BASIC OF NETWORKING

      FOR HACKING NETWORKING IS SO IMPORTANT.



Over the past couple of decades many of the networks that were built used
different hardware and software implementations, as a result they were
incompatible and it became difficult for networks using different
specifications to communicate with each other.
• To address the problem of networks being incompatible and unable to
communicate with each other, the International Organisation for
Standardisation (ISO) researched various network schemes.
• The ISO recognised there was a need to create a NETWORK MODEL
that would help vendors create interoperable network implementations