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Exam 350-401 topic 1 question 122 discussion

Actual exam question from Cisco's 350-401
Question #: 122
Topic #: 1
[All 350-401 Questions]

Which PAgP mode combination prevents an EtherChannel from forming?

  • A. auto/desirable
  • B. desirable/desirable
  • C. desirable/auto
  • D. auto/auto
Show Suggested Answer Hide Answer
Suggested Answer: D 🗳️
Reference:
https://www.omnisecu.com/cisco-certified-network-associate-ccna/etherchannel-pagp-and-lacp-modes.php
by skh at Nov. 16, 2020, 9:18 a.m.

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skh
Highly Voted 4 years ago
Auto just listens for PAgP and never tries to initiate an EtherChannel negotiation, and thats why you can't have both sides as Auto. Correct D auto/auto no forming
upvoted 22 times
XalaGyan
3 years ago
wonderful explanation
upvoted 2 times
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[Removed]
Most Recent 6 months, 2 weeks ago
Selected Answer: D
D is correct
upvoted 1 times
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[Removed]
1 year, 5 months ago
Selected Answer: D
corect
upvoted 1 times
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KZM
2 years, 3 months ago
Auto/Desirable and Desirable/Desirable configuration in 2 routers will form PAgP. Auto/Auto in two sides will never negotiate from any side and never form EtherChannel.
upvoted 2 times
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brightsyds
2 years, 9 months ago
D for sure!
upvoted 1 times
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Community vote distribution
A (35%)
C (25%)
B (20%)
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