nerdexam
Cisco

200-401 · Question #47

With a Cisco IE 2000 switch, what does a port status LED indicate when it is alternating green and amber?

The correct answer is D. There is a link fault. On a Cisco IE 2000 switch, an alternating green and amber port LED signals a link fault (D) - the port has detected an error condition such as excessive collisions, CRC errors, or other physical/data-link problems that prevent normal operation. Why the distractors are wrong: A…

Perform Industrial Network Maintenance

Question

With a Cisco IE 2000 switch, what does a port status LED indicate when it is alternating green and amber?

Options

  • AThe port is sending or receiving data.
  • BA link is present.
  • CNo link is present.
  • DThere is a link fault.
  • EThe port is not forwarding.

How the community answered

(33 responses)
  • A
    3% (1)
  • B
    6% (2)
  • D
    88% (29)
  • E
    3% (1)

Explanation

On a Cisco IE 2000 switch, an alternating green and amber port LED signals a link fault (D) - the port has detected an error condition such as excessive collisions, CRC errors, or other physical/data-link problems that prevent normal operation.

Why the distractors are wrong:

  • A (sending/receiving data): Activity is shown by a blinking green LED, not alternating green/amber.
  • B (link present): A solid green LED indicates a healthy, active link.
  • C (no link present): No link is shown by the LED being off entirely.
  • E (port not forwarding): This is a Spanning Tree state, typically shown by amber only (solid amber), not alternating.

Memory tip: Think of alternating green/amber as the switch "arguing with itself" - green wants to say "I'm good," amber wants to say "something's wrong," and the conflict between them = a fault condition. Solid colors are stable states; alternating always means trouble.

Topics

#LED indicators#Port diagnostics#Link fault detection#Switch maintenance

Community Discussion

No community discussion yet for this question.

Full 200-401 Practice