Question

What is a consideration to take into account when adding a new subnet to an existing VLSM design? (Choose the best answer.)

Use the next available VLSM subnet.

Select a different IP class network to use.

Select a VLSM subnet that has an adequate number of host IP addresses.

Use the smallest possible VLSM.

Answer 1

Select a VLSM subnet with an adequate number of host IP addresses to ensure current and future network scalability and efficient IP address utilization.

Step-by-step explanation:

When adding a new subnet to an existing VLSM (Variable Length Subnet Mask) design, the key consideration is to select a VLSM subnet that has an adequate number of host IP addresses for the current and foreseeable network needs. It's important to avoid choosing the smallest possible VLSM just to conserve IP space, as this could lead to future scalability issues. Similarly, it is not necessarily the best practice to use the next available VLSM subnet without considering the number of hosts it supports or to select a different IP class network, which could lead to inefficient IP address utilization.