Which definition correctly describes the "local MAC" variation of the centralized WLAN architecture?
What are some common problems with short (12 or fewer characters) ASCII passphrases in WPA/WPA2-Personal networks?
Response:
What is the most cost-effective way to accurately measure the height of a ceiling when ladder use is not allowed?
When installing APs on high ceilings, what should be the most common PPE to be used?
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?
When viewing channel utilization information from a protocol analyzer, if high channel utilization is occurring, what should you ensure does not exist?
Response:
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?
You deployed an AP and installed its antenna, and you now need to set the AP transmit power. Given a desired EIRP of 21 dBm, and an antenna
gain of 5.85 dBd connected through 25 feet of cable with a loss specification of 4 dB/100 feet.
Assuming that there is no significant loss from the connectors, what should be the transmit power level for this AP?
During a validation site survey, you realize that the installers mounted some of the APs above the ceiling. They said that this was a request from the building architect due to aesthetics constraints.
During the requirements gathering, you weren't advised about any aesthetics constraints from the main stakeholder of the project. What should you do in this case?
Response:
During a post-validation assessment, you have configured a client for 802.1X/EAP but it is not passing authentication. Which areas should you check in the WLAN configuration?
Response:
In your company’s WLAN, you expect to have a mixed client PHY environment and plan to use protection mechanisms. The protection mechanism used by your client devices is configurable.
What is the best protection mechanism for backward compatibility of 802.11n devices with 802.11b devices?
Response:
During your first pre-deployment meeting with the deployment team, you hand out the full design documentation to all of them. What's your
primary goal during this meeting?
A business traveler from North America is in Europe. The hotel only provides coverage in 2.4 GHz. The traveler connects to the hotel's SSID and notices an AP in the hotel room.
However, the laptop reports a very low RSSI when connected. The traveler does not have the same problem when connecting in the lobby.
What would be the most likely cause of the low RSSI in the hotel room?
Response:
In the enterprise, when is WPA/WPA2-Personal generally a recommended solution?(Choose all that apply.)
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:
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?
You are conducting a physical site survey where heavy machinery is repaired. What is a common item required specifically for this type of survey?
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?
What advantage provided by 802.11n and 802.11ac is not usable in 1X1:1 low-end client devices?
A company wants to connect its headquarters to its remote office that is 13 kilometers away using a wireless bridge. What requirement must not
be forgotten by their Wireless Engineer when considering the Fresnel Zone?
You and 10 other people are connected to a public hot-spot. You issue a ping sweep on the network, but you can't find any devices on the same
subnet as yours.
What feature might be enabled on the WLAN infrastructure that is preventing you from communicating with other devices on that subnet?
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?
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?
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?
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?
When performing an active site survey in an existing WLAN infrastructure, in addition to gathering throughput data, what other important function
will you typically be testing at the same time?
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?
Response:
Your customer requires a security solution in which client credentials are used and the authentication server must have a certificate with optional
client certificate use. Which EAP method would be the best fit for their requirement?
In a multiple channel architecture (MCA) network supporting 802.1X authentication, what aspect of WLAN design affects client roaming efficiency
and effectiveness?
You are validating association capabilities from clients to an 802.1X/EAP secure SSID. The RADIUS server's IP address is 10.100.50.25 and the
default RADIUS authentication port is used. When testing them, none of the clients are able to associate to the SSID. Troubleshooting the WLAN
infrastructure, you found out that the server is up and the RADIUS service is up as well, but the authenticator is not able to communicate properly
with the server. What's your next troubleshooting step?
For what types of systems should you request read-only access to in order to perform an analysis of the customer’s existing infrastructure?(Choose all that apply.)
Response:
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:
During lunch time in the break room of a company, Wi-Fi connectivity on the 2.4 GHz band is intermittent. Every other time of the day, it works fine. What's the likely cause of this issue?
Response:
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?
Excessive uplink RTP frame retransmissions can result in ____________.
Response:
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?
What strategy can be used to ensure efficient cell overlap for VoIP site surveys?
Response:
To increase capacity in a coverage-based wireless network, which of the following techniques are typically recommended?(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 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?
A customer wants to deploy a WLAN that employs centralized forwarding. What LAN requirements should you look for?
Response:
What are the deliverables to your customer after successfully implementing a WLAN infrastructure?
A cable with 2.5 dB of loss is used to measure the return loss of an antenna. The measured value in-band is shown to be larger than 20 dB. What is the actual return loss of the antenna, and is it considered to be a reasonable value?
Response:
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?
Response:
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?
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?
For what purposes are VPNs typically used in modern WLANs?(Choose all that apply.)
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?
When analyzing published competitive tests by equipment vendors, what items are the tests usually lacking?(Choose all that apply.)
Response:
What might limit the ability to locate 802.11 clients using a WLAN infrastructure without an 802.11 tag?
What term refers to the security practice of obfuscating actual data from unintended receivers as the data crosses the transmission medium?
Response:
When designing for a PTP outdoor link, what important consideration should be made about local vegetation?(Choose all that apply.)
Response:
One of your warehouse customers called you reporting problems with their WLAN in some locations that you designed and installed over a year ago. What should be one of your first considerations for your line of questioning?
Response:
What functions do the control plane of centralized and distributed WLAN architectures help solve?(Choose all that apply.)
Response:
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?
When implementing WLAN security according to common best practices, what feature should be enabled when configuring an EAP type?
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?
A table of VLANs in a _________ document should include what device performs ________ services.(Fill in the blanks)
Response:
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?
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TESTED 04 May 2024
