Chapter $1$ In$-$Class Activity: Name: ID:Answer the following questions for each of the cases below:Notes:This is a theoretical scenario in which we assume that all switch tables and arp tables are empty. We also assume all router interfaces are configured with correct IPs, switched on and the routing table is complete.Moreover, we assume all PCs are configured with correct IPs, subnet masks, and default gateways.The main objective is to master how both the switch tables and arp tables are dynamically built.Questions: Where will the switch send the frame?What is the switch table content after sending the message?Cases: Case $1$: A send message to DCase $2$: D repliesCase $3$: B send message to DCase $4$: B send message to AAdditional questions:Will the MAC address of C be included in the switch table of the left switch? How many entries$/$rows will be in each switch table? Why?A sends a message to C; What is the frame content, when sent by router?