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CompTIA

220-802 · Question #707

A technician is having connectivity issues with a client's machine. The client's wall jack passed testing and the technician also uses a loopback to test the NIC on the PC and it also passed…

The correct answer is D. Cable tester. Since both the wall jack and NIC passed their individual tests, the patch cable connecting them is the remaining variable, and a cable tester is used to verify that cable.

Hardware and network troubleshooting

Question

A technician is having connectivity issues with a client's machine. The client's wall jack passed testing and the technician also uses a loopback to test the NIC on the PC and it also passed testing. Which of the following tools would a technician use to test between the wall jack and the PC?

Options

  • AToner probe
  • BMultimeter
  • CWireless locator
  • DCable tester

How the community answered

(30 responses)
  • A
    3% (1)
  • B
    7% (2)
  • C
    13% (4)
  • D
    77% (23)

Why each option

Since both the wall jack and NIC passed their individual tests, the patch cable connecting them is the remaining variable, and a cable tester is used to verify that cable.

AToner probe

A toner probe is used to trace and locate cables hidden inside walls or cable bundles and does not test cable functionality or connectivity.

BMultimeter

A multimeter measures electrical properties such as voltage, resistance, and current and is not designed to test network cable wiring or data continuity.

CWireless locator

A wireless locator detects wireless access points and signal strength and is irrelevant to diagnosing a wired Ethernet connection issue.

DCable testerCorrect

A cable tester checks the physical patch cable segment running between the wall jack and the PC's NIC for continuity, correct pin mapping, and shorts, isolating whether a faulty cable is responsible for the connectivity problem.

Concept tested: Using a cable tester to isolate patch cable faults

Source: https://www.comptia.org/certifications/a

Topics

#cable tester#NIC testing#loopback plug#connectivity diagnosis

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