A company is moving its entire infrastructure to the cloud. The infrastructure consists of: 100 virtual desktops 10 database servers 10 web servers 15 application servers 15 development servers 7 VDI

A /25 provides 126 usable addresses, the minimum subnet that fits the 100 virtual desktops on their required isolated subnet. Allocating VDI a /25 correctly reserves enough address space for that group, while the remaining smaller server groups receive appropriately sized subnets that fit within the overall /24, satisfying both the host-count and isolation requirements.

Although this option also starts with VDI: /25, the subnet allocations assigned to the remaining server groups do not correctly fit all required host counts within the /24 address space.

This option's subnet allocations for other server groups result in overlapping ranges or incorrectly sized subnets that fail to satisfy the isolation and host-count requirements.

A /26 provides only 62 usable addresses for VDI, which misaligns subnet boundaries and causes subsequent subnet ranges to overflow the /24 or fail to accommodate the required number of hosts.