Which of the following is used to verify if a NIC port can send and receive data?
A.
Loopback plug
B.
Toner probe
C.
Cable tester
D.
Network tap
The Answer Is:
A
This question includes an explanation.
Explanation:
A loopback plug is used to test the functionality of network interface card (NIC) ports to ensure they can send and receive data. It is a diagnostic tool that loops back the signal to the device, allowing verification of the network port's operation. This aligns with CompTIA Core 1 objectives related to troubleshooting wired and wireless networks and verifying network connectivity​.
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