Which is a characteristic of Shielded Twisted Pair (STP) cabling?

The characteristic of Shielded Twisted Pair (STP) cabling that makes it stand out is its inclusion of an additional layer of protection. This shielding is designed to reduce electromagnetic interference (EMI) from external sources, ensuring that the signals transmitted over the cables maintain higher integrity and quality. The shielding can take various forms, such as foil or braided metal, which surrounds the pairs of wires. This added protection makes STP particularly advantageous in environments with potential interference, such as near electrical equipment or in industrial settings.

Each of the other choices does not accurately describe a defining feature of STP. For example, while UTP (Unshielded Twisted Pair) may be less expensive due to its simpler construction, STP is primarily chosen for its protective capabilities rather than cost. Additionally, while some would argue about the specific environmental uses for STP, it can be installed outdoors if properly rated; however, it is generally seen as more suitable for indoor applications. The proposition that it is typically used for high-speed internet is somewhat misleading as both UTP and STP can be employed in similar roles, and the choice usually depends on the specific requirements for interference control rather than speed alone.