Certified Wireless Network Administrator

You are implementing a VHT-capable AP.

Which one of the following channels is available in the 802.11- 2016 standard that was not available before the ratification of 802.11 ac?

When compared with legacy Power Save mode, how does VHT TXOP power save improve battery life for devices on a WLAN?

Option 43 must be configured to allow access points to locate controllers.
In what network service should this option be configured?

What common feature of MDM solutions can be used to protect enterprise data on mobile devices?

In WLAN security, what authentication method always creates Layer 2 dynamic encryption keys?

In an 802.11n 2.4 GHz BSS, what prevents each station from using the full network data rate (e.g.
216.7 Mbps) for user data when multiple clients are actively exchanging data with the AP?

A standard PoE injector is use to power an access point requiring 802.3at. CAT6 cabling is in use.

What is the maximum distance supported between the access point and the Ethernet switch with the use of a midspan power injector?

You are troubleshooting a client problem with a 2.4 GHz WLAN connection. The client is experiencing surprisingly low data rates during the work day. You analyze the workspace outside of business hours and detect a strong signal with a typical noise floor at the client location. During working hours, the user works with a laptop in the area and uses an external USB hard drive for continuous data access. The user also states that the laptop works as expected on her home network. The user working approximately 8 feet away from this client experiences no problems.
Based on this information, what is the likely cause of the problem?

You recently purchased four laptops containing dual-band 802.11ac adapters. The laptops can connect to your 2.4 GHz network, but they cannot connect to the 5 GHz network. The laptops do not show the 5 GHz SSIds, which are different than the 2.4 GHz SSIDs. Existing devices can connect to the 5 GHz SSIDs with no difficulty.

What is the likely problem?

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?