Evaluate different Internet technologies and related communication protocols. Also, compare different Internet services and internetworking servers as well as their related security.  Critically evaluate the following Internet technologies and communication protocols: TCP/IP (Transmission Control Protocol/Internet Protocol), OSI (Open Systems Interconnection), DNS (Domain Name System), DHCP (Dynamic Host Configuration Protocol), SNMP (Simple Network Management Protocol); routing and remote access; telnet; ports and addresses; internet organisations eg ICANN (Internet Corporation for Assigned Names and Numbers), InterNIC (Internet Network Information Centre), IEEE (Institute of Electric and Electronic Engineers); subnetting and supernetting  Critically evaluate the following Internet services: intranet, email, e-Commerce, instant messaging, wikis, blogs, certificate services, directory services; internetworking servers eg ISP (Internet Service Provider), World Wide Web (www), FTP (File Transmission Protocol), database servers, e-Commerce servers, news servers, email servers, proxy servers, media servers, directory servers  Discuss the following Networking technologies and concepts: hub, switch routers; network management concerns, eg client/server environment, user and group management, resources management, security, network attacks, firewall, ethical and legal issues, servers and server performances, user access issues  Critically evaluate the importance of OSI 7 Layer Reference Model  Explain how the OSI (Open Systems Interconnection) reference model relates to the TCP/IP Protocol Model.