Step 1: Understand that a network is like a big neighborhood with many houses (devices).
Step 2: Realize that subnetting is like dividing that neighborhood into smaller blocks (subnets).
Step 3: Know that each block can have its own address, making it easier to manage the houses (devices) in that block.
Step 4: Learn that by creating smaller blocks, we can reduce the number of houses that hear the same announcements (broadcasts), which is called creating more broadcast domains.
Step 5: Understand that smaller blocks mean fewer addresses to keep track of, which helps reduce the size of the routing table (the list of addresses).
Step 6: Recognize that having smaller blocks can improve security because it limits access to only those in the same block.
Step 7: Finally, know that subnetting can also improve performance by reducing network traffic.