What is a set of transmissions that are understood to contain data needed by applications and services on the network?

A protocol is a set of rules that governs how devices communicate, including how transmissions are formatted and interpreted so applications and network services can use the data. SaaS is a software-delivery model, Java is a programming language, and the Open Systems Interconnection (OSI) model describes network layers rather than a set of transmissions. The correct choice is protocol.

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