Build a simple Layer-2 office network based on the following office scenario:2 physical LANs with 10 employee each,1 network printer on each LAN,1 connection to the WAN/Internet.Include a network diagram:Use Microsoft Visio to create the network diagram. Use proper networking icons in your network diagram (refer to the Preface of Cisco CCENT/CCNA ICND1 100-101 Official Cert Guide). Identify the different collision and broadcast domains on your network diagram: Draw a green circle around each collision domain, Draw a red circle around each broadcast domain.Include the following:A brief discussion on why it is better to increase the number of collision and broadcast domains in your network rather than increase the number of devices in a single collision or broadcast domain.