Download Cisco Packet Tracker from the list of tools and install it either in your computer or in a Windows virtual machine.Section A: Setting up the network$1.$ Drag & drop a Cisco $2811$ router, a generic switch, a generic server and two PCs$.$ Then, connect them all. Capture a screenshot of the network with all interfaces in green$\mathrm{.}2.$ Set the IP addresses of the PCs to $192\mathrm{.}168\mathrm{.}1\mathrm{.}10$ and $192\mathrm{.}168\mathrm{.}1\mathrm{.}11,$ the router as $192\mathrm{.}168\mathrm{.}1\mathrm{.}1$ and the server as $192\mathrm{.}168\mathrm{.}1\mathrm{.}2/24.$ Then, ping the router from one of the PCs and capture the screenshot$\mathrm{.}3.$ In the server, go to the Config tab and click on DNS in the list of services. Then, add a new record type A so that the router can be reached out as gateway and another A record for this server to be reached out by a name of your choice $($other than server or server$0).$ Capture a screenshot of the configuration.Section B: Configuring the DHCP pool$4.$ In the router, enter the privileged exec mode, then execute config t$.$ From there, you will be able to set up the DHCP parameters. However, first plan ahead. Write down the whole network in CIDR notation, the range to exclude considering the IP addresses already assigned, the local DNS servers IP address and an appropriate name that describes the dynamic address pool$\mathrm{.}5.$ Execute the commands ip dhcp excluded$-$address FIRST$\_$IP LAST$\_$IP to exclude a range, ip dhcp pool POOL$\_$NAME to add a pools name or description, network NETWORK NETMASK to set the full lease range, dns$-$server DNS$\_$SERVER$\_$IP to set who the nameserver is and default$-$router ROUTER$\_$IP to establish the gateway. Please note all parameters in capital letters must match your planning in the previous question. Provide a screenshot of all the commands$\mathrm{.}6.$ In a real$-$case scenario, you might want to set a lease time with lease $080.$ However, this command is not supported in Packet Tracer. Anyway, how much time this would be$?7.$ Change one of the PCs to dynamic $($DHCP$)$ addressing. Then, open a command$-$line interface in the PC and execute ipconfig $/$all$.$ Provide a screenshot. Finally, change the other PC as well $($no screenshot is necessary$).$ Section C: Configuring the router as a DNS client$8.$ Enter the configuration prompt in the router. Then, execute ip domain$-$lookup and ip name$-$server DNS$\_$SERVER$\_$IP $($substitute this last parameter with the IP address of the only server in the network$).$ Finally, quit with exit and capture a screenshot of a ping to the server using its hostname and also a ping to gateway $($both names were set up in the DNS configuration in previous steps$).$Section D: Backup up and restoring the configuration$9.$ Go to the Config tab in the server and click on TFTP$.$ What extension is common to all listed files?$10.$ Back in the router, copy the running$-$config to this tftp server. The destination file must be router$-$running$-$config. Capture a screen of the command and all requested parameters$\mathrm{.}11.$ Capture a screenshot of the new file shown in the tftp server$\mathrm{.}12.$ Change the routers free interface IP address to $10\mathrm{.}0\mathrm{.}0\mathrm{.}1/24$ and capture a screenshot of sh ip int brief$\mathrm{.}13.$ Restore the configuration from the TFTP server. Capture a screenshot of the sequence of questions and answers$\mathrm{.}14.$ Execute again sh ip int brief and provide a new screenshot$\mathrm{.}15.$ What is the risk of sending the configuration to a server by TFTP$?$ What can you do to mitigate such risk?