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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?
Response:
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?
Which DHCP option, when required, should be configured and enabled to help APs locate their wireless LAN controller?
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?
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?
A table of VLANs in a _________ document should include what device performs ________ services.(Fill in the blanks)
SSID hiding is not generally recommended because some frames require inclusion of the SSID. In what frames is the SSID always included?
Response:
An AP vendor being considered for a WLAN deployment suggests that their 2 4 GHz and 5 GHz dual-band APs use software defined radios What unique capability does this indicate in comparison to non-software defined radios?
A designer has created a WLAN design that has been implemented in an organization. The network exists in a four-story building Because each floor has an Identical floor plan, the designer designed only one floor and had the installers duplicate the design on each floor. Now. in validation, it is not performing well What best explains the problem caused by this process?
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?
You are designing a WLAN and nave been asked to recommend a security solution for the network The organization requires that 802 1X/EAP be implemented, but they do not have a PKI and do not wish to deploy one They suggest that mostly Windows clients. Apple phones and Android phones will be used What do you recommend?
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?
In the enterprise, when is WPA/WPA2-Personal generally a recommended solution?(Choose all that apply.)
Response:
The thermal noise is at ?174 dBm/Hz. A spectrum analyzer has a resolution bandwidth of 1 kHz and a 5 dB noise figure. What is the level of the noise floor?
Response:
What are the three biggest WLAN enterprise verticals?(Choose all that apply.)
Response:
Your new customer is concerned about maintaining privacy for their proprietary information when you conduct information gathering for their
WLAN design. Which document can you use to directly address their concern?
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?
Response:
In a PC-based spectrum analyzer, what data chart identifies the overall RF utilization of a specific frequency in the environment being surveyed?
You are being asked to design a WLAN for a number of WLAN clients that will use Telnet as the primary application. The customer has asked that you use only the number of APs necessary because of the complex installation and construction costs each AP installation will incur in this particular environment.
What design factors do you consider?
Response:
Given:
In your regulatory domain, a Tx Power Level of "1" is equivalent to 17 dBm.
For every integer increment (e.g. from 1 to 2) to the Tx Power Level, the APs transmit power is halved.
In units of mW, what is the actual transmit power for an AP configured at a Tx Power Level of "4"?
How can you increase efficiency in an 802 11n 2.4 GHz multiple-channel architecture network?
While configuring your site survey software for an upcoming manual survey project, you notice the configuration option for "Network Card
Simulation". What is the purpose of such a feature and when would you use it?
What document can be useful when determining client capabilities in a WLAN design project?
Prior to meeting with the customer for the first time, you should do which of the following?
Response:
An associated STA detects a new BSS with the same SSID as the STA's current BSS. The new BSS uses a different IP subnet than the current BSS.
If the STA is configured to use 802.1X/EAP preauthentication, what is likely to occur?
What two 802.11 amendments deal with regulatory and transmission requirements?
Response:
When viewing channel utilization information from a protocol analyzer, if high channel utilization is occurring, what should you ensure does not exist?
Response:
Why does a frame transmitted at 1 Mbps have a greater usable range than the same frame transmitted at 54 Mbps?
When deploying APs outdoors, what additional component needs to be used that is not needed indoors?
In what circumstance would you not enable DFS channels on a WLAN infrastructure?
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)
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?
When designing a new WLAN infrastructure you also need to be aware of now the network is physically deployed and now the network is logically configured What are two documents that are helpful In this case?
Which of the following items could be considered constraints when performing a network design?(Choose all that apply.)
Response:
When analyzing published competitive tests by equipment vendors, what items are the tests usually lacking?(Choose all that apply.)
Response:
Even when a full pre-design site survey is not performed, what is always recommended to be performed within the deployment areas?
A high power radio system transmits at 40,000 Watts. What is this power in dBm? Solve this without a calculator.
Response:
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?
Response:
Wh.ch one of the following options is a dedicated throughput testing application, usable on both the WLAN and LAN?
When doing some frame capturing over the air during a voice call, you realized that frames on the downlink (from the AP to the client) direction are
not being transmitted with the correct UP value for voice frames, but on the uplink (from the client to the AP) direction are being transmitted
correctly. What's the cause of this issue?
