Given A project parameter defines a requirement or constraint (or a project that can be defined before any file imports or design actions. What is an example of a project parameter commonly available in WLAN design software?
When designing a static channel plan for an office using voice devices near an airport, which range of channels should be avoided to ensure
optimal performance when implemented?
What advantage provided by 802.11n and 802.11ac is not usable in 1X1:1 low-end client devices?
NicoCo is building a new facility and would like to install a WLAN for primary connectivity of all clients. The requirements are dual-spectrum 802.11n supporting voice and location tracking.
What type of pre-deployment survey should be performed?
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An MSA commonly addresses at least which two legal categories?
Why should band steering algorithms allow stations to connect to the 2.4 GHz band after some number of ignored Probe Requests?
An amplifier has a 1 dB compression point of 32 dBm and a gain of 20 dB. Which is the highest average input power shown here that would be safe to operate a 24 Mbps 802.11g signal so that spectral regrowth is not a problem?
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Using a SCA means that all APs will be using the same channel in a given layer. How is the AP with which the client associates determined?
While performing a validation site survey, you realize that overlapping channels are being used on the 2.4 GHz bad due to the automatic channel assignment algorithm of the WLAN infrastructure.
What should you do to prevent this?
You are working on a VoWLAN design with your customer's wired networking team. How many distinct priority levels do you expect for the voice
applications?
After successfully deploying and validating a WLAN intra structure, who should be trained for a better understanding and management of the solution? (Choose the single best answer)
Given: In a site survey deliverable report, you are expected to explain the spectrum measurements taken at the customers site. What portion of a
spectrum analyzer view can be used to determine if a given channel is too active for use as the active channel for a new AP?
After importing a floor plan to a predictive design tool, what should be done prior to adding APs, antennas and attenuators (e.g., walls)?
Which operational plane would be responsible for performing automated RF management?
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As a device starts to shift to lower PHY rates, what factors usually influence a device decision to shift to lower PHY rates?(Choose all that apply.)
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What is the DSCP Per Hop Behavior equivalent classification of the 802.11 AC_VO priority level?
Given: As the wireless network administrator for XYZ Company, you are planning to upgrade your aging wireless network infrastructure, as well as some clients, to support 802.11ac.
In your research, you have discovered that your new wireless client devices and infrastructure are 802.11ac, WMM, and WMM-PS certified by the Wi-Fi Alliance. Some of your existing client devices are 802.11a/b/g devices that do not support WMM.
Given this information, what scenario is possible when your company's employees begin using both types of client devices on the new WLAN?
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What are the best practices for belter location accuracy when deploying Wi-Fi RTLS?
Your customer's 802.11n laptops are not able to see the SSID in the 5 GHz band in the conference room. When doing a walkthrough using one of
these laptops, you confirm that it is unable to see the SSID in the 5 GHz band in the conference room. When using your own 802.11 ac laptop,
you're able to see the SSID. What is the most likely cause of this problem?
After deploying a 5 GHz-only WLAN infrastructure in the USA, using 20 MHz channel-widths and all 25 available channels, one of the managers of
the company brings his 802.11n tablet to the office to test the Guest SSID. While testing, there were several spots where we would get poor RSSI
(below -80dBM) or none at all. You checked the WLAN infrastructure and all APs are up and running and you've validated coverage after
deployment. What is causing this issue?
After designing and deploying a WLAN infrastructure, you realized the CCI is causing poor performance in the 2.4 GHz band. Primarily, you've
designed the
WLAN for 5 GHz and 2.4 GHz as a best effort. You found out that the implementers didn't follow your guidelines when configuring the WLAN
infrastructure. What can you do to minimize as much as possible the CCI impact in the 2.4 GHz band?
Even when a full pre-design site survey is not performed, what is always recommended to be performed within the deployment areas?
A controller-based WLAN infrastructure has its controller on a different subnet than its APs. What device must be used to enable any
communication between the
Controller and the APs?
What advantages are provided by per-user PSKs when compared with ESS-wide PSKs?(Choose all that apply.)
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What operational plane would a WNMS primarily interact with?
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You are planning for client devices in a WLAN that is be upgraded to 802.11ac. Which one of the following devices is more likely to have support for 3x3:3 radios and 256 QAM?
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You're preparing to perform a site survey for a company that processes meat. Some areas are restricted due to high-security. What do you have to
do in order to proceed with the site survey?
