(ISC)2 Certified in Cybersecurity Practice Exam

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What term describes a set of rules and procedures that govern communication between systems?

Protocols
Standards
Frameworks
Modeling Languages

The correct answer is: Protocols

The term that best describes a set of rules and procedures that govern communication between systems is protocols. Protocols ensure that different devices and programs follow the same conventions for communication, allowing them to effectively exchange data. They define specific formats, timings, sequencing, error handling, and other operational procedures necessary for communication. For example, widely-used protocols such as HTTP (Hypertext Transfer Protocol) for web communication or TCP/IP (Transmission Control Protocol/Internet Protocol) for networking illustrate how protocols enable interoperability between different systems. Standards serve a broader purpose, establishing general guidelines or criteria that can apply to various technologies or practices rather than detailing the specific procedures for communication. Frameworks represent conceptual structures designed to aid in the organization of various components in systems, but they do not necessarily specify the detailed rules of communication. Modeling languages are used to represent systems or processes, often focused on design and analysis rather than the communication aspects that protocols cover. Therefore, the focus on the specific rules and procedures for system communication distinctly characterizes protocols.