Twisted-pair cable requires an __________________ connection.

Twisted-pair cable requires an IDC connection because an IDC, or Insulation Displacement Connector, is specifically designed for terminating twisted-pair cabling. This type of connector allows for quick and efficient connection of termination points without the need to strip the insulation off the wire. The IDC mechanism displaces the wire insulation as it is pressed into the connector, ensuring a reliable electrical connection while maintaining the integrity of the twisted pairs, which is crucial for minimizing crosstalk and maintaining performance specifications.

In contrast, the other options such as SC, LC, and ST refer to different types of fiber optic connectors, which are not suitable for twisted-pair cables. These connectors are used primarily for connecting optical fibers in a network, utilizing light to transmit data rather than electrical signals typical of twisted-pair cabling. Therefore, understanding the specific types of connections required for different cabling standards is essential in network installation and maintenance.