In which of these situations would you use a loopback plug?
A) You need to monitor the data on a SATA connection
B) You need to run a diagnostic on an Ethernet port
C) You need to terminate a SCSI chain
D) You need to modify the resolution of an LCD monitor
E) You need to recalculate the route on the turn you just missed
The answer: B) You need to run a diagnostics on an Ethernet port
A loopback plug works in conjunction with a diagnostics process to determine if the data sent over a connection is properly received after looping back through the plug.
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