What kind of site survey helps you identify if roaming is working as designed?
In 802.11, clients are required to be calibrated for RSSI and SNR reporting to:
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?
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?
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?
Why should band steering algorithms allow stations to connect to the 2.4 GHz band after some number of ignored Probe Requests?
An enterprise customer is subject to the highest standards for network uptime. When designing their wireless network, you should consider which of the following?(Choose all that apply)
Response:
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?
Response:
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?
Response:
When live video streaming solutions that transmit simultaneously to more than one recipient are used, what special capability should be considered and configured in all affected WLAN implementations?
Response:
When performing an indoor predictive site survey to make the WLAN planning and design cycle more efficient, what is a best practice for
configuration of the simulated APs in the predictive modeling software?
If radar has reportedly been detected on your WLAN deployment, what bands would you consider avoiding?
Response:
A customer is acquiring a new VoWLAN system to replace their existing wired phone system. When reading about his system's requirements, you
learned that is requires 25 db of SNR to work as expected. After surveying the environment, you discovered that the noise floor is -88 dBm. What
should be the minimum RSSI value to meet the system's requirements?
What is the primary reason for avoiding 160 MHz channels with 802 11 in the 5 GHz band'?
When designing a WLAN to support voice in a large office, which design element is of the highest concern for performance?
What important item is often left out of operational and maintenance plans?
Response:
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?
While using a USB adapter attached to a USB hub and your laptop for protocol analysts you notice that the SNR is lower than expected. The USB adapter is an 802 11 ac 3x3 3 adapter and is connected to a USB 3 hub. What is likely causing the SNR variation?
To increase capacity in a coverage-based wireless network, which of the following techniques are typically recommended?(Choose all that apply.)
Response:
When selecting a centralized WLAN architecture, what new problem may arise when you change the data forwarding model from centralized to distributed?
Response:
What is the purpose of Friis transmission equation [ (LdB) = 20 log(d) + 20 log (f) - 27.55 ]?
What inexpensive tool is capable of locating neighbor WLANs if that is your only need?
What is the most appropriate antenna which will require the least Intentional Radiator power for a point-to-point bridge link spanning 1200 meters?
When performing a spectrum analysis walkthrough of a facility tor which you will be creating a WLAN design you detect an interferer What should you do?
You are testing a VoWLAN deployment, and your communication measurements show a certain amount of lost packets. What would be an
acceptable packet error rate value to still provide acceptable call quality?
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?
In a convention center, you have received complaints about the WLAN infrastructure. At this moment, the are only two APs in one auditorium. After
analyzing the situation, you determined that there are more client devices that the infrastructure was designed for. There are only two APs to
support more than 300 devices using the Wi-Fi at the same time. What should you do to make the Wi-Fi work as expected?
What factors are key features when designing a guest network for a large enterprise?(Choose all that apply.)
Response:
Aesthetics are very important in some environments. What common installation technique can be used to best meet this requirement in a
stadium?
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?
Response:
As an implementation engineer, you have just received initial design specs from a network designer for your dual-band 802.11n deployment. The
network design documents prescribe the following data rate configuration for the 2.4 GHz radio:
Basic Rates 5.5, 6, 11, 12 Mbps
Supported Rates 9, 18, 24, 36, 48, and 54 Mbps as well as MCS 0-15
What will result from this design strategy?
Before performing a pre-deployment passive RF survey of a new deployment using survey mapping software, which of the following must be performed?
During an RFP analysis, one of the vendors mentioned that you'll need to upgrade your Gigabit Ethernet switches to MultiGig switches to ensure
support for
802.11ac and 802.11ax, which both offer data rates over 1Gbps. Why is this not sound advice?
Which one of the following might be detected as a source of CCI during a post-validation survey in the 5 GHz band?
You are selecting external antennas for use in a bridge link deployment. What chart should you request from the antenna vendors to make an
accurate selection?
During the deployment of a WLAN the customer complains that the chosen locations for several APs are ruining the aesthetics of the building Instead of changing AP locations and requiring a redesign, what action can you recommend1?
TESTED 16 Mar 2025