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You are here: Home / CompTIA / Network+ / Section IV: Network Management / Chapter 22: Hardware Troubleshooting Tools / Loopback Plug

Loopback Plug

When engaging in some type of lower-level troubleshooting, a loopback plug can be very useful for testing physical ports. Loopback plugs can work with diagnostic tools that are specifically built to work this way or they can be used to trick the application into sending data out just to see its response to data that comes back through the loopback. They are also used when trying to troubleshoot hardware components (e.g., ports) to make sure that the data is going out and coming back in without problems.

Loopback plugs function by sending data out of a connection and . . .

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