Summary

An understanding of the following key points should have been achieved: Why the Internet was developed and how TCP/IP fits the design of the Internet The four layers of the TCP/IP model The functions of each layer of the TCP/IP model The OSI model compared to the TCP/IP model IP addressing gives each device on the Internet a unique identifier IP address classes are logical divisions of the address space used to meet the needs of various sizes of networks Subnetting is used to divide a network into smaller networks Reserved addresses fulfill a special role in IP addressing and cannot be used for any other purpose Private addresses cannot be routed on the public Internet. The function of a subnet mask is to map the parts of an IP address that are the network and the host Someday IPV4 will be completely obsolete and IPV6 will be the commonly used version A computer must have an IP address to communicate on the Internet An IP address may be configured statically or dynamically A dynamic IP address may be allocated using RARP, BOOTP or DHCP DHCP supplies more information to a client than BOOTP DHCP allows computers to be mobile allowing a connection to many different networks ARP and Proxy ARP can be used to solve address resolution problems