Which balanced twisted-pair cable type does not have a foil screen around the individual pairs?

The correct answer pertains to the designation of balanced twisted-pair cables. In this context, the abbreviation "SF/UTP" stands for Shielded Foiled Unshielded Twisted Pair. This type of cable features an overall shield but not foil shielding around the individual twisted pairs. The overall shield helps in reducing electromagnetic interference (EMI) from external sources, while the unshielded individual pairs within the cable remain unshielded.

In contrast to SF/UTP, the other cable types are characterized by different shielding configurations. U/FTP denotes unshielded twisted pairs with foil shielding around each pair, S/FTP indicates shielded twisted pairs with an overall foil shield, and F/UTP refers to foiled unshielded twisted pairs, where each pair is unshielded while the whole cable has an overall foil shield. Understanding these distinctions is key to determining the types of twisted-pair cables suitable for various networking environments and their associated electromagnetic interference resilience.