Network
A network is a system of connected entities and links that enables communication or represents relationships among those entities.
Think Distributed Systems
The communication infrastructure through which distributed-system components send and receive messages.
- How it is used
- Frames communication as a system participant whose behavior determines how distributed components interact.
- How deep it goes
- Models local state, message flow, discrete steps, indirect delivery, and partitions, but stops short of implementation details.
- Examples
- Uses pneumatic tubes, in-flight messages, indirect addressing, and point-to-point links to illustrate communication and failure.
- What you can do after
- Evaluate distributed-system behavior by separating component state from network behavior and recognizing message loss as partition.
Acing the CCNA Exam: Volume 1 Fundamentals and Protocols
A computer network is a set of interconnected devices that communicate and share resources.
- How it is used
- Defines the connected systems and shared services that underpin networking, IT administration, cybersecurity, and cloud work.
- How deep it goes
- Explains nodes, resources, LANs, WANs, device roles, and client-server relationships, but stops short of protocols or configuration.
- Examples
- Uses personal computers, phones, webpages, printers, game servers, cloud software, enterprise servers, and security cameras.
- What you can do after
- Evaluate basic network scenarios by identifying nodes, resources, network scope, device roles, and client-server relationships.
Read how Acing the CCNA Exam: Volume 1 Fundamentals and Protocols explains network →
Infrastructure as Code, Patterns and Practices: With examples in Python and Terraform
A network is the interconnected communication infrastructure that enables systems and users to exchange data.
- How it is used
- Deploys connectivity infrastructure for applications and provides a shared dependency for servers, queues, and traffic-management components.
- How deep it goes
- Explains network selection, parameterization, dependency ordering, and decommissioning, but stops short of network protocol internals.
- Examples
- Uses a parameterized GCP network, a Terraform-managed server, and blue-green network deletion after traffic migration and inactivity review.
- What you can do after
- Operate/configure networks through parameterized Python and Terraform definitions, verify deployments, and retire unused environments safely.
Related concepts
- distributed systemused by · A distributed system is a computing system whose components run across multiple networked processes or machines and coordinate through communication.
- internetincludes · The Internet is the global system of interconnected networks that exchange data using standardized protocols.
- local networkincludes · A local network is a computer network connecting devices within a limited physical or administrative area, such as a home, office, or campus.
- wide area networkincludes · A wide area network is a computer network that connects devices or smaller networks across a broad geographical area.
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