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Free CompTIA A+ 220-1101 Practice Question

A technician is troubleshooting a laptop that is failing to communicate with an older CNC machine via a physical connection. The CNC machine uses a 9-pin port for communication purposes. Which of the following types of cable should the technician use to replace the defective one in order to re-establish a successful connection?

  • Serial Cable (RS-232)

  • VGA Cable

  • Ethernet Cable (RJ-45)

  • Universal Serial Bus (USB) Cable

This question is for objective:
Mobile Devices
Your Score:
Mobile Devices
Networking
Hardware
Virtualization and Cloud Computing
Hardware and Network Troubleshooting