N10-009 · Question #473
A technician is alarmed after noticing more than 5,000 CRCs on a switchport. Which of the following should the technician do next?
The correct answer is C. Swap out the patch cable. CRC (Cyclic Redundancy Check) errors typically indicate physical layer problems such as electrical interference, damaged cables, or faulty connectors. The most common and immediate fix is to replace the patch cable, as it's often the root cause of CRC errors. Other options like…
Question
A technician is alarmed after noticing more than 5,000 CRCs on a switchport. Which of the following should the technician do next?
Options
- AMove to a different switchport.
- BCheck for errdisable,
- CSwap out the patch cable.
- DEnable class-of-service.
How the community answered
(20 responses)- A5% (1)
- B15% (3)
- C75% (15)
- D5% (1)
Explanation
CRC (Cyclic Redundancy Check) errors typically indicate physical layer problems such as electrical interference, damaged cables, or faulty connectors. The most common and immediate fix is to replace the patch cable, as it's often the root cause of CRC errors. Other options like changing switchports or checking for errdisable are secondary steps if the problem persists after replacing the cable.
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