Answer:
UTP (Unshielded twisted pair) twisted pair consists of two insulated conductors (usually copper) in a twisted configuration. Color bands are used in plastic insulation for identification. In addition, colors also identify the specific conductors in a cable and to indicate which wires belong in pairs and how they relate to other pairs in a larger bundle.
STP (Shielded twisted-pair) cable has an additional braided mesh coating or metal foil that wraps each set of insulated conductors. The metal casing intercepts the penetration of electromagnetic noise. It also can eradicate a phenomenon called crosstalk, which is the unwanted effect of one circuit (or channel) on another circuit (or channel).
Coaxial Cable has a center conductor covered with an insulator, then braided or solid outer conductor, and then insulation. It has heavier insulation than most cables. It is vulnerable to high frequency interference.
