Calculating IPv4 Subnets and Hosts

What is a primary reason for subnetting a network?

• To make it functionally impossible for devices to communicate.

• To allow a single device to know the exact location of every other device in the world.

• To create smaller, manageable networks and enable efficient routing between them.

• To eliminate the need for IP addresses and subnet masks.

What does VSLM (Variable Length Subnet Masks) allow network administrators to do?

• Use only fixed-length subnet masks based on network classes.

• Create networks with an unlimited number of hosts.

• Define custom subnet masks to meet specific network requirements.

• Eliminate the need for routers in a network.

For an IP address 192.168.11.0/26, how many usable host addresses are available per subnet?

• 64

• 62

• 254

• 256

For an IP address 172.16.55.0/21, how many total subnets can be created?

• 16

• 32

• 64

• 2046