Question

Determine the Number of Subnets in the Topology Diagram. How many networks are there? How many bits should you borrow to create the required number of subnets? How many usable host addresses per subnet did this give you? What is the new subnet mask in decimal form? How many subnets are available for future use?

Answer 1

1) there are 12 networks in the above topology diagram.

IP addressing rules:

1) one router port is one subnet.

2) one subnet is equal to 1 broadcast domain

3) A router with 2 ports will have 2 ip addresses.

4) if one or more router ports are connected to the same LAN segment then they are in the same network.

a) there are 12 networks in the diagram.

b) 4 bits are required to borrow and create required number of subnets.

c) usable host subnets are 14 for each subnet.

d) subnet mask: 255.255.255.240

e) subnets available for future use are 2.