Answer:
Explanation: (a) Yes, VLSM can be used to divide a Class C address into four subnets. To do this, we would start by subnetting the Class C address with a /27 subnet mask. This would give us 32 subnets, each with 30 hosts. We can then use the remaining two subnets to create the required networks. To create a network with 100 hosts, we would use a /25 subnet mask, giving us two subnets each with 126 hosts. For the network with 55 hosts, we would use a /26 subnet mask, giving us four subnets each with 62 hosts. To create a network with 20 hosts, we would use a /28 subnet mask, giving us 16 subnets each with 14 hosts. Finally, to create a network with 30 hosts, we would use a /27 subnet mask, giving us 32 subnets each with 30 hosts.
(b) Yes, VSLM can be used if the numbers of required hosts are 100, 50, 50, and 20. VSLM is a network design method that uses a hierarchical approach to divide an IP address space into smaller subnets. In this case, the number of hosts required for each subnet can be determined by dividing the total number of hosts by the number of subnets. For example, the first subnet can be assigned 100 hosts, the second subnet can be assigned 50 hosts, the third subnet can be assigned 50 hosts, and the fourth subnet can be assigned 20 hosts. Thus, VSLM can be used to divide the IP address space into smaller subnets based on the number of required hosts.
Just to be clear I picked this answer from somewhere. I hope this helps you.