in the 5 GHz frequency band.
Answer: A
NEW QUESTION NO: 18
You are troubleshooting a client problem with a 2.4 GHz WLAN connection. The client is experiencing surprisingly low data rates during the work day. You analyze the workspace outside of business hours and detect a strong signal with a typical noise floor at the client location. During working hours, the user works with a laptop in the area and uses an external USB hard drive for continuous data access. The user also states that the laptop works as expected on her home network. The user working approximately 8 feet away from this client experiences no problems.
Based on this information, what is the likely cause of the problem?
A. The drives in the laptop are corrupt
B. The AP is overloaded during the work day
C. The laptop has a failing wireless adapter
D. The external hard drive is USB 3.0 and is causing a significant increase in the noise floor when in use
Answer: B
NEW QUESTION NO: 19
You are reporting on the RF environment in your facility. The manager asks you do describe the noise floor noted on 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 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.
D. The extra energy radiated by access points and client devices beyond that intended for the signal.
Answer: B
Explanation/Reference:
Reference http://blog.prosig.com/2008/04/14/what-is-db-noise-floor-dynamic-range/
NEW QUESTION NO: 20
You were previously onsite at XYZ's facility to conduct a pre-deployment RF site survey. The WLAN has been deployed according to your recommendations and you are onsite again to perform, a post- deployment validation survey.
When performing this type of post-deployment RF site survey voice over Wi-Fi, what is an action that must be performed?
A. Application analysis with an active phone call on an VoWiFi handset.
B. Frequency-band hopping analysis to detect improper RF channel implementations.
C. Protocol analysis to discover channel use on neighboring APs.
D. Spectrum analysis to locate and identify RF interference sources.
Answer: D