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Exam 300-115 topic 5 question 351 discussion

Actual exam question from Cisco's 300-115
Question #: 351
Topic #: 5
[All 300-115 Questions]

Which option is a possible cause for an errdisabled interface?

  • A. routing loop
  • B. cable unplugged
  • C. STP loop guard
  • D. security violation
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Suggested Answer: Explanation 🗳️
There are various reasons for the interface to go into errdisable. The reason can be:

Duplex mismatch -


Port channel misconfiguration -


BPDU guard violation -

UniDirectional Link Detection (UDLD) condition


Late-collision detection -


Link-flap detection -


Security violation -

Port Aggregation Protocol (PAgP) flap

Layer 2 Tunneling Protocol (L2TP) guard


DHCP snooping rate-limit -

Incorrect GBIC / Small Form-Factor Pluggable (SFP) module or cable Address Resolution Protocol (ARP) inspection


Inline power -

Reference:
http://www.cisco.com/en/US/tech/tk389/tk621/technologies_tech_note09186a00806cd87b.shtml
by aadeeb at July 20, 2019, 4:27 p.m.

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aadeeb
5 years, 11 months ago
Answer is D
upvoted 3 times
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