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NO.47 An engineering firm just upgraded their WLAN form nine 802.11n APS to nine 802.11ac APs. After this upgrade, they did not see any improvement in throughput. What is the most likely cause of this result?
Response:

NO.48 What VoWiFi implementations frequently require multicast packet delivery support by the WLAN infrastructure?

NO.49 Your customer’s 802.11n laptops cannot detect the SSID in the 5 GHz band in a conference room, but your 802.11ac laptop connects without issue. What is the most likely explanation for this discrepancy?

NO.50 ABC Manufacturing has a heavily-used dual-band (2.4 / 5 GHz) WLAN, but sporadic RF interference across the 2.4 GHz band is causing dropped VoWiFi calls and leading to data connectivity and throughput problems.
In addition to avoiding 2.4 GHz channels and installing a distributed spectrum analyzer to locate RF interference sources, what should the implementer do to resolve the problem fully?

NO.51 In high-density environments like stadiums or convention centers, what additional factor must be considered that can attenuate Wi-Fi signals during events?

NO.52 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?

NO.53 When analyzing published competitive tests by equipment vendors, what items are the tests usually lacking?
(Choose all that apply.)
Response:

NO.54 What commonly used item can help lo prevent back pain during lengthy site surveys?

NO.55 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?

NO.56 When deploying a new WLAN infrastructure using Power over Ethernet (PoE) to power the access points (APs), you find that a known good AP is not powering up. You connect your laptop using the same cable without any issues. What is the most likely reason the AP did not power up?

NO.57 In this question, you will compare the mobility processes of a network that supports WPA2-Personal and WPA2-Enterprise. Assume the use of a
15-character
ASCII passphrase for WPA2-Personal and EAP-TTLS/MSCHAPv2 with WPA2-Enterprise. Also, assume that proprietary roaming protocols are not supported.
When a device transitions from one BSS to another within the same ESS, what step must be performed in the WPA2-Enterprise transition that are not performed in the WPA2-Personal transition?

NO.58 What frequency and power did 802.11y provide?

NO.59 What action should be taken after implementing a WLAN based on the design developed from the site survey process?

NO.60 Who should be in the final meeting from the customer-side after successfully implementing a WLAN infrastructure?

NO.61 Which advantage provided by 802.11n and 802.11ac is not usable in 1×1:1 low-end client devices?

NO.62 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?