Which network medium contains a layer of braided wire or foil between the core and the outside insulating?

The network medium that contains a layer of braided wire or foil between the core and the outside insulating layer is known as shielded twisted pair (STP) cable. This shielding helps to reduce electromagnetic interference (EMI) and crosstalk from external sources, enhancing the quality of the signal transmitted over the cable. STP is commonly used in environments with high electrical noise, making it suitable for certain networking applications.