Part $5$: Network Topology C

The topology has changed again with a new LAN added to R$2$ and a redundant link between R$1$ and R$3.$ Use the $192\mathrm{.}168\mathrm{.}10\mathrm{.}0/24$ network address to provide addresses to the network devices. Also provide an IP address scheme that will accommodate these additional devices. For this topology, assign a subnet to each network.

Step $1$: Determine the number of subnets in Network Topology C$.$

a$.$ How many subnets are there? $\_\_\_\_\_\_\_\_\_\_\_$

b$.$ How many bits should you borrow to create the required number of subnets? $\_\_\_\_\_\_\_\_\_$

c$.$ How many usable host addresses per subnet are in this addressing scheme? $\_\_\_\_\_\_\_\_\_\_\_$

d$.$ What is the new subnet mask in dotted decimal format? $\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_$ What is the new subnet mask in prefix format? $\_\_\_\_\_\_\_\_\_\_\_$

e$.$ How many subnets are available for future use? $\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_$