220-802 · Question #539
220-802 Question #539: Real Exam Question with Answer & Explanation
The correct answer is C: Punchdown tool. A punchdown tool (punch-down tool) is used to terminate individual copper wires into the IDC (Insulation Displacement Connector) contacts of keystone jacks, patch panels, or 110-blocks. If a wall port is wired incorrectly, the technician would re-terminate the twisted-pair wires
Question
Options
- AWireless locator
- BTethering with mobile device
- CPunchdown tool
- DCrimper
Explanation
A punchdown tool (punch-down tool) is used to terminate individual copper wires into the IDC (Insulation Displacement Connector) contacts of keystone jacks, patch panels, or 110-blocks. If a wall port is wired incorrectly, the technician would re-terminate the twisted-pair wires to the correct T568A or T568B pinout using a punchdown tool. This is the permanent fix for a mis-wired port. A wireless locator helps find rogue APs. Tethering via mobile device is a temporary workaround, not a permanent fix. A crimper is used to attach RJ-45 connectors to the ends of patch cables, not to punch wires into keystone jacks in the wall.
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