A technician is asked to repair a broken Ethernet jack in a conference room. Which of the following tools would the technician use when repairing the wall jack?

A crimper is used to attach RJ-45 or RJ-11 modular plugs onto the end of a cable, not to terminate wires into a wall jack's IDC terminals.

A toner probe is used to trace and identify cable runs through walls or ceilings, not to physically terminate or repair jacks.

A punchdown tool (also called a punch-down or impact tool) is specifically designed to press individual wires into the IDC slots of keystone jacks and patch panels, simultaneously seating the conductor and cutting the excess wire tail - it is the required tool for terminating a wall jack.

A multimeter measures electrical properties such as voltage, resistance, and continuity, and is not a cable termination tool.