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jirka Coolhousing's Articles in Networks

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Dynamic Host Configuration Protocol DHCP (Dynamic Host Configuration Protocol) is a network protocol based on the client-server model that provides automatic allocation of IP addresses and other parameters that are required to connect to the internet such as gateway addresses, subnet masks and DNS server addresses. A DHCP server must ensure that all IP addresses that it allocates are unique - that is to say that no one else is currently using them. TCP/IP architecture model Unlike the ISO/OSI reference model, TCP/IP architecture is only divided into 4 layers. The exchange of information between the layers is again exactly defined and again, each service uses the services of a lower level and provides its services to a higher layer. The OSI Reference Model and TCP/IP architecture The OSI Model was developed by the International Organization for Standardization in order to provide a standard for computer networking. In 1984 the organization accepted the model as an international standard documented in ISO 7498.