IEC Year 4 Practice Exam 2026 – Complete Study Guide

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___ allow for the termination of the copper cables into a jack, which is then clipped into a faceplate that holds the jack in its location on the wall.

Banana plugs

RJ-45 jacks

The concept is terminating a copper twisted-pair cable into a wall-mounted outlet using a modular jack. For Ethernet, the standard is the RJ-45 jack, which is a modular connector that accepts the twisted-pair conductors terminated inside the jack (often as a keystone style). That jack then clips into a faceplate that fits over a wall box, giving a clean, fixed outlet for a network patch cord. Other options aren’t used for this purpose: banana plugs suit speaker or test leads, twist-on connectors are for splicing wires in boxes, and micro jacks are small audio connectors, not network terminations. So the RJ-45 jack best fits the described setup.

Twist-on connectors

Micro jacks