which cisco certification is in demand 2020

which cisco certification is in demand 2020.Sometimes resolving these common problems is not easy and they require further investigation. In such cases, the CLI or GUI tool can be used to gather additional information. There are a number of options available in the CLI for troubleshooting. First, the show command can be used in the CLI± to obtain useful information about the operational status of controllers, APs, and clients. Many show commands are available in the various pages of the GUI tool, as you will see in subsequent sections.Some of the show commands that you need to be familiar with are listed below.showclientsummary.showclientdetail oExample 20' shows the output of the show clientsummary command. In this output, you can see the clients that are already associated or trying to associate with the network. In this example, there is an 802.11b client being probed with a MAC address of 0:13:e8:a9:el:29, but it is no longer associated with the AP. In addition, this client was discovered by AP ttLobby-APw.^20-1 Viewing the Client Summary(Cisco Controller) >show clientsummary Number of Clients .................................................................................... 1MACAddressAP Name StatusWLAN Auth Protocol Port00:13:e8:a9:e1:29 Lobby-AP Probing N/ANo 802.11b 1(Cisco Controller)>How will this assist you in the troubleshooting process? Suppose a client reports an association problem, and when you look into it further, you find that Lobby-AP sees the MAC address of the AP, and it is usually associated with Research-Lab. You might then ask if the client is trying to connect in the lobby. Although you don't know where it will take you, at least you have more information than you did at the beginning, and that information may help you solve the problem.