Which of the following connectors will uplink a new ISP cable modem to its wall...

A cable modem connects to an ISP’s wall jack using a coaxial cable, and the standard connector used for coaxial connections is the F-type connector. According to CompTIA Core 1 (220-1201) networking hardware and cabling objectives, F-type connectors are specifically designed for coaxial cabling used in cable television and cable internet (DOCSIS) installations. These connectors screw onto the coaxial wall outlet and the cable modem, ensuring a secure physical connection and proper signal transmission.

An LC connector is a fiber-optic connector commonly used with single-mode or multimode fiber cables and is not associated with cable modems. An RJ45 connector is used for Ethernet networking and is typically used to connect the cable modem to a router or computer, not to the wall jack. Lightning is a proprietary Apple connector used for charging and data transfer on mobile devices and has no role in network uplinks.

CompTIA expects candidates to clearly distinguish between different cable types and connectors based on the service being installed. When the scenario involves a cable modem and ISP wall jack, the correct and standard connector is the F-type.