What feature of 802.1 lax (HE) is managed with beacon and trigger frames and is primarily a power management method, but also provides more efficient access to the channel used within a BSS?
What authentication method is referenced in the 802.11-2016 and 802.11-2020 specifications and is recommended for robust WI-AN client security?
What 802.11 PHY uses available space in very low frequency ranges that is not in use at the time by broadcast video signals?
Your consulting firm has recently been hired to complete a site survey for a company desiring an indoor coverage WI-AN. Your engineers use predictive design software for the task, but the company insists on a pre-design site visit.
What task should be performed as part of the pre-design visit to prepare for a predictive design?
You are installing an AP to be used by 27 laptops. All laptops will connect on the 5 GHz frequency band. A neighbor network uses channels 1 and 6. What channel should be used for this AP and why?
What wireless networking term describes the increase of RF energy in an intentional direction with the use of an antenna?
What is always required to establish a high quality 2.4 GHz RF link at a distance of 3 miles (5 kilometers)?
What primary metric of scanning can stations use to select the best AP for connectivity to the desired BSS?
When a client station sends a broadcast probe request frame with a wildcard SSID, how do APs respond?
What frame type is used to reserve the wireless medium for the transmission of high data rate frames that may not be understood by all clients connected to the BSS?
What statement describes the authorization component of a AAA implementation?
The BSA of an AP covers the area used by the sales and marketing department. Thirty-five stations operate in this space. The users indicate that they need more throughput and all stations are 5 GHz capable 802.11ac clients. The current AP configuration uses 20 MHz channels in both 2.4 GHz and 5 GHz. What is the least expensive solution available for increasing throughput for these users without implementing configuration options that are not recommended?
In addition to coverage analysis results, what should be included in a post-deployment site survey report to ensure WLAN users experience acceptable performance?
What security solution is required to be used in place of Open System Authentication for all open network 802.11 implementations in the 6 GHz band?
When an ACK frame is not received by the transmitting STA, what is assumed?
You support a WLAN using dual-band 802.11ac three stream access points. All access points have both the 2.4 GHz and 5 GHz radios enabled and use 40 MHz channels in 5 GHz and 20 MHz channels in 2.4 GHz. A manager is concerned about the fact that each access point is connected using a 1 Gbps Ethernet link. He is concerned that the Ethernet link will not be able to handle the load from the wireless radios. What do you tell him?
What is an advantage of using WPA3-Personal instead of WPA2-Personal as a security solution for 802.11 networks?
You administer a small WLAN with nine access point. As a small business, you do not rum a RADIUS server and use WPA2-Personal for security. Recently, you changed the passphrase for WPA2-personal in all Aps and clients. Several users are now reporting the inability to connect to the network at time and it is constrained to one area of the building. When using scanner, you see that the AP covering that area is online
When using a spectrum to look for non Wi-Fi interference sources, you notice significant interference across the entire 2.4 GHz band (not on a few select frequencies) within the desktop area of a users workspace, but the interference disappears quickly after just 2 meters. What is the most likely cause of this interference?
What statement is true concerning the use of Orthogonal Frequency Division Multiplexing (OFDM) modulation method in IEEE 802.11 WLANs?
What is required when operating 802.11ax APS in the 6 GHz band using passphrase-based authentication?
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?
When compared with legacy Power Save mode, how does VHT TXOP power save improve battery life for devices on a WLAN?
What factors will have the most significant impact on the amount of wireless bandwidth available to each station within a BSS? (Choose 2)
You are performing a post-implementation validation survey. What basic tool can be used to easily locate areas of high co-channel interference?
An RF signal sometimes bends as it passes through some material other than free space. What is the term that describes this behavior?
Which unit of measurement, as formally defined, is an absolute unit that is used to quantify received signal power levels on a logarithmic scale?
What cipher suite is specified by the 802.11-2016 standard and is not deprecated?
You are the network administrator for ABC Company. Your manager has recently attended a wireless security seminar. The seminar speaker taught that a wireless network could be hidden from potential intruders if you disabled the broadcasting of the SSID in Beacons and configured the access points not to respond to Probe Request frames that have a null SSID field.
Your manager suggests implementing these security practices. What response should you give to this suggestion?
During a post-implementation survey, you have detected a non-802.11 wireless device transmitting in the area used by handheld 802.11g scanners. What is the most important factor in determining the impact of this non-802.11 device?
A POE device requires 47 W of power. What POE specification should be used?
You must plan for POE in an office environment. Which one of these devices is least likely to be a POE PSE?
A client STA must choose the best AP for connectivity. As part of the evaluation, it must verify compatible data rates. What can the client STA use to verify that an
AP supports the same data rates that it supports?