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?

You are troubleshooting a client issue on a Windows laptop. The laptop can see and connect to 2.4 GHz APs, but is does not even see 5 GHz APs. While evaluating the issue, you determine that this problem is happening for all of the laptops of this model in the organization. Several other tablets connect on channel 48 and channel 52 in the same work areas. What is the likely problem?

What statement about the IEEE 802.11-2016 QoS facility is true?

You administer a small WLAN with nine access points. As a small business, you do not run 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 times and it is
constrained to one area of the building. When using a WLAN scanner, you see that the AP covering that
area is online and has a strong signal. No other changes have been made to the environment and all
access points are the same model. What is the likely problem?

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?