What is the term for the connection between switching systems?

The term used to describe the connection between switching systems is "Trunk." In telecommunications, trunks are typically high-capacity lines that carry multiple data streams or telephone calls between switching centers. They serve as the backbone of telecommunication networks, facilitating communication and routing the flow of information.

Trunks are essential in connecting different parts of the network, allowing for efficient communication between various endpoints. These connections can include anything from traditional telephone lines to modern digital connections, catering to the bandwidth needs of the network.

The other terms, while related to networking and telecommunications, refer to different concepts. A link is generally a physical or logical connection between two devices, rather than specifically between switching systems. A path usually indicates a specific route data can take through a network, which may involve multiple links or connections, rather than denoting a direct relationship between systems. A node refers to any active device on a network, such as a computer or switch, but does not inherently define the relationships or connections between multiple switching systems.