
AWS Certified Advanced Networking – Specialty (ANS-C01) Certification Guide
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In the early days of the networking stack, several protocols were developed and used for specific purposes that had a wide range of adoption. There was not one protocol stack that was implemented at a universal level.
Networking protocol suites such as DECnet, AppleTalk, and Novell NetWare were common in enterprise networks, even sometimes coexisting on the same networks. They were often deployed for a specific use case and system proprietary. Over time, many of these protocols were either decommissioned or replaced with the TCP/IP stack. Being an open standard protocol, IP benefits from being well documented, publicly available, not owned by a single entity, and promoting interoperability. IP’s adaptability played a major role in the protocol gaining dominance as the internet grew into what it is today. For example, unlike proprietary protocols such as DECnet and AppleTalk, IP’s flexibility to support a wide range of hardware platforms and its ability...