Summary
In this chapter, we saw that:
- Layered models for networking communication allow interoperability, ease of use, and a faster growth of the Internet.
- The TCP/IP model is the most popular model, but the OSI model is used as a reference in network communication. For example, TCP, which is at TCP/IP Layer 3, is referred to as a Layer 4 protocol.
- TCP is a connection-oriented and reliable protocol that implements flow-control, while UDP is much simpler, and provides connectionless, unreliable delivery of packets.
- IP classes A, B, C, D, and E were defined.
- Subnetting is a process to divide an IP class into smaller pieces by borrowing bits from the host part of the IP address to the network part.
- CIDR or IP supernetting is an IP addressing scheme that ...
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