How To Prepare For CCNA Certification.

As a CCNA students you must be familiar with and comfortable with the concepts of Vlans. Before you get into what they are is you need to understand what a Local area network is.

The definition of a Local Area Network (LAN) is a collection of network devices located on a shared broadcast domain. This broadcast domain may comprise one physical backbone like a Co-axial cable with drop cables running back to the hosts on the LAN.

The number of devices on the shared broadcast domain will have an impact on the performance of your network. Hosts on the network are continually sending out broadcasts on discover other hosts on the local network segment. Broadcasts are a necessary evil on your networks, without them your hosts would and could not discover the layer 2 addresses of other machines on the local LAN.

This is where you start to consider implementing vlans on your network. With vlans operating on your networks you can control the scope or range of the broadcast and contain it and prevent it from affecting all host across your lans.



Candidate can go before that time if completed earlier. MCTS Training and MCITP Training will be valid till Microsoft continues mainstream support for related technology.