e, a, c, d, f, and b:e. Verify the status indicator lights on the NIC.a. Use a loopback plug to verify the network port on the computer.c. Use a loopback plug to verify the network port in the wall jack.d. Exchange the straight-through cable for a known good one.f. Use a cable tester to test the network cable and termination from the switch in the electrical closet to the wall jack.b. Rewire the keystone RJ45 wall jack.