Implementing Cisco IP Switched Networks (CCNP SWITCH, legacy) — Question 67

Which option is a possible cause for an errdisabled interface?

Answer options

• A. routing loop
• B. cable unplugged
• C. STP loop guard
• D. security violation

Correct answer:

Explanation

The correct answer is D. A security violation occurs when a device violates security settings, leading the switch to disable the interface to protect the network. While A, B, and C may cause issues, they do not specifically trigger the errdisabled state like a security violation does.