CompTIA Network+ N10-009 (V9) Practice Question

The primary purpose of a Variable Length Subnet Mask (VLSM) is to allow a network administrator to create subnets of varying sizes from a single network address. This flexibility ensures efficient use of the IP address space by tailoring the subnet size to the specific needs of each network segment, thereby minimizing wasted IP addresses. While network segmentation can improve security, it is not the main goal of VLSM. Furthermore, VLSM is a logical addressing scheme and does not affect data transmission speeds or the number of routers required in a network topology.