ccna 9 exam

ccna 9 exam.Enterprise organizations that provide wireless connectivity for their users need to use a WLAN infrastructure to provide additional connectivity options.In the example, the small enterprise network is an 802.3 Ethernet LAN o Each client uses a network cable to connect to a switch. The switch is the point of access to the network for the clients. Notice that the wireless AP is also connected to the switch. Here, either the CiscoWAP4410NAP or the WAP131AP can be used to provide wireless network connectivity.The wireless client uses its wireless card to discover an AP that is announcing an SSID nearby. and then attempts to associate with that AP and authenticate. After authentication, the wireless user can access network resources. Note: The wireless needs of a small company are different from those of a large enterprise. In large enterprises, additional wireless hardware is required in wireless deployments to simplify the installation and management of a siceless network.6.4.2.4 Wireless APsAPs can be classified as either autonomous APs or controller-based APs o Autonomous APs Autonomous APs, sometimes called heavy (heavy) APs, are a standalone device that is configured using the Cisco CLI or GUI. When only a small number ofAutonomous APs are useful when only a small number of APs are needed in the network. In addition, multiple APs can be controlled using WirelessDomainService (WDS)and managed using the CiscoWorks Wireless LAN SolutionEngine (WLSE). Note: A home router is an example of an autonomous AP, because the entire configuration of the AP resides in the device. If the demand for wireless increases, more APs will be required.The APs all operate independently of each other and need to be manuallyAPs operate independently of each other and require manual configuration and management. Controller-based APs Controller-based APs are server-dependent devices that do not require initial configuration. Cisco offers two controller-based solutions.Cisco offers two controller-based solutions. Controller-based APs can be useful when the network requires multiple APs. As APs are added, each one is automatically configured and managed by the WLAN controller. The advantage of the controller is that it can be used to manage a number of APs o Note: Some AP models can run in autonomous or controller-based mode.6.4.2.5 Lightweight APs and Wireless LAN Controllers