Assume that your network operates in a regulatory domain that allows use of the entire 5 GHz space allowed in the 802.11ac amendment. In your
upcoming
802.11ac deployment, you would like to take advantage of the performance improvements that result from channel bonding. However, after
extensive testing, you have determined that your mission-critical WLAN should not use channels requiring DFS support.
Given those two criteria (enable channel bonding and disable DFS channels), in the 5 GHz spectrum, how many non-overlapping 40 MHz channels
will your system be able to use?
What are the deliverables to your customer after successfully implementing a WLAN infrastructure?
If you choose to recommend dynamic channel assignment for the APs in your WLAN design what action should you also recommend'?
Who should be in the final meeting from the customer-side after successfully implementing a WLAN infrastructure?
When analyzing published competitive tests by equipment vendors, what items are the tests usually lacking?(Choose all that apply.)
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What document can be useful when determining client capabilities in a WLAN design project?
What are the two types of WLAN discovery/scanning?
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The installation crew for your WLAN project wants to install a few APs to locations nearby the ones specified in the RF design document. What next step should occur?
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What VoWiFi implementations frequently require multicast packet delivery support by the WLAN infrastructure?
How are EAP messages transported over 802.11 wireless LANS?
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A table of VLANs in a _________ document should include what device performs ________ services.(Fill in the blanks)
For what purpose is SSID hiding generally useful?(Choose all that apply.)
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What document is typically created to launch a project?
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What is the purpose of Friis transmission equation [ (LdB) = 20 log(d) + 20 log (f) - 27.55 ]?
What is the purpose of defining wall materials in WLAN design software?
A museum wants to offer Wi-Fi to its visitors. One of their requirements is to have the APs blend into the design of the museum. What should you
do to meet this requirement?
When using a predictive design tool, you have selected APs with an antenna gain 3 dBi and set the transmit power of the predicted APs to 25 mW.
What should be EIRP of the APs in the design?
When deploying a new WLAN infrastructure using PoE to power the APs, you realize that a known good AP is not powering up. You use the same
cable to connect your laptop and connect without any trouble. What is the most likely reason the AP did not power up?
You are tasked with designing the WLAN to accommodate certain high density areas on your university campus where users frequently come and
go. With a limited DHCP pool size (subnet mask = 255.255.252.0) for this WLAN subnet, you want to ensure that your DHCP addresses are used
efficiently and are not exhausted, which would prevent new client Layer 3 connections. The DHCP server is a Windows Server 2012 R2 machine.
Your design task is to determine the best configuration to allow as many users as possible while avoiding WLAN service interruptions and also to
use the available addresses as efficiently as possible.
What setting would be most effective at achieving this design task?
You are configuring an 802.11ac AP using manual channel planning. The design specification calls for the current AP to be placed on channel 56 in 5 GHz and to disable the 2.4 GHz radio.
For what could the 2.4 GHz radio be used if not standard AP operations?
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A table of VLANs in a _________ document should include what device performs ________ services.(Fill in the blanks)
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Of the following antenna connector types, which one is the smallest?
You have determined the best mounting locations for APs in a given installation. The facilities manager has asked you to change the locations for
several APs due to aesthetic concerns. You suggest mounting the APs in the ideal locations and painting them so they go unnoticed in the
environment.
What is a valid recommendation or consideration when painting APs?
In the enterprise, when is WPA/WPA2-Personal generally a recommended solution?(Choose all that apply.)
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What is the minimum PoE budget needed on a switch to support 6 (six) APs that can only be powered using IEEE 802.3at if no other details are provided?
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Which DHCP option, when required, should be configured and enabled to help APs locate their wireless LAN controller?
What is the purpose of a Physical Installation Guide document?
When using a predictive design tool, you have selected APs with an antenna gain 3 dBi and set the transmit power of the predicted APs to 25 mW. What should be EIRP of the APs in the design?
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What single tool, by design can be used to verify channel selection, encryption in use and number of APs above a specified signal threshold in a given location during deployment?
Left to its simplest form, what method does a location algorithm use to determine location within a WLAN coverage area?
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How much more power can a 1 Mbps 802.11b signal have than a 54 Mbps 802.11g signal if it is sent through a saturated amplifier?
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When implementing WLAN security according to common best practices, what feature should be enabled when configuring an EAP type?
When selecting a centralized WLAN architecture, what new problem may arise when you change the data forwarding model from centralized to
distributed?
