Question

Short notes on class d and class e on networking

Answer 1

A classful network is a network addressing architecture used in the Internet from 1981 until the introduction of Classless Inter-Domain Routing in 1993. The method divides the IP address space for Internet Protocol version 4 (IPv4) into five address classes by address range. Classes A, B, C are networks of three different network sizes, i.e. number of unicast addresses for hosts. Class D is for multicast. The class E address range is reserved for future or experimental purposes.

Under classful networking, the subnet mask was implied by which address range (class) the address occupied and did not need to be specified separately.