a logical connection is a non-physical connection between sender and receiver that allows an exchange of commands and responses.
What is the difference between a physical and non-physical connection?
Physical is palpable, making it pretty simple to understand. You may observe, feel, and track it. It is the physical medium that connects two points, as well as a wider network that includes all nodes, including switches and routers, in between any two points.
The arrangement (topology) of the network falls under the non-physical category and is more of an abstract idea. Software configuration makes it soft and intangible. Non-physical objects include autonomous systems and objects organized into management or routing domains. You must infer it from looking at software/soft setups because you cannot see them by directly looking at them.
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