While installing routers between two buildings, a technician must configure an IPv4 address on both routers using a subnet mask that will yield only the required IP addresses. What should the technician use for the subnet mask, expressed in CIDR notation?
/ 30 subnet have total two hosts and 419432 subnets. In above example we to connect or install router in two buildings that why /30 subnet is feasible. because this provides two host.
