The overall goal of this skills-based assessment is to connect four PCs and 2 switches to create a small LAN using Ethernet and have the PCs communicate using IP. The exam consists of three parts:1. Build the LAN2. Calculate subnets3. Configure workstationsAll three parts must be completed for a possible total of 100 points. PART ONE: BUILD THE LANAdd four end user devices (PC0-PC3) and two 2950-24 switches (Switch0 and Switch1) to packet tracer. On Switch0, connect fa0/2 to PC0 and fa0/3 to PC1. On Switch1, connect fa0/2 to PC2 and fa0/3 to PC3. Connect the two switches via the fa0/1 ports. Be sure to choose the appropriate cable type for all connections.PART TWO: SUBNET CALCULATIONGiven the ClassB IP address, 172.20.2.131/25 determine the following:- The number of bits borrowed- The Subnet ID, and subnet mask- The range of host addresses for this particular subnetBe sure to write your answers downPART THREE: WORKSTATION CONFIGURATION- Configure PC0 with the first usable IP address within the host range defined in Part two. - Configure PC1 with the second usable IP address within the host range defined in Part two. - Configure PC2 with the second to last usable IP address within the host range defined in Part two. - Configure PC3 with the last usable IP address within the host range defined in Part two.Test that all PCs can communicate with one another.