What is the most suitable antenna option to be used when designing a WLAN infrastructure with APs mounted on a ceiling with a height of more than 20 feet and having all of the client stations used from the floor?
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What should you do during the design process of a point to point bridge link to minimize CCI and ACl?
ABC Company has a WLAN controller with 10 controller-based APs; the Voice SSID is configured for centralized data forwarding. Each AP is
connected to an access port on a layer-2 Ethernet switch. Each layer-2 switch is uplinked to a single layer-3 core Ethernet switch. The WLAN
controller is connected directly to the layer-3 core Ethernet switch. Layer-3 tunnels are created between all controller-based APs and the WLAN
controller. A voice server is connected to the layer-3
Ethernet switch.
When a voice-enabled QoS STA sends an IP data packet to a voice server in this scenario, the DSCP value carried in the STA's IP data packet gets
mapped to what and by which device?
When preparing a floor plan graphic for use in predictive and manual site surveying, what calibration method will lead to the most accurate and
reliable RF data?
To increase capacity in a coverage-based wireless network, which of the following techniques are typically recommended?(Choose all that apply.)
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You have been asked to design a WLAN for an organization. They will be replacing an existing WLAN Currently each AP operates 8 SSlDs on each radio What will you communicate with the organization so that they understand the need to reduce the number of SSlDs?
What kind of applications has the character traits of many communications back and forth between the server and client for each transaction initiated by the user?
For example, several files, images and other data files may be required to download to the client with each click from the user. Choose the best answer.
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You performed a site survey with two USB Wi-Fi adapters using a special driver written for the site survey software. After deployment, you realized
that the client devices used by your customer are getting lower RSSI values than that shown during your site survey. What is the most likely reason
for this result?
A museum wants to offer Wi-Fi to its visitors. One of their requirements is to have the APs blend into the design of the museum. What should you do to meet this requirement?
What are the three biggest WLAN enterprise verticals?(Choose all that apply.)
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For an antenna 35 dBi of gain is needed. What antenna type should be used to achieve this gain?
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What type of protection should be provided to outdoor antenna installations?
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You have initiated a site survey to be performed and the team has been onsite and is halfway through gathering the necessary data.
The project sponsor just asked you to make sure the WLAN supports radio frequency identification (RFID) location tracking. How would you possibly characterize this situation?
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What might limit the ability to locate 802.11 clients using a WLAN infrastructure without an 802.11 tag?(Choose all that apply.)
You must perform a site survey that defines signal strength, throughput and latency What kind of survey should you perform?
In addition to a copy of your design, which tools should you use to ensure the installation team deploys APs where you have them designed to be
located?
You are on site, planning a network at a freight shipping company on a busy harbor. Since the preliminary WLAN design specifies support for the 5
GHz spectrum, you would like to test for radar pulses to determine if DFS channels should be supported at this facility. As a part of your spectral
survey with a laptop-based analyzer, you include DFS testing to identify the presence of radar. This is done by manually observing Real-time FFT,
Duty Cycle, and Active Devices charts of the spectrum analyzer software.
What potential drawback is present with this DFS test method?
When you see the SKINNY protocol in a post-install validation protocol capture, what does this indicate?
What best describes ensuring coverage requirements in a deployed WLAN?
You desire to achieve a 450 Mbps MCS. What 802.11n features (from the numbered list below) are required?
1. Frame aggregation
2. Short GI
3. 40 MHz channels
4. 2 spatial streams
5. 3 spatial streams
6. Transmit beamforming (TxBF)
Given: You are evaluating the theoretical and real-world RF gain benefits of transmit and receive features introduced by 802.11 with MIMO. This
exercise allows you to quantify the features value in a real-world environment.
What is the maximum theoretical signal gain of chip-based TxBF and MRC (as features) when compared to the same AP using only a single
antenna for transmit and receive (effectively simulating a 1x1 chip)?
When troubleshooting coverage issues for a wireless network as it appears to new client associations, you should perform which type of survey?
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When implementing multiple SSIDs to what is each SSID typically mapped in order to provide traffic management separately for each SSID?
During a post-deployment verification, you are requested to troubleshoot an area where users are experiencing poor throughput. They are using
data communication only, mainly from laptops. You captured the frame showing an incorrect FCS. This frame is typical of those that were
captured by the analyzer.
What does this frame reveal about the RF network in this area?